I would like to define the association of the following two tables in cakephp3.
Table 1: Users Table
Table that defines user characteristics.
Table 2: languages table
Master table that defines the programming language.
The users table has columns main_language and sub_language that refer to the id defined in the languages table.
In this case, how should I define the association in cakephp3?I look forward to your kind cooperation.
cakephp
Table class corresponding to the users table UsersTable, language table corresponding Table classLanguagesTable is already defined.
For question table design, the relationship between users→language is belongsTo.
belongsTo association|Association - Connecting models to each other - 3.5
Define the relationship in the initialize() method in UsersTable as follows:
class UsersTable extensions Table
{
public function initialize (array$config)
{
// ...
$this->belongsTo('MainLanguage', [//Relation name (any name))
'className' = > 'Languages', // Destination table class name
'foreignKey' = > 'main_language', // The name of the foreign key on the table in question
'propertyName' = > 'main_language_obj', // property name to be associated when entityized (any name specified)
]);
$this->belongsTo('SubLanguage',[
'className' = > 'Languages',
'foreignKey' = > 'sub_language',
'propertyName' = > 'sub_language_obj',
]);
}
}
By making the above specification, you can retrieve it as follows:
$user=$this->Users->find('all')
->contain(['MainLanguage', 'SubLanguage') // Remember the contain clause
->first();
// See languages.name in main_language
$user->main_language_obj->name;
// See languages.name in sub_language
$user->sub_language_obj->name;
In addition, main_language, sub_language which is an external key to the users table should be main_language_id, sub_language_id, sub_language_id, and used the property name naturally.
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