+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
24 from io
import BytesIO
+
25 from json
import dumps, loads
+
26 from typing
import List
+
27 from zipfile
import ZipFile
+
+
+
+
+
+
+
+
+
36 import shapely.wkb
as wkblib
+
+
38 from fastapi
import File, HTTPException, UploadFile
+
39 from geoalchemy2.shape
import from_shape
+
40 from geojson
import dump
+
41 from loguru
import logger
as log
+
42 from osm_fieldwork.basemapper
import create_basemap_file
+
43 from osm_fieldwork.data_models
import data_models_path
+
44 from osm_fieldwork.filter_data
import FilterData
+
45 from osm_fieldwork.json2osm
import json2osm
+
46 from osm_fieldwork.OdkCentral
import OdkAppUser
+
47 from osm_fieldwork.xlsforms
import xlsforms_path
+
48 from osm_rawdata.postgres
import PostgresClient
+
49 from shapely
import wkt
+
50 from shapely.geometry
import (
+
+
+
+
+
+
+
+
58 from shapely.ops
import transform
+
59 from sqlalchemy
import and_, column, func, inspect, select, table, text
+
60 from sqlalchemy.dialects.postgresql
import insert
+
61 from sqlalchemy.orm
import Session
+
62 from sqlalchemy.sql
import text
+
+
64 from ..central
import central_crud
+
65 from ..config
import settings
+
66 from ..db
import database, db_models
+
67 from ..db.postgis_utils
import geometry_to_geojson, timestamp
+
68 from ..tasks
import tasks_crud
+
69 from ..users
import user_crud
+
70 from .
import project_schemas
+
+
72 QR_CODES_DIR =
"QR_codes/"
+
73 TASK_GEOJSON_DIR =
"geojson/"
+
74 TILESDIR =
"/opt/tiles"
+
+
+
+
+
+
+
+
82 db_objects: bool =
False,
+
83 hashtags: List[str] =
None,
+
+
+
+
+
88 filters.append(db_models.DbProject.author_id == user_id)
+
+
+
91 filters.append(db_models.DbProject.hashtags.op(
"&&")(hashtags))
+
+
+
94 filters.append(db_models.DbProject.project_name_prefix.ilike(f
"%{search}%"))
+
+
+
+
98 db.query(db_models.DbProject)
+
99 .filter(and_(*filters))
+
100 .order_by(db_models.DbProject.id.desc())
+
+
+
+
+
+
+
+
108 db.query(db_models.DbProject)
+
109 .order_by(db_models.DbProject.id.desc())
+
+
+
+
+
+
+
116 return convert_to_app_projects(db_projects)
+
+
+
119 def get_project_summaries(
+
+
+
+
+
124 hashtags: str =
None,
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
142 db_projects = get_projects(db, user_id, skip, limit,
True, hashtags, search)
+
143 return convert_to_project_summaries(db_projects)
+
+
+
146 def get_project_by_id_w_all_tasks(db: Session, project_id: int):
+
+
148 db.query(db_models.DbProject)
+
149 .filter(db_models.DbProject.id == project_id)
+
+
+
+
153 return convert_to_app_project(db_project)
+
+
+
156 def get_project(db: Session, project_id: int):
+
+
158 db.query(db_models.DbProject)
+
159 .filter(db_models.DbProject.id == project_id)
+
+
+
+
+
+
165 def get_project_by_id(db: Session, project_id: int):
+
+
167 db.query(db_models.DbProject)
+
168 .filter(db_models.DbProject.id == project_id)
+
169 .order_by(db_models.DbProject.id)
+
+
+
172 return convert_to_app_project(db_project)
+
+
+
175 def get_project_info_by_id(db: Session, project_id: int):
+
+
177 db.query(db_models.DbProjectInfo)
+
178 .filter(db_models.DbProjectInfo.project_id == project_id)
+
179 .order_by(db_models.DbProjectInfo.project_id)
+
+
+
182 return convert_to_app_project_info(db_project_info)
+
+
+
185 def delete_project_by_id(db: Session, project_id: int):
+
+
+
188 db.query(db_models.DbProject)
+
189 .filter(db_models.DbProject.id == project_id)
+
190 .order_by(db_models.DbProject.id)
+
+
+
+
194 db.delete(db_project)
+
+
196 except Exception
as e:
+
+
198 raise HTTPException(e)
from e
+
199 return f
"Project {project_id} deleted"
+
+
+
202 def partial_update_project_info(
+
203 db: Session, project_metadata: project_schemas.ProjectUpdate, project_id
+
+
+
206 db_project = get_project_by_id(db, project_id)
+
+
+
+
+
211 status_code=428, detail=f
"Project with id {project_id} does not exist"
+
+
+
+
215 db_project_info = get_project_info_by_id(db, project_id)
+
+
+
218 if project_metadata.name:
+
219 db_project.project_name_prefix = project_metadata.name
+
220 db_project_info.name = project_metadata.name
+
221 if project_metadata.description:
+
222 db_project_info.description = project_metadata.description
+
223 if project_metadata.short_description:
+
224 db_project_info.short_description = project_metadata.short_description
+
+
+
227 db.refresh(db_project)
+
+
229 return convert_to_app_project(db_project)
+
+
+
232 def update_project_info(
+
233 db: Session, project_metadata: project_schemas.BETAProjectUpload, project_id
+
+
235 user = project_metadata.author
+
236 project_info_1 = project_metadata.project_info
+
+
+
+
240 raise HTTPException(
"No user passed in")
+
241 if not project_info_1:
+
242 raise HTTPException(
"No project info passed in")
+
+
+
245 db_user = user_crud.get_user(db, user.id)
+
+
+
248 status_code=400, detail=f
"User {user.username} does not exist"
+
+
+
+
252 db_project = get_project_by_id(db, project_id)
+
+
+
255 status_code=428, detail=f
"Project with id {project_id} does not exist"
+
+
+
+
259 project_info_1 = project_metadata.project_info
+
+
+
262 db_project.author = db_user
+
263 db_project.project_name_prefix = project_info_1.name
+
+
+
266 db_project_info = get_project_info_by_id(db, project_id)
+
+
+
269 db_project_info.name = project_info_1.name
+
270 db_project_info.short_description = project_info_1.short_description
+
271 db_project_info.description = project_info_1.description
+
+
+
274 db.refresh(db_project)
+
+
276 return convert_to_app_project(db_project)
+
+
+
279 def create_project_with_project_info(
+
280 db: Session, project_metadata: project_schemas.BETAProjectUpload, project_id
+
+
282 project_user = project_metadata.author
+
283 project_info_1 = project_metadata.project_info
+
284 xform_title = project_metadata.xform_title
+
285 odk_credentials = project_metadata.odk_central
+
286 hashtags = project_metadata.hashtags
+
287 organisation_id = project_metadata.organisation_id
+
+
+
+
291 raise HTTPException(
"No user passed in")
+
292 if not project_info_1:
+
293 raise HTTPException(
"No project info passed in")
+
+
+
296 "Creating project in FMTM database with vars: "
+
297 f
"project_user: {project_user} | "
+
298 f
"project_info_1: {project_info_1} | "
+
299 f
"xform_title: {xform_title} | "
+
300 f
"hashtags: {hashtags}| "
+
301 f
"organisation_id: {organisation_id}"
+
+
+
+
+
306 url = odk_credentials.odk_central_url
+
307 user = odk_credentials.odk_central_user
+
308 pw = odk_credentials.odk_central_password
+
+
+
311 log.debug(
"ODKCentral connection variables not set in function")
+
312 log.debug(
"Attempting extraction from environment variables")
+
313 url = settings.ODK_CENTRAL_URL
+
314 user = settings.ODK_CENTRAL_USER
+
315 pw = settings.ODK_CENTRAL_PASSWD
+
+
+
+
+
320 db_user = user_crud.get_user(db, project_user.id)
+
+
+
323 status_code=400, detail=f
"User {project_user.username} does not exist"
+
+
+
+
+
+
329 lambda hashtag: hashtag
if hashtag.startswith(
"#")
else f
"#{hashtag}",
+
+
+
+
+
+
+
+
337 db_project = db_models.DbProject(
+
+
+
340 project_name_prefix=project_info_1.name,
+
341 xform_title=xform_title,
+
+
343 odk_central_user=user,
+
344 odk_central_password=pw,
+
+
346 organisation_id=organisation_id,
+
+
+
+
+
+
+
353 db_project_info = db_models.DbProjectInfo(
+
+
355 name=project_info_1.name,
+
356 short_description=project_info_1.short_description,
+
357 description=project_info_1.description,
+
+
359 db.add(db_project_info)
+
+
+
362 db.refresh(db_project)
+
+
364 return convert_to_app_project(db_project)
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
382 ins = insert(forms).values(title=name, xls=xlsform, category=category)
+
383 sql = ins.on_conflict_do_update(
+
384 constraint=
"xlsforms_title_key",
+
385 set_=dict(title=name, xls=xlsform, category=category),
+
+
+
+
+
390 except Exception
as e:
+
391 raise HTTPException(status=400, detail={
"message": str(e)})
from e
+
+
+
394 def update_multi_polygon_project_boundary(
+
+
+
+
+
399 """This function receives the project_id and boundary as a parameter
+
400 and creates a task for each polygon in the database.
+
401 This function also creates a project outline from the multiple polygons received.
+
+
+
404 if isinstance(boundary, str):
+
405 boundary = json.loads(boundary)
+
+
+
408 db_project = get_project_by_id(db, project_id)
+
+
410 log.error(f
"Project {project_id} doesn't exist!")
