WordPress ActiveRecord

WordPress ActiveRecord implements the active record pattern to easily retrieve, update and delete rows of database tables without struggling with raw SQL query strings. The goal of this library is to provide a small but yet powerful ORM for the CMS WordPress, which should be easy to implement. Therefore it only consists of two classes: ActiveRecord and Query:

• The ActiveRecord class maps rows to object instances and the columns to object properties.
• The Query class provides a fluent interface to create sql queries.

Usage

You can use the library in your plugin or directly in your functions.php file. All you have to do is to require the ActiveRecord class and define your model classes (e.g. Slideshow):

require 'wp-activerecord/ActiveRecord.php';

// create a model class for the table {wp-prefix}slideshows 
class Slideshow extends \wp_activerecord\ActiveRecord {
    protected static $table_name = 'slideshows';
}

With this you can create new rows, update and save them like this:

// create
$slideshow = Slideshow::create([
    'title'        => 'Header slideshow',
    'slide_time'   => 3000,
    'slide_effect' => 'fade'
]);

// retrieve by id
$slideshow = Slideshow::get(1);

// update
$slideshow->title = 'New title';
$slideshow->slide_effect = 'slide';
$slideshow->save();

API

• Class ActiveRecord
  • Static methods
    • Method create([$attributes])
    • Method delete_by_id($id)
    • Method get([$id])
    • Method get_{type}_by_{column}($value [, $...])
    • Method get_table_name()
    • Method insert($data)
    • Method query()
    • Method update($column [, $value])
    • Method wpdb()
  • Instance methods
    • Method delete()
    • Method save()
  • Event methods
    • Method save_pre($isNew)
    • Method save_post($isNew)
    • Method delete_pre()
    • Method delete_post()
• Class Query
  • Static methods
    • Method wpdb()
  • Instance methods
    • Method select([$...])
    • Method delete()
    • Method update([$column [, $value]])
    • Method set($column [, $value])
    • Method insert($data)
    • Method where($column [, $type_or_value [, $value]])
    • Method and_where($column [, $type_or_value [, $value]])
    • Method or_where($column [, $type_or_value [, $value]])
    • Method group_by($column [, $order])
    • Method having($column [, $type_or_value [, $value]])
    • Method and_having($column [, $type_or_value [, $value]])
    • Method or_having($column [, $type_or_value [, $value]])
    • Method order_by($column [, $order])
    • Method limit($limit)
    • Method offset($offset)
    • Method join($table, $attribute, $foreign_attribute [, $type])
    • Method sql()
    • Method get_results()
    • Method get_row()
    • Method get_col()
    • Method get_var()
    • Method get()
    • Method get_one()
    • Method execute()

Class ActiveRecord

Static Methods

Method create([$attributes])

Create a model with an array of attributes

Example:

$activeRecord = Table::create();
// or
$activeRecord = Table::create([
   'name'  => 'wp-activerecord',
   'title' => 'WordPress ActiveRecord'
]);

Method delete_by_id($id)

Delete a row by id

Example:

Table::delete_by_id(3);

Method get([$id])

Get all model instances or a model instance by id

Example:

$activeRecords = Table::get(); // all records
$activeRecord = Table::get(3); // one record by id

Method get_{type}_by_{column}($value [, $...])

Dynmamic finder method: Get a var, rows, results or model instances

Example:

$activeRecord = Table::get_one_by_title('WordPress');
$array = Table::get_by_name_or_title('wp-activerecord', 'WP');
$row = Table::get_row_by_name_and_title('wp', 'WP');
$var = Table::get_var_name_by_id(3);

Method get_table_name()

Get the table name

Example:

$table_name = Table::get_table_name();

Method insert($data)

Insert one or multiple rows into the database

Example:

$last_insert_id = Table::insert([
   'name'  => 'wp-activerecord',
   'title' => 'WordPress ActiveRecord'
]);
// or
$last_insert_id = Table::insert([[
   'name'  => 'ActiveRecord',
   'title' => 'Class ActiveRecord'
], [
   'name'  => 'Query',
   'title' => 'Class Query'
]]);

Method query()

Get a query instance

Example:

$query = Table::query();

Method update($column [, $value])

Shortcut method for creating a query instance and calling update on it

Example:

$query = Table::update('name', 'wp-activerecord-updated');
// or
$query = Table::update([
   'name'  => 'wp-activerecord-updated',
   'title' => 'Updated WordPress ActiveRecord'
]);

Method wpdb()

Get the wpdb instance

Example:

$wpdb = Table::wpdb();

// use case:
$userInput = '20%';
Table::query()
  ->delete()
  ->where('name', 'like', '%' . Table::wpdb()->esc_like($userInput) . '%')
  ->execute();

Instance methods

Method delete()

Delete the model

Example:

$activeRecord->delete();

Method save()

Save the model

Example:

$activeRecord->save();

Event methods

Method save_pre($isNew)

Called before saving the model

Example:

// in your derived class:
protected function save_pre($isNew) {
    $this->new = $isNew ? 1 : 0;
}

Method save_post($isNew)

Called after saving the model

Example:

// in your derived class:
protected function save_post($isNew) {
    // do something with $this
}

Method delete_pre()

Called before deleting the model

Example:

// in your derived class:
protected function delete_pre() {
    // do something with $this
}

Method delete_post()

Called after deleting the model

Example:

// in your derived class:
protected function delete_post() {
    // do something with $this
}

Class Query

Static Methods

Method wpdb()

Get the wpdb instance

Example:

$wpdb = Query::wpdb();

Instance Methods

Select rows

Method select([$...])

