deon/phptsmadmin
Archived
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

Enhancements to Kohana ORM

Browse Source 
Enhancements to include multiple primary keys in remote joins, added option to suppress table names in joins
More enhancements to ORM specific from TSM
This commit is contained in:
Deon George 2011-04-06 09:06:27 +10:00
parent 2c15a4b40e
commit 939d0a43d6
1 changed files with 51 additions and 21 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

48
includes/kohana/modules/orm/classes/kohana/orm.php
View File

@ -66,6 +66,12 @@ class Kohana_ORM {
// Model configuration
protected $_table_names_plural = TRUE;
protected $_reload_on_wakeup = TRUE;
// Suppress ORMs inclusion of <table_name>.*
protected $_disable_wild_select = FALSE;
// Suppress ORMs inclusion of <table_name>. to column joins
protected $_disable_join_table_name = FALSE;
// Suppress ORMs use of limit
protected $_disable_limit = FALSE;
// Database configuration
protected $_db = NULL;
@ -327,7 +333,7 @@ class Kohana_ORM {
$model = $this->_related($column);
// Use this model's column and foreign model's primary key
$col = $model->_table_name.'.'.$model->_primary_key;
$col = ($this->_disable_join_table_name ? '' : $model->_table_name.'.').$model->_primary_key;
$val = $this->_object[$this->_belongs_to[$column]['foreign_key']];
$model->where($col, '=', $val)->find();
@ -339,7 +345,7 @@ class Kohana_ORM {
$model = $this->_related($column);
// Use this model's primary key value and foreign model's column
$col = $model->_table_name.'.'.$this->_has_one[$column]['foreign_key'];
$col = ($this->_disable_join_table_name ? '' : $model->_table_name.'.').$this->_has_one[$column]['foreign_key'];
$val = $this->pk();
$model->where($col, '=', $val)->find();
@ -350,31 +356,54 @@ class Kohana_ORM {
{
$model = ORM::factory($this->_has_many[$column]['model']);
if (! is_array($this->_has_many[$column]['foreign_key']))
{
if (isset($this->_has_many[$column]['through']))
{
// Grab has_many "through" relationship table
$through = $this->_has_many[$column]['through'];
// Join on through model's target foreign key (far_key) and target model's primary key
$join_col1 = $through.'.'.$this->_has_many[$column]['far_key'];
$join_col2 = $model->_table_name.'.'.$model->_primary_key;
$join_col1 = ($this->_disable_join_table_name ? '' : $through.'.').$this->_has_many[$column]['far_key'];
$join_col2 = ($this->_disable_join_table_name ? '' : $model->_table_name.'.').$model->_primary_key;
$model->join($through)->on($join_col1, '=', $join_col2);
// Through table's source foreign key (foreign_key) should be this model's primary key
$col = $through.'.'.$this->_has_many[$column]['foreign_key'];
$col = ($this->_disable_join_table_name ? '' : $through.'.').$this->_has_many[$column]['foreign_key'];
$val = $this->pk();
}
else
{
// Simple has_many relationship, search where target model's foreign key is this model's primary key
$col = $model->_table_name.'.'.$this->_has_many[$column]['foreign_key'];
$col = ($this->_disable_join_table_name ? '' : $model->_table_name.'.').$this->_has_many[$column]['foreign_key'];
$val = $this->pk();
}
return $model->where($col, '=', $val);
}
else
{
foreach ($this->_has_many[$column]['foreign_key'] as $fk)
{
if (isset($this->_has_many[$column]['through']))
{
throw new Kohana_Exception('This code hasnt been written yet!');
}
else
{
// Simple has_many relationship, search where target model's foreign key is this model's primary key
$col = ($this->_disable_join_table_name ? '' : $model->_table_name.'.').$fk;
$val = $this->_object[$fk];
}
$model = $model->where($col, '=', $val);
}
return $model;
}
}
else
{
throw new Kohana_Exception('The :property property does not exist in the :class class',
array(':property' => $column, ':class' => get_class($this)));
@ -763,7 +792,7 @@ class Kohana_ORM {
if ($id !== NULL)
{
// Search for a specific column
$this->_db_builder->where($this->_table_name.'.'.$this->_primary_key, '=', $id);
$this->_db_builder->where(($this->_disable_join_table_name ? '' : $this->_table_name.'.').$this->_primary_key, '=', $id);
}
return $this->_load_result(FALSE);
@ -1260,13 +1289,14 @@ class Kohana_ORM {
{
$this->_db_builder->from($this->_table_name);
if ($multiple === FALSE)
if ($multiple === FALSE AND ! $this->_disable_limit)
{
// Only fetch 1 record
$this->_db_builder->limit(1);
}
// Select all columns by default
if (! $this->_disable_wild_select)
$this->_db_builder->select($this->_table_name.'.*');
if ( ! isset($this->_db_applied['order_by']) AND ! empty($this->_sorting))
@ -1276,7 +1306,7 @@ class Kohana_ORM {
if (strpos($column, '.') === FALSE)
{
// Sorting column for use in JOINs
$column = $this->_table_name.'.'.$column;
$column = ($this->_disable_join_table_name ? '' : $this->_table_name.'.').$column;
}
$this->_db_builder->order_by($column, $direction);