+
+
+
+
414 if boundary[
"type"] ==
"Feature":
+
415 polygons = [boundary]
+
+
417 polygons = boundary[
"features"]
+
418 log.debug(f
"Processing {len(polygons)} task geometries")
+
419 for polygon
in polygons:
+
+
421 if polygon[
"geometry"][
"type"] ==
"MultiPolygon":
+
422 log.debug(
"Converting MultiPolygon to Polygon")
+
423 polygon[
"geometry"][
"type"] =
"Polygon"
+
424 polygon[
"geometry"][
"coordinates"] = polygon[
"geometry"][
"coordinates"][
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
439 db_task = db_models.DbTask(
+
440 project_id=project_id,
+
441 outline=wkblib.dumps(shape(polygon[
"geometry"]), hex=
True),
+
442 project_task_index=1,
+
+
+
+
+
+
448 db_task.project_task_name = str(db_task.id)
+
+
450 "Created database task | "
+
451 f
"Project ID {project_id} | "
+
452 f
"Task ID {db_task.project_task_name}"
+
+
+
+
+
+
458 f
"""SELECT ST_AsText(ST_ConvexHull(ST_Collect(outline)))
+
+
460 WHERE project_id={project_id};"""
+
+
+
463 log.debug(
"Generating project outline from tasks")
+
464 result = db.execute(query)
+
465 data = result.fetchone()
+
+
467 update_project_location_info(db_project, data[0])
+
+
+
470 db.refresh(db_project)
+
471 log.debug(
"COMPLETE: creating project boundary, based on task boundaries")
+
+
+
474 except Exception
as e:
+
+
476 raise HTTPException(e)
from e
+
+
+
479 async
def preview_tasks(boundary: str, dimension: int):
+
480 """Preview tasks by returning a list of task objects."""
+
481 """Use a lambda function to remove the "z" dimension from each coordinate in the feature's geometry """
+
+
483 def remove_z_dimension(coord):
+
484 return coord.pop()
if len(coord) == 3
else None
+
+
486 """ Check if the boundary is a Feature or a FeatureCollection """
+
487 if boundary[
"type"] ==
"Feature":
+
488 features = [boundary]
+
489 elif boundary[
"type"] ==
"FeatureCollection":
+
490 features = boundary[
"features"]
+
491 elif boundary[
"type"] ==
"Polygon":
+
+
+
+
+
496 "geometry": boundary,
+
+
+
+
+
501 status_code=400, detail=f
"Invalid GeoJSON type: {boundary['type']}"
+
+
+
504 """ Apply the lambda function to each coordinate in its geometry ro remove the z-dimension - if it exists"""
+
+
506 for feature
in features:
+
507 list(map(remove_z_dimension, feature[
"geometry"][
"coordinates"][0]))
+
508 if feature[
"geometry"][
"type"] ==
"MultiPolygon":
+
509 multi_polygons.append(Polygon(feature[
"geometry"][
"coordinates"][0][0]))
+
+
511 """Update the boundary polyon on the database."""
+
+
513 boundary = multi_polygons[0]
+
514 for geom
in multi_polygons[1:]:
+
515 boundary = boundary.union(geom)
+
+
517 boundary = shape(features[0][
"geometry"])
+
+
519 minx, miny, maxx, maxy = boundary.bounds
+
+
+
522 value = dimension / 111139
+
+
524 nx = int((maxx - minx) / value)
+
525 ny = int((maxy - miny) / value)
+
+
+
528 xdiff = abs(maxx - minx)
+
529 ydiff = abs(maxy - miny)
+
+
531 gx, gy = np.linspace(minx, maxx, ny), np.linspace(miny, miny + xdiff, ny)
+
+
533 gx, gy = np.linspace(minx, minx + ydiff, nx), np.linspace(miny, maxy, nx)
+
+
+
+
537 for i
in range(len(gx) - 1):
+
538 for j
in range(len(gy) - 1):
+
+
+
+
+
543 [gx[i + 1], gy[j + 1]],
+
+
+
+
+
+
549 if boundary.intersection(poly):
+
550 feature = geojson.Feature(
+
551 geometry=boundary.intersection(poly), properties={
"id": str(id)}
+
+
+
+
555 geom = shape(feature[
"geometry"])
+
+
557 if geom.geom_type ==
"MultiPolygon":
+
+
559 polygons = geom.geoms
+
+
561 for x
in range(len(polygons)):
+
+
+
+
+
566 "geometry": mapping(polygons[x]),
+
+
568 grid.append(feature1)
+
+
+
+
572 collection = geojson.FeatureCollection(grid)
+
+
+
+
576 if len(collection[
"features"]) == 0:
+
577 boundary = mapping(boundary)
+
+
579 "type":
"FeatureCollection",
+
580 "features": [{
"type":
"Feature",
"geometry": boundary,
"properties": {}}],
+
+
+
+
+
+
+
587 def get_osm_extracts(boundary: str):
+
588 """Request an extract from raw-data-api and extract the file contents.
+
+
590 - The query is posted to raw-data-api and job initiated for fetching the extract.
+
591 - The status of the job is polled every few seconds, until 'SUCCESS' is returned.
+
592 - The resulting zip file is downloaded, extracted, and data returned.
+
+
+
+
+
+
+
599 "join_or": {
"building": [],
"highway": [],
"waterway": []}
+
+
+
+
+
+
+
606 json_boundary = json.loads(boundary)
+
607 if json_boundary.get(
"features",
None)
is not None:
+
608 query[
"geometry"] = json_boundary
+
+
+
611 query[
"geometry"] = json_boundary
+
+
+
614 query[
"fileName"] =
"extract"
+
+
616 query[
"outputType"] =
"geojson"
+
617 extract_filename = f
'{query["fileName"]}.{query["outputType"]}'
+
618 log.debug(f
"Setting data extract file name to: {extract_filename}")
+
+
620 log.debug(f
"Query for raw data api: {query}")
+
621 base_url = settings.UNDERPASS_API_URL
+
622 query_url = f
"{base_url}/snapshot/"
+
623 headers = {
"accept":
"application/json",
"Content-Type":
"application/json"}
+
+
+
626 result = requests.post(query_url, data=json.dumps(query), headers=headers)
+
+
628 if result.status_code == 200:
+
629 task_id = result.json()[
"task_id"]
+
+
+
+
+
634 task_url = f
"{base_url}/tasks/status/{task_id}"
+
+
636 result = requests.get(task_url, headers=headers)
+
637 if result.json()[
"status"] ==
"PENDING":
+
+
+
640 elif result.json()[
"status"] ==
"SUCCESS":
+
+
+
+
+
+
646 zip_url = result.json()[
"result"][
"download_url"]
+
647 result = requests.get(zip_url, headers=headers)
+
+
649 fp = BytesIO(result.content)
+
650 zfp = zipfile.ZipFile(fp,
"r")
+
651 zfp.extract(extract_filename,
"/tmp/")
+
652 data = json.loads(zfp.read(extract_filename))
+
+
654 for feature
in data[
"features"]:
+
655 properties = feature[
"properties"]
+
656 tags = properties.pop(
"tags", {})
+
657 properties.update(tags)
+
+
+
+
+
662 async
def split_into_tasks(
+
663 db: Session, outline: str, no_of_buildings: int, has_data_extracts: bool
+
+
665 """Splits a project into tasks.
+
+
+
668 db (Session): A database session.
+
669 boundary (str): A GeoJSON string representing the boundary of the project to split into tasks.
+
670 no_of_buildings (int): The number of buildings to include in each task.
+
+
+
673 Any: A GeoJSON object containing the tasks for the specified project.
+
+
675 project_id = uuid.uuid4()
+
+
+
+
+
680 if outline[
"type"] ==
"FeatureCollection":
+
681 log.debug(
"Project boundary GeoJSON = FeatureCollection")
+
682 boundary_data.extend(feature[
"geometry"]
for feature
in outline[
"features"])
+
+
684 split_polygon_into_tasks(
+
685 db, project_id, data, no_of_buildings, has_data_extracts
+
+
687 for data
in boundary_data
+
+
+
690 for inner_list
in result:
+
+
692 all_results.extend(iter(inner_list))
+
+
694 elif outline[
"type"] ==
"GeometryCollection":
+
695 log.debug(
"Project boundary GeoJSON = GeometryCollection")
+
696 geometries = outline[
"geometries"]
+
697 boundary_data.extend(iter(geometries))
+
+
699 split_polygon_into_tasks(
+
700 db, project_id, data, no_of_buildings, has_data_extracts
+
+
702 for data
in boundary_data
+
+
704 for inner_list
in result:
+
+
706 all_results.extend(iter(inner_list))
+
+
708 elif outline[
"type"] ==
"Feature":
+
709 log.debug(
"Project boundary GeoJSON = Feature")
+
710 boundary_data = outline[
"geometry"]
+
711 result = split_polygon_into_tasks(
+
712 db, project_id, boundary_data, no_of_buildings, has_data_extracts
+
+
714 all_results.extend(iter(result))
+
+
716 elif outline[
"type"] ==
"Polygon":
+
717 log.debug(
"Project boundary GeoJSON = Polygon")
+
718 boundary_data = outline
+
719 result = split_polygon_into_tasks(
+
720 db, project_id, boundary_data, no_of_buildings, has_data_extracts
+
+
722 all_results.extend(result)
+
+
+
+
726 "Project boundary not one of: Polygon, Feature, GeometryCollection,"
+
727 " FeatureCollection. Task splitting failed."
