Codeigniter 4 - Getting records from a Model and sending them to a View with Example Getting Records from Model - Use the get() method to retrieve records from the database. Example: namespace App\Models; use CodeIgniter\Model; class User extends Model { protected $table = 'users'; protected $primaryKey = 'id'; public function getUsers() { return $this->get();...

Codeigniter 4 - Updating and Deleting using model with Example Updating Data - Use the update() method to update existing data. Example: namespace App\Models; use CodeIgniter\Model; class User extends Model { protected $table = 'users'; protected $primaryKey = 'id'; public function updateUser($id, $data) { return $this->update($id, $data); } } Updating Data with Conditions - Use...

Codeigniter 4 - Query Buider with Model Query Builder with Model - Use the db property of the Model to access the Query Builder. Example: namespace App\Models; use CodeIgniter\Model; class User extends Model { protected $table = 'users'; protected $primaryKey = 'id'; public function getUsers() { return $this->db->table($this->table)->get(); } } Selecting Data - Use the...

Codeigniter 4 - Creating Models with Examples Creating a Basic Model - Create a new file in the app/Models directory. - Extend the CodeIgniter\Model class. - Define the table name and primary key. Example: namespace App\Models; use CodeIgniter\Model; class User extends Model { protected $table = 'users'; protected $primaryKey = 'id'; } Creating a Model...

Codeigniter 4 - Modeling Data and ORM (Object-Relational Mapping) with Example Modeling Data - In CodeIgniter 4, models are used to interact with the database. - Models can be used to perform CRUD (Create, Read, Update, Delete) operations. Creating a Model - Create a new file in the app/Models directory. - Extend the CodeIgniter\Model class....

Codeigniter 4 - InComing Request Class with Example Incoming Request Class - The Incoming Request class provides methods to retrieve information about the incoming request. - It can be accessed using the request() function. Retrieving Request Headers - Use the getHeader() method to retrieve a specific request header. Example: $header = request()->getHeader('Content-Type'); Retrieving Request Body...

Codeigniter 4 - Database Meta Data with Example Database Metadata - Database metadata refers to the data that describes the structure and organization of a database. - In CodeIgniter 4, you can use the db() function to retrieve metadata about your database. Listing Tables - Use the list_tables() method to retrieve a list of tables...

Codeigniter 4 - Method Chaining with Example Method Chaining - Method chaining is a technique used to call multiple methods on an object in a single statement. - In CodeIgniter 4, method chaining is used extensively in the Query Builder and other classes. Query Builder Method Chaining - Use method chaining to build complex queries....

Codeigniter 4 - Query builder - select, where, where_in, where_not_in, with and or, like, or_like, not_like, having, group by, insert, update, update_batch, delete in codeigniter 4 with examples SELECT - Use the select() method to specify the columns to retrieve. Example: $db->select('name, email')->from('my_table')->get(); WHERE - Use the where() method to filter data based on conditions....

Codeigniter 4 - Query Helper Methods with Example Query Helper Methods - The Query Helper provides a set of methods to assist with building and executing database queries. Minimum Query - Use the min() method to retrieve the minimum value of a column. Example: $db->min('age', 'my_table'); Maximum Query - Use the max() method to retrieve...