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Added support for self-referential many-to-many relationships in Eloquent.

This commit is contained in:
Taylor Otwell 2011-07-20 06:57:34 -07:00
parent b4c7dcb9ea
commit 17cc50375b
1 changed files with 7 additions and 3 deletions
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10
system/db/eloquent.php
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@ -264,9 +264,11 @@ public function belongs_to($model, $foreign_key = null)
* *
* @param string $model * @param string $model
* @param string $table * @param string $table
* @param string $foreign_key
* @param string $associated_key
* @return mixed * @return mixed
*/ */
public function has_and_belongs_to_many($model, $table = null) public function has_and_belongs_to_many($model, $table = null, $foreign_key = null, $associated_key = null)
{ {
$this->relating = __FUNCTION__; $this->relating = __FUNCTION__;
@ -283,11 +285,13 @@ public function has_and_belongs_to_many($model, $table = null)
$this->relating_table = $table; $this->relating_table = $table;
} }
$this->relating_key = strtolower(get_class($this)).'_id'; $this->relating_key = (is_null($foreign_key)) ? strtolower(get_class($this)).'_id' : $foreign_key;
$associated_key = (is_null($associated_key)) ? strtolower($model).'_id' : $associated_key;
return static::make($model) return static::make($model)
->select(array(static::table($model).'.*')) ->select(array(static::table($model).'.*'))
->join($this->relating_table, static::table($model).'.id', '=', $this->relating_table.'.'.strtolower($model).'_id') ->join($this->relating_table, static::table($model).'.id', '=', $this->relating_table.'.'.$associated_key)
->where($this->relating_table.'.'.$this->relating_key, '=', $this->id); ->where($this->relating_table.'.'.$this->relating_key, '=', $this->id);
} }