+
+
+
730 "type":
"FeatureCollection",
+
731 "features": all_results,
+
+
+
+
735 def split_polygon_into_tasks(
+
+
737 project_id: uuid.UUID,
+
+
739 no_of_buildings: int,
+
740 has_data_extracts: bool,
+
+
742 outline = shape(boundary_data)
+
743 db_task = db_models.DbProjectAOI(
+
744 project_id=project_id,
+
+
+
+
+
+
+
+
+
+
754 if not has_data_extracts:
+
755 data = get_osm_extracts(json.dumps(boundary_data))
+
+
+
758 for feature
in data[
"features"]:
+
759 feature_shape = shape(feature[
"geometry"])
+
760 wkb_element = from_shape(feature_shape, srid=4326)
+
761 if feature[
"properties"].get(
"building") ==
"yes":
+
762 db_feature = db_models.DbBuildings(
+
763 project_id=project_id, geom=wkb_element, tags=feature[
"properties"]
+
+
+
766 elif "highway" in feature[
"properties"]:
+
767 db_feature = db_models.DbOsmLines(
+
768 project_id=project_id, geom=wkb_element, tags=feature[
"properties"]
+
+
+
+
+
+
+
+
+
777 DELETE FROM ways_poly
+
778 WHERE NOT ST_Within(ST_Centroid(ways_poly.geom), (SELECT geom FROM project_aoi WHERE project_id = '{project_id}'));
+
+
+
781 result = db.execute(query)
+
+
+
+
785 with open(
"app/db/split_algorithm.sql",
"r")
as sql_file:
+
786 query = sql_file.read()
+
787 log.debug(f
"STARTED project {project_id} task splitting")
+
788 result = db.execute(text(query), params={
"num_buildings": no_of_buildings})
+
789 result = result.fetchall()
+
790 db.query(db_models.DbBuildings).delete()
+
791 db.query(db_models.DbOsmLines).delete()
+
792 db.query(db_models.DbProjectAOI).delete()
+
+
794 log.debug(f
"COMPLETE project {project_id} task splitting")
+
+
796 features = result[0][0][
"features"]
+
+
+
799 f
"Project {project_id}: no tasks returned from splitting algorithm. "
+
800 f
"Params: 'num_buildings': {no_of_buildings}"
+
+
+
+
804 log.debug(f
"Project {project_id} split into {len(features)} tasks")
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
880 def update_project_boundary(
+
881 db: Session, project_id: int, boundary: str, dimension: int
+
+
+
884 db_project = get_project_by_id(db, project_id)
+
+
886 log.error(f
"Project {project_id} doesn't exist!")
+
+
+
889 """Use a lambda function to remove the "z" dimension from each coordinate in the feature's geometry """
+
+
891 def remove_z_dimension(coord):
+
892 return coord.pop()
if len(coord) == 3
else None
+
+
894 """ Check if the boundary is a Feature or a FeatureCollection """
+
895 if boundary[
"type"] ==
"Feature":
+
896 features = [boundary]
+
897 elif boundary[
"type"] ==
"FeatureCollection":
+
898 features = boundary[
"features"]
+
899 elif boundary[
"type"] ==
"Polygon":
+
+
+
+
+
904 "geometry": boundary,
+
+
+
+
+
909 db.delete(db_project)
+
+
+
+
+
914 status_code=400, detail=f
"Invalid GeoJSON type: {boundary['type']}"
+
+
+
917 """ Apply the lambda function to each coordinate in its geometry """
+
+
919 for feature
in features:
+
920 list(map(remove_z_dimension, feature[
"geometry"][
"coordinates"][0]))
+
921 if feature[
"geometry"][
"type"] ==
"MultiPolygon":
+
922 multi_polygons.append(Polygon(feature[
"geometry"][
"coordinates"][0][0]))
+
+
924 """Update the boundary polyon on the database."""
+
+
926 outline = multi_polygons[0]
+
927 for geom
in multi_polygons[1:]:
+
928 outline = outline.union(geom)
+
+
930 outline = shape(features[0][
"geometry"])
+
+
932 update_project_location_info(db_project, outline.wkt)
+
+
+
935 db.refresh(db_project)
+
936 log.debug(
"Added project boundary!")
+
+
938 result = create_task_grid(db, project_id=project_id, delta=dimension)
+
+
+
941 db.query(db_models.DbFeatures).filter(
+
942 db_models.DbFeatures.project_id == project_id
+
+
+
+
946 db.query(db_models.DbTask).filter(
+
947 db_models.DbTask.project_id == project_id
+
+
+
+
951 for poly
in tasks[
"features"]:
+
+
953 task_name = str(poly[
"properties"][
"id"])
+
954 db_task = db_models.DbTask(
+
955 project_id=project_id,
+
956 project_task_name=task_name,
+
957 outline=wkblib.dumps(shape(poly[
"geometry"]), hex=
True),
+
+
+
+
961 project_task_index=1,
+
+
+
+
+
+
+
+
+
+
+
972 def update_project_with_zip(
+
+
+
975 project_name_prefix: str,
+
976 task_type_prefix: str,
+
977 uploaded_zip: UploadFile,
+
+
+
+
+
982 if uploaded_zip.content_type
not in [
+
+
984 "application/zip-compressed",
+
985 "application/x-zip-compressed",
+
+
+
+
989 detail=f
"File must be a zip. Uploaded file was {uploaded_zip.content_type}",
+
+
+
992 with ZipFile(io.BytesIO(uploaded_zip.file.read()),
"r")
as zip:
+
+
994 bad_file = zip.testzip()
+
+
+
997 status_code=400, detail=f
"Zip contained a bad file: {bad_file}"
+
+
+
+
1001 listed_files = zip.namelist()
+
+
1003 if QR_CODES_DIR
not in listed_files:
+
1004 raise HTTPException(
+
+
1006 detail=f
"Zip must contain directory named {QR_CODES_DIR}",
+
+
+
1009 if TASK_GEOJSON_DIR
not in listed_files:
+
1010 raise HTTPException(
+
+
1012 detail=f
"Zip must contain directory named {TASK_GEOJSON_DIR}",
+
+
+
1015 outline_filename = f
"{project_name_prefix}.geojson"
+
1016 if outline_filename
not in listed_files:
+
1017 raise HTTPException(
+
+
1019 detail=f
'Zip must contain file named "{outline_filename}" that contains a FeatureCollection outlining the project',
+
+
+
1022 task_outlines_filename = f
"{project_name_prefix}_polygons.geojson"
+
1023 if task_outlines_filename
not in listed_files:
+
1024 raise HTTPException(
+
+
1026 detail=f
'Zip must contain file named "{task_outlines_filename}" that contains a FeatureCollection where each Feature outlines a task',
+
+
+
+
1030 db_project = get_project_by_id(db, project_id)
+
+
1032 raise HTTPException(
+
1033 status_code=428, detail=f
"Project with id {project_id} does not exist"
+
+
+
+
1037 db_project.project_name_prefix = project_name_prefix
+
1038 db_project.task_type_prefix = task_type_prefix
+
+
+
1041 outline_shape = get_outline_from_geojson_file_in_zip(
+
1042 zip, outline_filename, f
"Could not generate Shape from {outline_filename}"
+
+
1044 update_project_location_info(db_project, outline_shape.wkt)
+
+
+
1047 project_tasks_feature_collection = get_json_from_zip(
+
+
1049 task_outlines_filename,
+
1050 f
"Could not generate FeatureCollection from {task_outlines_filename}",
+
+
+
+
+
+
1056 db_project.total_tasks = len(project_tasks_feature_collection[
"features"])
+
1057 for feature
in project_tasks_feature_collection[
"features"]:
+
1058 task_name = feature[
"properties"][
"task"]
+
+
+
+
1062 f
"{project_name_prefix}_{task_type_prefix}__{task_name}.png"
+
+
1064 db_qr = get_dbqrcode_from_file(
+
+
1066 QR_CODES_DIR + qr_filename,
+
1067 f
"QRCode for task {task_name} does not exist. File should be in {qr_filename}",
+
+
+
+
+
1072 task_outline_shape = get_shape_from_json_str(
+
+
1074 f
"Could not create task outline for {task_name} using {feature}",
+
+
+
+
1078 task_geojson_filename = (
+
1079 f
"{project_name_prefix}_{task_type_prefix}__{task_name}.geojson"
+
+
1081 task_geojson = get_json_from_zip(
+
+
1083 TASK_GEOJSON_DIR + task_geojson_filename,
+
1084 f
"Geojson for task {task_name} does not exist",
+
+
+
+
+
+
1090 task = db_models.DbTask(
+
1091 project_id=project_id,
+
1092 project_task_index=feature[
"properties"][
"fid"],
+
1093 project_task_name=task_name,
+
+
1095 qr_code_id=db_qr.id,
+
1096 outline=task_outline_shape.wkt,
+
+
1098 initial_feature_count=len(task_geojson[
"features"]),
+
+
+
+
+
1103 task_count = task_count + 1
+
1104 db_project.last_updated = timestamp()
+
+
+
+
1108 db.refresh(db_project)
+
+
+
+
+
1113 except HTTPException
as e:
+
+
+
+
1117 except Exception
as e:
+
1118 raise HTTPException(
+
+
1120 detail=f
"{task_count} tasks were created before the following error was thrown: {e}, on feature: {feature}",
+
+
+
+
+
+
+
+
+
+
+
+
+
1133 """Read the list of XLSForms from the disk."""
+
+
1135 package_name =
"osm_fieldwork"
+
1136 for xls
in os.listdir(directory):
+
1137 if xls.endswith(
".xls")
or xls.endswith(
".xlsx"):
+
1138 file_name = xls.split(
".")[0]
+
1139 yaml_file_name = f
"data_models/{file_name}.yaml"
+
1140 if pkg_resources.resource_exists(package_name, yaml_file_name):
+
1141 xlsforms.append(xls)
+
+
+
+
1145 inspect(db_models.DbXForm)
+
+
1147 "xlsforms", column(
"title"), column(
"xls"), column(
"xml"), column(
"id")
+
+
+
+
+
1152 for xlsform
in xlsforms:
+
1153 infile = f
"{directory}/{xlsform}"
+
1154 if os.path.getsize(infile) <= 0:
+
1155 log.warning(f
"{infile} is empty!")
