5.build-model.md

Create a crude model

• app/code/{Vendor}/{ModuleName}/Model/{YourModel}.php
• app/code/{Vendor}/{ModuleName}/Model/ResourceModel/{YourResourceModelName}.php
• app/code/{Vendor}/{ModuleName}/Model/ResourceModel/{YourResourceModelName}/Collection.php

Create Model Class

file Location: app/code/{Vendor}/{ModuleName}/Model/{YourModel}.php

Format

<?php

/**
 * Create model  name of Student
 */
namespace {Vendor}\{ModuleName}\Model;


class {YourModel} extends \Magento\Framework\Model\AbstractModel
{
    /**
     * Map Resource Class At Model lass
     */
    public function _construct()
    {
        $this->_init(\{Vendor}\{ModuleName}\Model\ResourceModel\{YourModel}::class);
    }
}

Example: A model name is Student

file Location: app/code/StackExchange/Example/Model/Student.php

<?php

/**
 * Create model  name of Student
 */
namespace StackExchange\Example\Model;


class Student extends \Magento\Framework\Model\AbstractModel
{
    /**
     * Map Resource Class At Model lass
     */
    public function _construct()
    {
        $this->_init(\StackExchange\Example\Model\ResourceModel\Student::class);
    }
}

Create Resource Model Class

file Location: app/code/{Vendor}/{ModuleName}/Model/ResourceModel/{YourResourceModelName}.php

Format

<?php

/**
 * Create Resource Model name for model  Student \StackExchange\Example\Model\Student
 * As Model name Student then Resource model is Student
 */

namespace {Vendor}\{ModuleName}\Model\ResourceModel;


class {YourResourceModelName} extends \Magento\Framework\Model\ResourceModel\Db\AbstractDb
{
    
    /**
     * Define table for this Resource model
     * @return void
     */
    public function _construct()
    {
       $this->_init('{DatabaseTableName}', '{Primary_key}');
    }

}

Example: A ResourceModel Class name is Student

file Location: app/code/StackExchange/Example/Model/ResourceModel/Student.php

<?php

/**
 * Create Resource Model name for model  Student \StackExchange\Example\Model\Student
 * As Model name Student then Resource model is Student
 */

namespace StackExchange\Example\Model\ResourceModel;


class Student extends \Magento\Framework\Model\ResourceModel\Db\AbstractDb
{
    
    /**
     * Define table for this Resource model
     * @return void
     */
    public function _construct()
    {
       $this->_init('example', 'id');
    }

}

Create Collection Class

file Location: app/code/{Vendor}/{ModuleName}/Model/ResourceModel/{YourResourceModelName}/Collection.php

Format

<?php

namespace {Vendor}\{ModuleName}\Model\ResourceModel\{YourResourceModelName};


class Collection extends \Magento\Framework\Model\ResourceModel\Db\Collection\AbstractCollection
{
    
   /**
    * Map Model CLass and Resource mode Class at COllection Class
    */
    public function _construct()
    {
        $this->_init(
                \{Vendor}\{ModuleName}\Model\{YourModel}::class,
                 \{Vendor}\{ModuleName}\Model\ResourceModel\{YourResourceModelName}::class
                );
    }
    
}

Example: A Collection class for is Student

file Location: /app/code/StackExchange/Example/Model/ResourceModel/Student/Collection.php

<?php

/*
  * Collection Model Class .As Model and Resource model Class Name is Student
 *  That create name student folder at StackExchange\Example\Model\ResourceModel
 */

namespace StackExchange\Example\Model\ResourceModel\Student;


class Collection extends \Magento\Framework\Model\ResourceModel\Db\Collection\AbstractCollection
{
    
   /**
    * Map Model CLass and Resource mode Class at COllection Class
    */
    public function _construct()
    {
        $this->_init(
                \StackExchange\Example\Model\Student::class,
                 \StackExchange\Example\Model\ResourceModel\Student::class
                );
    }
    
}