Example:

$activeRecord = Table::query()
  ->select('id', 'name')
  ->get();

Method delete()

Delete rows

Example:

Table::query()
  ->delete()
  ->where('name', 'wp')
  ->execute();

Method update([$column [, $value]])

Update rows (Alias for \wp_activerecord\Query::set)

Example:

Table::query()
  ->update()
  ->set('name', 'wp')
  ->execute();
// or
Table::query()
  ->update('name', 'wp')
  ->execute();
// or
Table::query()
  ->update([
    'name'  => 'wp',
    'title' => 'WordPress'
  ])
  ->execute();

Method set($column [, $value])

Set columns, which should be updated

Example:

Table::query()
  ->set('name', 'wp')
  ->execute();
// or
Table::query()
  ->set([
    'name'  => 'wp',
    'title' => 'WordPress'
  ])
  ->execute();

Method insert($data)

Insert rows

Example:

Table::query()
  ->insert([
    'name'  => 'wp',
    'title' => 'WordPress'
  ])
  ->execute();
// or
Table::query
  ->insert([[
    'name'  => 'ActiveRecord',
    'title' => 'Class ActiveRecord'
  ], [
    'name'  => 'Query',
    'title' => 'Class Query'
  ]])
  ->execute();

Method where($column [, $type_or_value [, $value]])

Add a where condition

Example:

$activeRecords = Table::query()
  ->where('name', 'wp')
  ->where('title', 'LIKE', '%active%')
  ->where([
    'start' => 12,
    'end'   => 37
  ])
  ->where('value', '>', ['RAND()']) // raw value wrapped in array
  ->where('numbers', 'in', [[1, 2, 3]] // a array as raw value will be joined
  ->get();

Method and_where($column [, $type_or_value [, $value]])

Alias for where.

Method or_where($column [, $type_or_value [, $value]])

Alias for where, but adds a new group to the where clause, which will be added with the keyword OR

Method group_by($column [, $order])

Add a group by section

Example:

$activeRecords = Table::query()
  ->group_by('name', 'asc')
  ->get();

Method having($column [, $type_or_value [, $value]])

Add a having condition

Example:

$activeRecords = Table::query()
  ->group_by('name')
  ->having(["SUM(price)"], ">", 10) // raw column value wrapped in array
  ->get();

Method and_having($column [, $type_or_value [, $value]])

Alias for having.

Method or_having($column [, $type_or_value [, $value]])

Alias for having, but adds a new group to the having clause, which will be added with the keyword OR

Method order_by($column [, $order])

Add a order by section

Example:

$activeRecords = Table::query()
  ->order_by('description')
  ->order_by('name', 'desc')
  ->get();

Method limit($limit)

Add a limit

Example:

$activeRecords = Table::query()
  ->limit(5)
  ->get();

Method offset($offset)

Add a offset

Example:

$activeRecords = Table::query()
  ->offset(10)
  ->get();

Method join($table, $attribute, $foreign_attribute [, $type])

Add a join condition

Example:

$activeRecords = Table::query()
  ->join('OtherTable', 'id', 'table_id')
  ->get();

Method sql()

Create the final sql statement

Example:

$sql = Table::query()
  ->select('description')
  ->where('description', 'like', 'Title: %')
  ->sql();

Method get_results()

Get the results of the query

Example:

$results = Table::query()
  ->get_results();

Method get_row()

Get the row of the query

Example:

$row = Table::query()
  ->where('name', 'this is a unique name')
  ->get_row();

Method get_col()

Get the column of the query

Example:

$descriptions = Table::query()
  ->select('description')
  ->get_col();

Method get_var()

Get the value of the query

Example:

$description = Table::query()
  ->select('description')
  ->where('name', 'this is a unique name')
  ->get_var();

Method get()

Get the results of the query as an array of model instances

Example:

$activeRecords = Table::query()
  ->get();

Method get_one()

Get the results of the query as a model instances

Example:

$activeRecord = Table::query()
  ->where('name', 'this is a unique name')
  ->get_one();

Method execute()

Execute the query

Example:

Table::query()
  ->delete()
  ->where('name', 'this is a unique name')
  ->execute();

License

This code is licensed under the MIT license.