+
+
1157 xls = open(infile,
"rb")
+
1158 name = xlsform.split(
".")[0]
+
+
+
+
1162 ins = insert(forms).values(title=name, xls=data)
+
1163 sql = ins.on_conflict_do_update(
+
1164 constraint=
"xlsforms_title_key", set_=dict(title=name, xls=data)
+
+
+
+
+
+
+
+
1172 def get_odk_id_for_project(db: Session, project_id: int):
+
1173 """Get the odk project id for the fmtm project id."""
+
+
+
+
+
+
1179 where = f
"id={project_id}"
+
1180 sql = select(project).where(text(where))
+
+
1182 result = db.execute(sql)
+
+
+
1185 if result.rowcount != 1:
+
1186 log.warning(str(sql))
+
+
1188 project_info = result.first()
+
1189 return project_info.odkid
+
+
+
1192 def upload_custom_data_extracts(
+
+
+
+
1196 category: str =
"buildings",
+
+
1198 """Uploads custom data extracts to the database.
+
+
+
1201 db (Session): The database session object.
+
1202 project_id (int): The ID of the project.
+
1203 contents (str): The custom data extracts contents.
+
+
+
1206 bool: True if the upload is successful.
+
+
1208 project = get_project(db, project_id)
+
1209 log.debug(f
"Uploading custom data extract for project: {project}")
+
+
+
1212 raise HTTPException(status_code=404, detail=
"Project not found")
+
+
1214 project_geojson = db.query(func.ST_AsGeoJSON(project.outline)).scalar()
+
1215 log.debug(f
"Generated project geojson: {project_geojson}")
+
1216 json.loads(project_geojson)
+
+
1218 features_data = json.loads(contents)
+
+
+
+
+
+
+
+
+
+
+
+
+
+
1232 for feature
in features_data[
"features"]:
+
1233 feature_shape = shape(feature[
"geometry"])
+
1234 if isinstance(feature_shape, MultiPolygon):
+
1235 wkb_element = from_shape(
+
1236 Polygon(feature[
"geometry"][
"coordinates"][0][0]), srid=4326
+
+
1238 elif isinstance(feature_shape, MultiLineString):
+
1239 wkb_element = from_shape(
+
1240 LineString(feature[
"geometry"][
"coordinates"][0]), srid=4326
+
+
+
1243 wkb_element = from_shape(feature_shape, srid=4326)
+
+
+
1246 feature[
"properties"][
"title"] =
""
+
1247 properties = flatten_dict(feature[
"properties"])
+
+
1249 db_feature = db_models.DbFeatures(
+
1250 project_id=project_id,
+
1251 geometry=wkb_element,
+
1252 properties=properties,
+
1253 category_title=category,
+
+
+
+
+
+
+
+
1261 def flatten_dict(d, parent_key="", sep="_"):
+
1262 """Recursively flattens a nested dictionary into a single-level dictionary.
+
+
+
1265 d (dict): The input dictionary.
+
1266 parent_key (str): The parent key (used for recursion).
+
1267 sep (str): The separator character to use in flattened keys.
+
+
+
1270 dict: The flattened dictionary.
+
+
+
1273 for k, v
in d.items():
+
1274 new_key = f
"{parent_key}{sep}{k}" if parent_key
else k
+
1275 if isinstance(v, dict):
+
1276 items.update(flatten_dict(v, new_key, sep=sep))
+
+
+
+
+
+
1282 def generate_task_files(
+
+
+
+
+
+
1288 odk_credentials: project_schemas.ODKCentral,
+
+
1290 project_log = log.bind(task=
"create_project", project_id=project_id)
+
+
1292 project_log.info(f
"Generating files for task {task_id}")
+
1293 project = get_project(db, project_id)
+
1294 odk_id = project.odkid
+
1295 project_name = project.project_name_prefix
+
1296 category = project.xform_title
+
1297 name = f
"{project_name}_{category}_{task_id}"
+
+
+
1300 project_log.info(f
"Creating odkcentral app user for task {task_id}")
+
1301 appuser = central_crud.create_appuser(odk_id, name, odk_credentials)
+
+
+
+
1305 project_log.error(
"Couldn't create appuser for project")
+
+
+
+
1309 project_log.info(f
"Creating qr code for task {task_id}")
+
1310 create_qr = create_qrcode(
+
+
+
1313 appuser.json()[
"token"],
+
+
1315 odk_credentials.odk_central_url,
+
+
+
1318 task = tasks_crud.get_task(db, task_id)
+
1319 task.qr_code_id = create_qr[
"qr_code_id"]
+
+
+
+
+
1324 xform = f
"/tmp/{name}.xml"
+
1325 extracts = f
"/tmp/{name}.geojson"
+
+
+
1328 xform_id = f
"{name}".split(
"_")[2]
+
+
+
+
+
+
+
1335 SET task_id={task_id}
+
+
+
+
1339 WHERE project_id={project_id}
+
1340 AND ST_IsValid(geometry)
+
1341 AND ST_IsValid('{task.outline}'::Geometry)
+
1342 AND ST_Contains('{task.outline}'::Geometry, ST_Centroid(geometry))
+
+
+
+
1346 result = db.execute(query)
+
+
+
+
1350 f
"""SELECT jsonb_build_object(
+
1351 'type', 'FeatureCollection',
+
1352 'features', jsonb_agg(feature)
+
+
+
1355 SELECT jsonb_build_object(
+
+
+
1358 'geometry', ST_AsGeoJSON(geometry)::jsonb,
+
1359 'properties', properties
+
+
+
1362 WHERE project_id={project_id} and task_id={task_id}
+
+
+
+
1366 result = db.execute(query)
+
+
1368 features = result.fetchone()[0]
+
+
1370 upload_media =
False if features[
"features"]
is None else True
+
+
+
1373 with open(extracts,
"w")
as jsonfile:
+
1374 jsonfile.truncate(0)
+
1375 dump(features, jsonfile)
+
+
+
1378 f
"Generating xform for task: {task_id} "
+
1379 f
"using xform: {xform} | form_type: {form_type}"
+
+
1381 outfile = central_crud.generate_updated_xform(xlsform, xform, form_type)
+
+
+
1384 project_log.info(f
"Uploading media in {task_id}")
+
1385 result = central_crud.create_odk_xform(
+
1386 odk_id, task_id, outfile, odk_credentials,
False, upload_media
+
+
+
+
1390 project_log.info(f
"Updating role for app user in task {task_id}")
+
+
+
+
+
1395 url = odk_credentials.odk_central_url
+
1396 user = odk_credentials.odk_central_user
+
1397 pw = odk_credentials.odk_central_password
+
+
+
1400 log.debug(
"ODKCentral connection variables not set in function")
+
1401 log.debug(
"Attempting extraction from environment variables")
+
1402 url = settings.ODK_CENTRAL_URL
+
1403 user = settings.ODK_CENTRAL_USER
+
1404 pw = settings.ODK_CENTRAL_PASSWD
+
+
1406 odk_app = OdkAppUser(url, user, pw)
+
+
+
1409 projectId=odk_id, xform=xform_id, actorId=appuser.json()[
"id"]
+
+
1411 except Exception
as e:
+
+
+
1414 project.extract_completed_count += 1
+
+
+
+
+
+
+
1421 def generate_task_files_wrapper(project_id, task, xlsform, form_type, odk_credentials):
+
1422 for db
in database.get_db():
+
1423 generate_task_files(db, project_id, task, xlsform, form_type, odk_credentials)
+
+
+
1426 def generate_appuser_files(
+
+
+
1429 extract_polygon: bool,
+
+
1431 extracts_contents: str,
+
+
+
1434 background_task_id: uuid.UUID,
+
+
1436 """Generate the files for each appuser.
+
1437 QR code, new XForm, and the OSM data extract.
+
+
+
1440 - db: the database session
+
1441 - project_id: Project ID
+
1442 - extract_polygon: boolean to determine if we should extract the polygon
+
1443 - upload: the xls file to upload if we have a custom form
+
1444 - category: the category of the project
+
1445 - form_type: weather the form is xls, xlsx or xml
+
1446 - background_task_id: the task_id of the background task running this function.
