I have this association in model that i want to save:
$this->belongsToMany('Tags', [
'className' => 'Tags',
'joinTable' => 'tags_associations',
'foreignKey' => 'foreign_key',
'targetForeignKey' => 'tag_id'
]);
I want to save in associated table tags_associations 2 records which have same Tags.id but different _joinData value. This is an example
object(Companies\Model\Entity\Company) {
'id' => (int) 765,
'tags' => [
(int) 0 => object(Cake\ORM\Entity) {
'id' => (int) 2,
'tag_category_id' => (int) 1,
'level' => (int) 1,
'parent_id' => (int) 1,
'lft' => (int) 2,
'rght' => (int) 135,
'tag_name' => 'Abbigliamento',
'slug' => 'abbigliamento',
'description' => null,
'created' => object(Cake\I18n\Time) {
'time' => '2015-10-04T17:56:02+0200',
'timezone' => 'Europe/Rome',
'fixedNowTime' => false
},
'modified' => object(Cake\I18n\Time) {
'time' => '2015-10-05T10:03:53+0200',
'timezone' => 'Europe/Rome',
'fixedNowTime' => false
},
'_joinData' => object(Cake\ORM\Entity) {
'model' => 'Companies',
'tag_group_id' => (int) 2,
'[new]' => true,
'[accessible]' => [
'*' => true
],
'[dirty]' => [
'model' => true,
'tag_group_id' => true
],
'[original]' => [],
'[virtual]' => [],
'[errors]' => [],
'[repository]' => 'TagsAssociations'
},
'[new]' => false,
'[accessible]' => [
'*' => true
],
'[dirty]' => [
'_joinData' => true
],
'[original]' => [
'_joinData' => object(Cake\ORM\Entity) {
'model' => 'Companies',
'tag_group_id' => (int) 1,
'[new]' => true,
'[accessible]' => [
'*' => true
],
'[dirty]' => [
'model' => true,
'tag_group_id' => true
],
'[original]' => [],
'[virtual]' => [],
'[errors]' => [],
'[repository]' => 'TagsAssociations'
}
],
'[virtual]' => [],
'[errors]' => [],
'[repository]' => 'Tags'
},
(int) 1 => object(Cake\ORM\Entity) {
'id' => (int) 2,
'tag_category_id' => (int) 1,
'level' => (int) 1,
'parent_id' => (int) 1,
'lft' => (int) 2,
'rght' => (int) 135,
'tag_name' => 'Abbigliamento',
'slug' => 'abbigliamento',
'description' => null,
'created' => object(Cake\I18n\Time) {
'time' => '2015-10-04T17:56:02+0200',
'timezone' => 'Europe/Rome',
'fixedNowTime' => false
},
'modified' => object(Cake\I18n\Time) {
'time' => '2015-10-05T10:03:53+0200',
'timezone' => 'Europe/Rome',
'fixedNowTime' => false
},
'_joinData' => object(Cake\ORM\Entity) {
'model' => 'Companies',
'tag_group_id' => (int) 2,
'[new]' => true,
'[accessible]' => [
'*' => true
],
'[dirty]' => [
'model' => true,
'tag_group_id' => true
],
'[original]' => [],
'[virtual]' => [],
'[errors]' => [],
'[repository]' => 'TagsAssociations'
},
'[new]' => false,
'[accessible]' => [
'*' => true
],
'[dirty]' => [
'_joinData' => true
],
'[original]' => [
'_joinData' => object(Cake\ORM\Entity) {
'model' => 'Companies',
'tag_group_id' => (int) 1,
'[new]' => true,
'[accessible]' => [
'*' => true
],
'[dirty]' => [
'model' => true,
'tag_group_id' => true
],
'[original]' => [],
'[virtual]' => [],
'[errors]' => [],
'[repository]' => 'TagsAssociations'
}
],
'[virtual]' => [],
'[errors]' => [],
'[repository]' => 'Tags'
}
],
}
In my example only second entity is kept in tags_association table.
You use use the through option from http://book.cakephp.org/3.0/en/orm/associations.html#using-the-through-option
class StudentsTable extends Table
{
public function initialize(array $config)
{
$this->belongsToMany('Courses', [
'through' => 'CourseMemberships',
]);
}
}
class CoursesTable extends Table
{
public function initialize(array $config)
{
$this->belongsToMany('Students', [
'through' => 'CourseMemberships',
]);
}
}
class CoursesMembershipsTable extends Table
{
public function initialize(array $config)
{
$this->belongsTo('Students');
$this->belongsTo('Courses');
}
}
Now the CourseMemberships model is a individual model, and you can create as many as you want.
Finally, I have resolved with another association
$this->belongsToMany('Tags', [
'className' => 'Tags',
'joinTable' => 'tags_associations',
'foreignKey' => 'foreign_key',
'targetForeignKey' => 'tag_id',
]);
$this->belongsToMany('TagsSecondary', [
'className' => 'Tags',
'joinTable' => 'tags_associations',
'foreignKey' => 'foreign_key',
'targetForeignKey' => 'tag_id',
'saveStrategy' => 'append'
]);
First i save Tags with tag_group_id = 1 with Tags Associations and after those with tag_group_id = 2 with TagsSecondary, that has append as saveStrategy.
You can load the model in your controller
$this->loadModel('tagAssociations');
and after that you can create new entity from this table, patch it and finally save it.
//saving tags
$tagAssociation = $this->tagAssociations->newEntity();
//$handling $data
$tagAssociation = $this->tagAssociations->patchEntity($tagAssociation , $data);
$this->tagAssociations->save($tagAssociation );
It's the best solution i have found.