+
+
+
1449 project_log = log.bind(task=
"create_project", project_id=project_id)
+
+
1451 project_log.info(f
"Starting generate_appuser_files for project {project_id}")
+
+
+
+
+
1456 column(
"project_name_prefix"),
+
1457 column(
"xform_title"),
+
+
1459 column(
"odk_central_url"),
+
1460 column(
"odk_central_user"),
+
1461 column(
"odk_central_password"),
+
+
+
+
1465 where = f
"id={project_id}"
+
+
1467 project.c.project_name_prefix,
+
1468 project.c.xform_title,
+
+
1470 project.c.odk_central_url,
+
1471 project.c.odk_central_user,
+
1472 project.c.odk_central_password,
+
1473 geoalchemy2.functions.ST_AsGeoJSON(project.c.outline).label(
"outline"),
+
1474 ).where(text(where))
+
1475 result = db.execute(sql)
+
+
+
1478 if result.rowcount != 1:
+
1479 log.warning(str(sql))
+
1480 if result.rowcount < 1:
+
1481 raise HTTPException(status_code=400, detail=
"Project not found")
+
+
1483 raise HTTPException(status_code=400, detail=
"Multiple projects found")
+
+
1485 one = result.first()
+
+
+
+
+
1490 "odk_central_url": one.odk_central_url,
+
1491 "odk_central_user": one.odk_central_user,
+
1492 "odk_central_password": one.odk_central_password,
+
+
+
1495 odk_credentials = project_schemas.ODKCentral(**odk_credentials)
+
+
1497 xform_title = one.xform_title
if one.xform_title
else None
+
+
1499 category = xform_title
+
+
1501 xlsform = f
"/tmp/{category}.{form_type}"
+
+
1503 with open(xlsform,
"wb")
as f:
+
+
+
1506 xlsform = f
"{xlsforms_path}/{xform_title}.xls"
+
+
+
1509 if extracts_contents
is not None:
+
1510 project_log.info(
"Uploading data extracts")
+
1511 upload_custom_data_extracts(db, project_id, extracts_contents)
+
+
+
+
1515 db.query(db_models.DbProject)
+
1516 .filter(db_models.DbProject.id == project_id)
+
+
+
1519 config_file_contents = project.form_config_file
+
+
1521 project_log.info(
"Extracting Data from OSM")
+
+
1523 config_path =
"/tmp/config.yaml"
+
1524 if config_file_contents:
+
1525 with open(config_path,
"w", encoding=
"utf-8")
as config_file_handle:
+
1526 config_file_handle.write(config_file_contents.decode(
"utf-8"))
+
+
1528 config_path = f
"{data_models_path}/{category}.yaml"
+
+
+
1531 pg = PostgresClient(
"underpass", config_path)
+
1532 outline = json.loads(one.outline)
+
1533 boundary = {
"type":
"Feature",
"properties": {},
"geometry": outline}
+
1534 data_extract = pg.execQuery(boundary)
+
1535 filter = FilterData(xlsform)
+
+
1537 updated_data_extract = {
"type":
"FeatureCollection",
"features": []}
+
1538 filtered_data_extract = (
+
1539 filter.cleanData(data_extract)
+
+
1541 else updated_data_extract
+
+
+
+
1545 feature_mappings = []
+
+
1547 for feature
in filtered_data_extract[
"features"]:
+
+
1549 feature[
"properties"][
"title"] =
""
+
+
1551 feature_shape = shape(feature[
"geometry"])
+
+
+
1554 if extract_polygon
and (
+
1555 not shape(outline).contains(shape(feature_shape.centroid))
+
+
+
+
1559 wkb_element = from_shape(feature_shape, srid=4326)
+
+
1561 "project_id": project_id,
+
1562 "category_title": category,
+
1563 "geometry": wkb_element,
+
1564 "properties": feature[
"properties"],
+
+
1566 updated_data_extract[
"features"].append(feature)
+
1567 feature_mappings.append(feature_mapping)
+
+
1569 db.bulk_insert_mappings(db_models.DbFeatures, feature_mappings)
+
+
+
+
1573 tasks_list = tasks_crud.get_task_lists(db, project_id)
+
+
+
+
+
+
+
+
+
+
1583 for task
in tasks_list:
+
+
1585 generate_task_files(
+
+
+
+
+
+
+
+
1593 except Exception
as e:
+
+
+
+
1597 update_background_task_status_in_database(
+
1598 db, background_task_id, 4
+
+
+
1601 except Exception
as e:
+
+
+
+
1605 update_background_task_status_in_database(
+
1606 db, background_task_id, 2, str(e)
+
+
+
+
+
+
+
+
+
1615 odk_central_url: str =
None,
+
+
+
1618 log.debug(f
"Generating base64 encoded QR settings for token: {token}")
+
1619 qrcode_data = central_crud.create_qrcode(
+
1620 odk_id, token, project_name, odk_central_url
+
+
+
1623 log.debug(
"Generating QR code from base64 settings")
+
1624 qrcode = segno.make(qrcode_data, micro=
False)
+
+
1626 log.debug(
"Saving to buffer and decoding")
+
1627 buffer = io.BytesIO()
+
1628 qrcode.save(buffer, kind=
"png", scale=5)
+
1629 qrcode_binary = buffer.getvalue()
+
+
1631 log.debug(f
"Writing QR code to database for token {token}")
+
1632 qrdb = db_models.DbQrCode(image=qrcode_binary)
+
+
+
1635 codes = table(
"qr_code", column(
"id"))
+
1636 sql = select(sqlalchemy.func.count(codes.c.id))
+
1637 result = db.execute(sql)
+
1638 rows = result.fetchone()[0]
+
1639 return {
"data": qrcode,
"id": rows + 1,
"qr_code_id": qrdb.id}
+
+
+
1642 def get_project_geometry(db: Session, project_id: int):
+
1643 """Retrieves the geometry of a project.
+
+
+
1646 db (Session): The database session.
+
1647 project_id (int): The ID of the project.
+
+
+
1650 str: A geojson of the project outline.
+
+
1652 projects = table(
"projects", column(
"outline"), column(
"id"))
+
1653 where = f
"projects.id={project_id}"
+
1654 sql = select(geoalchemy2.functions.ST_AsGeoJSON(projects.c.outline)).where(
+
+
+
1657 result = db.execute(sql)
+
+
1659 if result.rowcount != 1:
+
1660 log.warning(str(sql))
+
+
1662 row = eval(result.first()[0])
+
1663 return json.dumps(row)
+
+
+
1666 def get_task_geometry(db: Session, project_id: int):
+
1667 """Retrieves the geometry of tasks associated with a project.
+
+
+
1670 db (Session): The database session.
+
1671 project_id (int): The ID of the project.
+
+
+
1674 str: A geojson of the task boundaries
+
+
1676 tasks = table(
"tasks", column(
"outline"), column(
"project_id"), column(
"id"))
+
1677 where = f
"project_id={project_id}"
+
1678 sql = select(geoalchemy2.functions.ST_AsGeoJSON(tasks.c.outline)).where(text(where))
+
1679 result = db.execute(sql)
+
+
+
+
1683 geometry = json.loads(row[0])
+
1684 feature = {
"type":
"Feature",
"geometry": geometry,
"properties": {}}
+
1685 features.append(feature)
+
+
1687 feature_collection = {
"type":
"FeatureCollection",
"features": features}
+
1688 return json.dumps(feature_collection)
+
+
+
1691 async
def get_project_features_geojson(db: Session, project_id: int):
+
1692 """Get a geojson of all features for a task."""
+
+
1694 f
"""SELECT jsonb_build_object(
+
1695 'type', 'FeatureCollection',
+
1696 'features', jsonb_agg(feature)
+
+
+
1699 SELECT jsonb_build_object(
+
+
+
1702 'geometry', ST_AsGeoJSON(geometry)::jsonb,
+
1703 'properties', properties
+
+
+
1706 WHERE project_id={project_id}
+
+
+
+
+
1711 result = db.execute(query)
+
1712 features = result.fetchone()[0]
+
+
+
+
1716 def create_task_grid(db: Session, project_id: int, delta: int):
+
+
+
1719 projects = table(
"projects", column(
"outline"), column(
"id"))
+
1720 where = f
"projects.id={project_id}"
+
1721 sql = select(geoalchemy2.functions.ST_AsGeoJSON(projects.c.outline)).where(
+
+
+
1724 result = db.execute(sql)
+
+
1726 if result.rowcount != 1:
+
1727 log.warning(str(sql))
+
+
1729 data = result.fetchall()
+
1730 boundary = shape(loads(data[0][0]))
+
1731 minx, miny, maxx, maxy = boundary.bounds
+
+
+
1734 value = delta / 111139
+
+
1736 nx = int((maxx - minx) / value)
+
1737 ny = int((maxy - miny) / value)
+
+
+
+
+
+
1743 gx, gy = np.linspace(minx, maxx, ny), np.linspace(miny, miny + xdiff, ny)
+
+
1745 gx, gy = np.linspace(minx, minx + ydiff, nx), np.linspace(miny, maxy, nx)
+
+
+
+
+
1750 for i
in range(len(gx) - 1):
+
1751 for j
in range(len(gy) - 1):
+
+
+
+
+
1756 [gx[i + 1], gy[j + 1]],
+
+
+
+
+
+
1762 if boundary.intersection(poly):
+
1763 feature = geojson.Feature(
+
1764 geometry=boundary.intersection(poly), properties={
"id": str(id)}
+
+
+
1767 geom = shape(feature[
"geometry"])
+
+
1769 if geom.geom_type ==
"MultiPolygon":
+
+
1771 polygons = geom.geoms
+
+
1773 for x
in range(len(polygons)):
+
+
+
+
+
1778 "properties": {
"id": str(id)},
+
1779 "geometry": mapping(polygons[x]),
+
+
1781 grid.append(feature1)
+
+
+
1784 grid.append(feature)
+
+
1786 collection = geojson.FeatureCollection(grid)
+
+
+
1789 out = dumps(collection)
+
+
+
+
1793 result = json.loads(out)
+
1794 if len(result[
"features"]) == 0:
+
1795 geom = loads(data[0][0])
+
+
1797 "type":
"FeatureCollection",
+
+
+
+
+
1802 "properties": {
"id": project_id},
+
+
+
+
1806 out = json.dumps(out)
+
+
+
1809 except Exception
as e:
+
+
+
+
1813 def get_json_from_zip(zip, filename: str, error_detail: str):
+
+
1815 with zip.open(filename)
as file:
+
+
1817 return json.loads(data)
+
1818 except Exception
as e:
+
1819 raise HTTPException(status_code=400, detail=f
"{error_detail} ----- Error: {e}")
+
+
+
1822 def get_outline_from_geojson_file_in_zip(
+
1823 zip, filename: str, error_detail: str, feature_index: int = 0
+
+
+
1826 with zip.open(filename)
as file:
+
+
1828 json_dump = json.loads(data)
+
1829 check_crs(json_dump)
+
1830 feature_collection = geojson.FeatureCollection(json_dump)
+
1831 feature = feature_collection[
"features"][feature_index]
+
1832 geom = feature[
"geometry"]
+
1833 shape_from_geom = shape(geom)
+
1834 return shape_from_geom
+
1835 except Exception
as e:
+
+
1837 raise HTTPException(
+
+
1839 detail=f
"{error_detail} ----- Error: {e} ----",
+
+
+
+
1843 def get_shape_from_json_str(feature: str, error_detail: str):
+
+
1845 geom = feature[
"geometry"]
+
+
1847 except Exception
as e:
+
+
1849 raise HTTPException(
+
+
1851 detail=f
"{error_detail} ----- Error: {e} ---- Json: {feature}",
+
+
+
+
1855 def get_dbqrcode_from_file(zip, qr_filename: str, error_detail: str):
+
+
1857 with zip.open(qr_filename)
as qr_file:
+
1858 binary_qrcode = qr_file.read()
+
+
1860 return db_models.DbQrCode(
+
1861 filename=qr_filename,
+
1862 image=binary_qrcode,
+
+
+
1865 raise HTTPException(
+
1866 status_code=400, detail=f
"{qr_filename} is an empty file"
+
+
1868 except Exception
as e:
+
+
1870 raise HTTPException(
+
1871 status_code=400, detail=f
"{error_detail} ----- Error: {e}"
+
+
+
+
+
+
+
+
+
+
+
1882 def convert_to_app_project(db_project: db_models.DbProject):
+
+
1884 log.debug(
"Converting db project to app project")
+
1885 app_project: project_schemas.Project = db_project
+
+
1887 if db_project.outline:
+
1888 log.debug(
"Converting project outline to geojson")
+
1889 app_project.outline_geojson = geometry_to_geojson(
+
1890 db_project.outline, {
"id": db_project.id}, db_project.id
+
+
+
1893 app_project.project_tasks = tasks_crud.convert_to_app_tasks(db_project.tasks)
+
+
+
+
1897 log.debug(
"convert_to_app_project called, but no project provided")
+
+
+
+
1901 def convert_to_app_project_info(db_project_info: db_models.DbProjectInfo):
+
+
1903 app_project_info: project_schemas.ProjectInfo = db_project_info
+
1904 return app_project_info
+
+
+
+
+
1909 def convert_to_app_projects(db_projects: List[db_models.DbProject]):
+
1910 if db_projects
and len(db_projects) > 0:
+
+
1912 for project
in db_projects:
+
+
1914 app_projects.append(convert_to_app_project(project))
+
1915 app_projects_without_nones = [i
for i
in app_projects
if i
is not None]
+
1916 return app_projects_without_nones
+
+
+
+
+
1921 def convert_to_project_summary(db_project: db_models.DbProject):
+
+
1923 summary: project_schemas.ProjectSummary = db_project
+
+
1925 if db_project.project_info
and len(db_project.project_info) > 0:
+
1926 default_project_info = next(
+
1927 (x
for x
in db_project.project_info),
+
+
+
+
1931 summary.location_str = db_project.location_str
+
1932 summary.title = default_project_info.name
+
1933 summary.description = default_project_info.short_description
+
+
1935 summary.num_contributors = (
+
1936 db_project.tasks_mapped + db_project.tasks_validated
+
+
1938 summary.organisation_logo = (
+
1939 db_project.organisation.logo
if db_project.organisation
else None
+
+
+
+
+
+
+
+
1947 def convert_to_project_summaries(db_projects: List[db_models.DbProject]):
+
1948 if db_projects
and len(db_projects) > 0:
+
1949 project_summaries = []
+
1950 for project
in db_projects:
+
+
1952 project_summaries.append(convert_to_project_summary(project))
+
1953 app_projects_without_nones = [i
for i
in project_summaries
if i
is not None]
+
1954 return app_projects_without_nones
+
+
+
+
+
1959 def convert_to_project_feature(db_project_feature: db_models.DbFeatures):
+
1960 if db_project_feature:
+
1961 app_project_feature: project_schemas.Feature = db_project_feature
+
+
1963 if db_project_feature.geometry:
+
1964 app_project_feature.geometry = geometry_to_geojson(
+
1965 db_project_feature.geometry,
+
1966 db_project_feature.properties,
+
1967 db_project_feature.id,
+
+
+
1970 return app_project_feature
+
+
+
+
+
1975 def convert_to_project_features(db_project_features: List[db_models.DbFeatures]):
+
1976 if db_project_features
and len(db_project_features) > 0:
+
1977 app_project_features = []
+
1978 for project_feature
in db_project_features:
+
+
1980 app_project_features.append(convert_to_project_feature(project_feature))
+
1981 return app_project_features
+
+
+
+
+
1986 def get_project_features(db: Session, project_id: int, task_id: int =
None):
+
+
+
1989 db.query(db_models.DbFeatures)
+
1990 .filter(db_models.DbFeatures.project_id == project_id)
+
1991 .filter(db_models.DbFeatures.task_id == task_id)
+
+
+
+
+
1996 db.query(db_models.DbFeatures)
+
1997 .filter(db_models.DbFeatures.project_id == project_id)
+
+
+
2000 return convert_to_project_features(features)
+
+
+
2003 async
def get_extract_completion_count(project_id: int, db: Session):
+
+
2005 db.query(db_models.DbProject)
+
2006 .filter(db_models.DbProject.id == project_id)
+
+
+
2009 return project.extract_completed_count
+
+
+
2012 async
def get_background_task_status(task_id: uuid.UUID, db: Session):
+
2013 """Get the status of a background task."""
+
+
2015 db.query(db_models.BackgroundTasks)
+
2016 .filter(db_models.BackgroundTasks.id == str(task_id))
+
+
+
2019 return task.status, task.message
+
+
+
2022 async
def insert_background_task_into_database(
+
2023 db: Session, task_id: uuid.UUID, name: str =
None, project_id=
None
+
+
2025 """Inserts a new task into the database
+
+
2027 db: database session
+
2028 task_id: uuid of the task
+
2029 name: name of the task.
+
+
2031 task = db_models.BackgroundTasks(
+
2032 id=str(task_id), name=name, status=1, project_id=project_id
+
+
+
+
+
+
+
+
+
+
2042 def update_background_task_status_in_database(
+
2043 db: Session, task_id: uuid.UUID, status: int, message: str =
None
+
+
2045 """Updates the status of a task in the database
+
+
2047 db: database session
+
2048 task_id: uuid of the task
+
2049 status: status of the task.
+
+
2051 db.query(db_models.BackgroundTasks).filter(
+
2052 db_models.BackgroundTasks.id == str(task_id)
+
+
+
2055 db_models.BackgroundTasks.status: status,
+
2056 db_models.BackgroundTasks.message: message,
+
+
+
+
+
+
+
+
2064 def add_features_into_database(
+
+
+
2067 background_task_id: uuid.UUID,
+
+
+
2070 """Inserts a new task into the database
+
+
2072 db: database session
+
2073 project_id: id of the project
+
2074 features: features to be added.
+
+
+
+
+
2079 project_id = uuid.uuid4()
+
2080 if feature_type ==
"buildings":
+
2081 for feature
in features[
"features"]:
+
+
2083 feature_geometry = feature[
"geometry"]
+
2084 feature_shape = shape(feature_geometry)
+
+
2086 wkb_element = from_shape(feature_shape, srid=4326)
+
2087 building_obj = db_models.DbBuildings(
+
2088 project_id=project_id,
+
+
2090 tags=feature[
"properties"],
+
+
2092 db.add(building_obj)
+
+
+
+
+
+
+
+
2100 update_background_task_status_in_database(
+
2101 db, background_task_id, 4
+
+
+
2104 elif feature_type ==
"lines":
+
2105 for feature
in features[
"features"]:
+
+
2107 feature_geometry = feature[
"geometry"]
+
2108 feature_shape = shape(feature_geometry)
+
2109 feature[
"properties"][
"highway"] =
"yes"
+
+
2111 wkb_element = from_shape(feature_shape, srid=4326)
+
2112 db_feature = db_models.DbOsmLines(
+
2113 project_id=project_id,
+
+
2115 tags=feature[
"properties"],
+
+
+
+
+
+
+
+
+
+
+
2126 update_background_task_status_in_database(
+
2127 db, background_task_id, 4
+
+
+
+
2131 except Exception
as e:
+
+
+
+
2135 update_background_task_status_in_database(
+
2136 db, background_task_id, 2, str(e)
+
+
+
+
2140 async
def update_project_form(
+
2141 db: Session, project_id: int, form_type: str, form: UploadFile = File(
None)
+
+
2143 project = get_project(db, project_id)
+
2144 category = project.xform_title
+
2145 project_title = project.project_name_prefix
+
2146 odk_id = project.odkid
+
+
+
2149 odk_credentials = project_schemas.ODKCentral(
+
2150 odk_central_url=project.odk_central_url,
+
2151 odk_central_user=project.odk_central_user,
+
2152 odk_central_password=project.odk_central_password,
+
+
+
+
2156 xlsform = f
"/tmp/custom_form.{form_type}"
+
2157 contents = await form.read()
+
2158 with open(xlsform,
"wb")
as f:
+
+
+
2161 xlsform = f
"{xlsforms_path}/{category}.xls"
+
+
2163 db.query(db_models.DbFeatures).filter(
+
2164 db_models.DbFeatures.project_id == project_id
+
+
+
+
+
2169 pg = PostgresClient(
"underpass")
+
+
2171 f
"/tmp/{project_title}_{category}.geojson"
+
+
+
2174 extract_polygon =
True if project.data_extract_type ==
"polygon" else False
+
+
2176 project = table(
"projects", column(
"outline"))
+
+
+
+
2180 geoalchemy2.functions.ST_AsGeoJSON(project.c.outline).label(
"outline"),
+
2181 ).where(text(f
"id={project_id}"))
+
2182 result = db.execute(sql)
+
2183 project_outline = result.first()
+
+
2185 final_outline = json.loads(project_outline.outline)
+
+
2187 outline_geojson = pg.getFeatures(
+
2188 boundary=final_outline,
+
+
2190 polygon=extract_polygon,
+
2191 xlsfile=f
"{category}.xls",
+
+
+
+
2195 updated_outline_geojson = {
"type":
"FeatureCollection",
"features": []}
+
+
+
2198 feature_mappings = []
+
+
2200 for feature
in outline_geojson[
"features"]:
+
+
2202 feature[
"properties"][
"title"] =
""
+
+
2204 feature_shape = shape(feature[
"geometry"])
+
+
+
+
+
+
2210 wkb_element = from_shape(feature_shape, srid=4326)
+
+
2212 "project_id": project_id,
+
2213 "category_title": category,
+
2214 "geometry": wkb_element,
+
2215 "properties": feature[
"properties"],
+
+
2217 updated_outline_geojson[
"features"].append(feature)
+
2218 feature_mappings.append(feature_mapping)
+
+
+
2221 db_feature = db_models.DbFeatures(
+
2222 project_id=project_id,
+
2223 category_title=category,
+
2224 geometry=wkb_element,
+
2225 properties=feature[
"properties"],
+
+
+
+
+
2230 tasks_list = tasks_crud.get_task_lists(db, project_id)
+
+
2232 for task
in tasks_list:
+
2233 task_obj = tasks_crud.get_task(db, task)
+
+
+
+
+
+
+
+
+
+
+
+
2245 WHERE project_id={project_id} and ST_Intersects(geometry, '{task_obj.outline}'::Geometry)
+
+
+
+
+
2250 result = db.execute(query)
+
+
+
+
2254 f
"""SELECT jsonb_build_object(
+
2255 'type', 'FeatureCollection',
+
2256 'features', jsonb_agg(feature)
+
+
+
2259 SELECT jsonb_build_object(
+
+
+
2262 'geometry', ST_AsGeoJSON(geometry)::jsonb,
+
2263 'properties', properties
+
+
+
2266 WHERE project_id={project_id} and task_id={task}
+
+
+
+
2270 result = db.execute(query)
+
2271 features = result.fetchone()[0]
+
+
2273 xform = f
"/tmp/{project_title}_{category}_{task}.xml"
+
2274 extracts = f
"/tmp/{project_title}_{category}_{task}.geojson"
+
+
+
2277 with open(extracts,
"w")
as jsonfile:
+
2278 jsonfile.truncate(0)
+
2279 dump(features, jsonfile)
+
+
2281 outfile = central_crud.generate_updated_xform(xlsform, xform, form_type)
+
+
+
2284 result = central_crud.create_odk_xform(
+
2285 odk_id, task, xform, odk_credentials,
True,
True,
False
+
+
+
+
+
+
2291 async
def update_odk_credentials(
+
2292 project_instance: project_schemas.BETAProjectUpload,
+
2293 odk_central_cred: project_schemas.ODKCentral,
+
+
+
+
2297 project_instance.odkid = odkid
+
2298 project_instance.odk_central_url = odk_central_cred.odk_central_url
+
2299 project_instance.odk_central_user = odk_central_cred.odk_central_user
+
2300 project_instance.odk_central_password = odk_central_cred.odk_central_password
+
+
+
2303 db.refresh(project_instance)
+
+
+
2306 async
def get_extracted_data_from_db(db: Session, project_id: int, outfile: str):
+
2307 """Get the geojson of those features for this project."""
+
+
2309 f
"""SELECT jsonb_build_object(
+
2310 'type', 'FeatureCollection',
+
2311 'features', jsonb_agg(feature)
+
+
+
2314 SELECT jsonb_build_object(
+
+
+
2317 'geometry', ST_AsGeoJSON(geometry)::jsonb,
+
2318 'properties', properties
+
+
+
2321 WHERE project_id={project_id}
+
+
+
+
2325 result = db.execute(query)
+
2326 features = result.fetchone()[0]
+
+
+
2329 with open(outfile,
"w")
as jsonfile:
+
2330 jsonfile.truncate(0)
+
2331 dump(features, jsonfile)
+
+
+
2334 def get_project_tiles(
+
+
+
2337 background_task_id: uuid.UUID,
+
+
2339 output_format: str =
"mbtiles",
+
+
+
2342 """Get the tiles for a project.
+
+
+
2345 project_id (int): ID of project to create tiles for.
+
2346 background_task_id (uuid.UUID): UUID of background task to track.
+
2347 source (str): Tile source ("esri", "bing", "topo", "google", "oam").
+
2348 output_format (str, optional): Default "mbtiles".
+
2349 Other options: "pmtiles", "sqlite3".
+
2350 tms (str, optional): Default None. Custom TMS provider URL.
+
+
+
2353 tiles_path_id = uuid.uuid4()
+
2354 tiles_dir = f
"{TILESDIR}/{tiles_path_id}"
+
2355 outfile = f
"{tiles_dir}/{project_id}_{source}tiles.{output_format}"
+
+
2357 tile_path_instance = db_models.DbTilesPath(
+
2358 project_id=project_id,
+
2359 background_task_id=str(background_task_id),
+
+
+
+
+
+
+
2366 db.add(tile_path_instance)
+
+
+
+
2370 log.debug(f
"Getting bbox for project: {project_id}")
+
+
2372 f
"""SELECT ST_XMin(ST_Envelope(outline)) AS min_lon,
+
2373 ST_YMin(ST_Envelope(outline)) AS min_lat,
+
2374 ST_XMax(ST_Envelope(outline)) AS max_lon,
+
2375 ST_YMax(ST_Envelope(outline)) AS max_lat
+
+
2377 WHERE id = {project_id};"""
+
+
+
2380 result = db.execute(query)
+
2381 project_bbox = result.fetchone()
+
2382 log.debug(f
"Extracted project bbox: {project_bbox}")
+
+
+
2385 min_lon, min_lat, max_lon, max_lat = project_bbox
+
+
2387 log.error(f
"Failed to get bbox from project: {project_id}")
+
+
+
2390 "Creating basemap with params: "
+
2391 f
"boundary={min_lon},{min_lat},{max_lon},{max_lat} | "
+
2392 f
"outfile={outfile} | "
+
+
2394 f
"outdir={tiles_dir} | "
+
2395 f
"source={source} | "
+
+
+
+
2399 create_basemap_file(
+
2400 boundary=f
"{min_lon},{min_lat},{max_lon},{max_lat}",
+
+
+
+
+
+
+
+
2408 log.info(f
"Basemap created for project ID {project_id}: {outfile}")
+
+
2410 tile_path_instance.status = 4
+
+
+
+
2414 update_background_task_status_in_database(
+
2415 db, background_task_id, 4
+
+
+
2418 log.info(f
"Tiles generation process completed for project id {project_id}")
+
+
2420 except Exception
as e:
+
2421 log.error(f
"Tiles generation process failed for project id {project_id}")
+
+
+
2424 tile_path_instance.status = 2
+
+
+
+
2428 update_background_task_status_in_database(
+
2429 db, background_task_id, 2, str(e)
+
+
+
+
2433 async
def get_mbtiles_list(db: Session, project_id: int):
+
+
+
+
2437 db_models.DbTilesPath.id,
+
2438 db_models.DbTilesPath.project_id,
+
2439 db_models.DbTilesPath.status,
+
2440 db_models.DbTilesPath.tile_source,
+
+
2442 .filter(db_models.DbTilesPath.project_id == str(project_id))
+
+
+
+
2446 processed_tiles_list = [
+
+
+
2449 "project_id": x.project_id,
+
2450 "status": x.status.name,
+
2451 "tile_source": x.tile_source,
+
+
+
+
+
2456 return processed_tiles_list
+
+
2458 except Exception
as e:
+
2459 raise HTTPException(status_code=400, detail=str(e))
+
+
+
2462 async
def convert_geojson_to_osm(geojson_file: str):
+
2463 """Convert a GeoJSON file to OSM format."""
+
2464 return json2osm(geojson_file)
+
+
+
2467 def generate_appuser_files_for_janakpur(
+
+
+
+
2471 building_extracts_contents: str,
+
2472 road_extracts_contents: str,
+
+
+
2475 background_task_id: uuid.UUID,
+
+
2477 project_log = log.bind(task=
"create_project", project_id=project_id)
+
+
2479 project_log.info(f
"Starting generate_appuser_files for project {project_id}")
+
+
+
+
+
2484 column(
"project_name_prefix"),
+
2485 column(
"xform_title"),
+
+
+
2488 column(
"odk_central_url"),
+
2489 column(
"odk_central_user"),
+
2490 column(
"odk_central_password"),
+
+
+
+
2494 where = f
"id={project_id}"
+
+
2496 project.c.project_name_prefix,
+
2497 project.c.xform_title,
+
+
+
2500 project.c.odk_central_url,
+
2501 project.c.odk_central_user,
+
2502 project.c.odk_central_password,
+
2503 geoalchemy2.functions.ST_AsGeoJSON(project.c.outline).label(
"outline"),
+
2504 ).where(text(where))
+
2505 result = db.execute(sql)
+
+
+
2508 if result.rowcount != 1:
+
2509 log.warning(str(sql))
+
2510 if result.rowcount < 1:
+
2511 raise HTTPException(status_code=400, detail=
"Project not found")
+
+
2513 raise HTTPException(status_code=400, detail=
"Multiple projects found")
+
+
2515 one = result.first()
+
+
+
2518 prefix = one.project_name_prefix
+
+
+
+
2522 "odk_central_url": one.odk_central_url,
+
2523 "odk_central_user": one.odk_central_user,
+
2524 "odk_central_password": one.odk_central_password,
+
+
+
2527 odk_credentials = project_schemas.ODKCentral(**odk_credentials)
+
+
2529 xform_title = one.xform_title
if one.xform_title
else None
+
+
+
2532 xlsform = f
"/tmp/custom_form.{form_type}"
+
+
2534 with open(xlsform,
"wb")
as f:
+
+
+
2537 xlsform = f
"{xlsforms_path}/{xform_title}.xls"
+
+
2539 category = xform_title
+
+
+
+
2543 if building_extracts_contents
is not None:
+
2544 project_log.info(
"Uploading data extracts")
+
2545 upload_custom_data_extracts(db, project_id, building_extracts_contents)
+
+
2547 if road_extracts_contents
is not None:
+
2548 project_log.info(
"Uploading roads data")
+
2549 upload_custom_data_extracts(
+
2550 db, project_id, road_extracts_contents,
"highways"
+
+
+
+
+
2555 tasks_list = tasks_crud.get_task_lists(db, project_id)
+
+
2557 project_name = prefix
+
+
2559 project_obj = get_project(db, project_id)
+
+
2561 for task_id
in tasks_list:
+
+
2563 name = f
"{project_name}_{category}_{task_id}"
+
+
2565 appuser = central_crud.create_appuser(odk_id, name, odk_credentials)
+
+
+
+
2569 project_log.error(
"Couldn't create appuser for project")
+
+
+
+
2573 project_log.info(f
"Creating qr code for task_id {task_id}")
+
2574 create_qr = create_qrcode(
+
+
+
2577 appuser.json()[
"token"],
+
+
2579 odk_credentials.odk_central_url,
+
+
+
2582 task = tasks_crud.get_task(db, task_id)
+
2583 task.qr_code_id = create_qr[
"qr_code_id"]
+
+
+
+
+
2588 xform = f
"/tmp/{name}.xml"
+
+
2590 buildings_extracts = (
+
2591 f
"/tmp/buildings_{name}.geojson"
+
+
+
2594 f
"/tmp/roads_{name}.geojson"
+
+
+
+
2598 xform_id = f
"{name}".split(
"_")[2]
+
+
+
+
+
+
+
2605 SET task_id={task_id}
+
+
+
+
2609 WHERE project_id={project_id}
+
2610 AND ST_IsValid(geometry)
+
2611 AND ST_IsValid('{task.outline}'::Geometry)
+
2612 AND ST_Contains('{task.outline}'::Geometry, ST_Centroid(geometry))
+
+
+
2615 result = db.execute(query)
+
+
+
2618 buildings_query = text(
+
2619 f
"""SELECT jsonb_build_object(
+
2620 'type', 'FeatureCollection',
+
2621 'features', jsonb_agg(feature)
+
+
+
2624 SELECT jsonb_build_object(
+
+
+
2627 'geometry', ST_AsGeoJSON(geometry)::jsonb,
+
2628 'properties', properties
+
+
+
2631 WHERE project_id={project_id} and task_id={task_id} and category_title='buildings'
+
+
+
2634 result = db.execute(buildings_query)
+
2635 features = result.fetchone()[0]
+
+
2637 highway_query = text(
+
2638 f
"""SELECT jsonb_build_object(
+
2639 'type', 'FeatureCollection',
+
2640 'features', jsonb_agg(feature)
+
+
+
2643 SELECT jsonb_build_object(
+
+
+
2646 'geometry', ST_AsGeoJSON(geometry)::jsonb,
+
2647 'properties', properties
+
+
+
2650 WHERE project_id={project_id} and category_title='highways'
+
+
+
2653 highway_result = db.execute(highway_query)
+
2654 highway_features = highway_result.fetchone()[0]
+
+
+
+
+
+
2660 with open(buildings_extracts,
"w")
as jsonfile:
+
2661 jsonfile.truncate(0)
+
2662 dump(features, jsonfile)
+
+
+
2665 with open(roads_extracts,
"w")
as jsonfile:
+
2666 jsonfile.truncate(0)
+
2667 dump(highway_features, jsonfile)
+
+
2669 project_log.info(f
"Generating xform for task {task_id}")
+
2670 outfile = central_crud.generate_updated_xform_for_janakpur(
+
2671 xlsform, xform, form_type
+
+
+
+
2675 project_log.info(f
"Uploading media in {task_id}")
+
2676 result = central_crud.create_odk_xform_for_janakpur(
+
2677 odk_id, task, outfile, odk_credentials,
False, upload_media
+
+
+
2680 project_log.info(f
"Updating role for app user in task {task_id}")
+
+
+
+
+
2685 url = odk_credentials.odk_central_url
+
2686 user = odk_credentials.odk_central_user
+
2687 pw = odk_credentials.odk_central_password
+
+
+
2690 log.debug(
"ODKCentral connection variables not set in function")
+
2691 log.debug(
"Attempting extraction from environment variables")
+
2692 url = settings.ODK_CENTRAL_URL
+
2693 user = settings.ODK_CENTRAL_USER
+
2694 pw = settings.ODK_CENTRAL_PASSWD
+
+
2696 odk_app = OdkAppUser(url, user, pw)
+
+
+
2699 projectId=odk_id, xform=xform_id, actorId=appuser.json()[
"id"]
+
+
+
2702 except Exception
as e:
+
+
+
2705 project_obj.extract_completed_count += 1
+
+
2707 db.refresh(project_obj)
+
+
+
2710 update_background_task_status_in_database(
+
2711 db, background_task_id, 4
+
+
+
+
2715 def get_address_from_lat_lon(latitude, longitude):
+
2716 """Get address using Nominatim, using lat,lon."""
+
2717 base_url =
"https://nominatim.openstreetmap.org/reverse"
+
+
+
+
+
+
+
+
2725 headers = {
"Accept-Language":
"en"}
+
+
2727 response = requests.get(base_url, params=params, headers=headers)
+
2728 data = response.json()
+
2729 address = data[
"address"][
"country"]
+
+
2731 if response.status_code == 200:
+
2732 if "city" in data[
"address"]:
+
2733 city = data[
"address"][
"city"]
+
2734 address = f
"{city}" +
"," + address
+
+
+
2737 return "Address not found."
+
+
+
2740 def update_project_location_info(
+
2741 db_project: sqlalchemy.orm.declarative_base, project_boundary: str
+
+
2743 """Update project boundary, centroid, address.
+
+
+
2746 db_project(sqlalchemy.orm.declarative_base): The project database record.
+
2747 project_boundary(str): WKT string geometry.
+
+
2749 db_project.outline = project_boundary
+
2750 centroid = (wkt.loads(project_boundary)).centroid.wkt
+
2751 db_project.centroid = centroid
+
2752 geometry = wkt.loads(centroid)
+
2753 longitude, latitude = geometry.x, geometry.y
+
2754 address = get_address_from_lat_lon(latitude, longitude)
+
2755 db_project.location_str = address
if address
is not None else ""
+
+
+
2758 def convert_geojson_to_epsg4326(input_geojson):
+
2759 source_crs = pyproj.CRS(
+
2760 input_geojson.get(
"crs", {}).get(
"properties", {}).get(
"name",
"EPSG:4326")
+
+
2762 transformer = pyproj.Transformer.from_crs(source_crs,
"EPSG:4326", always_xy=
True)
+
+
+
2765 transformed_features = []
+
2766 for feature
in input_geojson.get(
"features", []):
+
2767 geom = shape(feature.get(
"geometry", {}))
+
2768 transformed_geom = transform(transformer.transform, geom)
+
2769 transformed_feature = {
+
+
2771 "geometry": transformed_geom.__geo_interface__,
+
2772 "properties": feature.get(
"properties", {}),
+
+
2774 transformed_features.append(transformed_feature)
+
+
+
2777 output_geojson = {
"type":
"FeatureCollection",
"features": transformed_features}
+
+
2779 return output_geojson
+
+
+
2782 def check_crs(input_geojson: dict):
+
2783 log.debug(
"validating coordinate reference system")
+
+
2785 def is_valid_crs(crs_name):
+
+
2787 "urn:ogc:def:crs:OGC:1.3:CRS84",
+
2788 "urn:ogc:def:crs:EPSG::4326",
+
+
+
2791 return crs_name
in valid_crs_list
+
+
2793 def is_valid_coordinate(coord):
+
2794 return -180 <= coord[0] <= 180
and -90 <= coord[1] <= 90
+
+
2796 error_message =
"ERROR: Unsupported coordinate system, it is recommended to use a GeoJSON file in WGS84(EPSG 4326) standard."
+
2797 if "crs" in input_geojson:
+
2798 crs = input_geojson[
"crs"][
"properties"][
"name"]
+
2799 if not is_valid_crs(crs):
+
2800 log.error(error_message)
+
2801 raise HTTPException(status_code=400, detail=error_message)
+
+
+
2804 if input_geojson[
"type"] ==
"FeatureCollection":
+
2805 coordinates = input_geojson[
"features"][0][
"geometry"][
"coordinates"]
+
2806 elif input_geojson[
"type"] ==
"Feature":
+
2807 coordinates = input_geojson[
"geometry"][
"coordinates"]
+
+
2809 input_geojson[
"features"][0][
"geometry"][
"type"]
+
2810 if input_geojson[
"type"] ==
"FeatureCollection"
+
2811 else input_geojson[
"geometry"][
"type"]
+
+
+
2814 if geometry_type ==
"MultiPolygon":
+
2815 first_coordinate = coordinates[0][0][
+
+
+
+
2819 first_coordinate = coordinates[0][0]
+
+
2821 if not is_valid_coordinate(first_coordinate):
+
2822 log.error(error_message)
+
2823 raise HTTPException(status_code=400, detail=error_message)
+
First off, We are really glad you're reading this, because we need volunteer developers to help improve the Field Mapping Tasking Manager (FMTM)! 
Thank you¶