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database refactoring.

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This commit is contained in:
Taylor Otwell
2011-08-01 17:58:20 -05:00
parent 829088f3d1
commit badc8a6088
11 changed files with 544 additions and 536 deletions
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37
system/db/eloquent/hydrator.php
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@@ -1,13 +1,11 @@
<?php namespace System\DB\Eloquent;
use System\DB\Eloquent;
class Hydrator {
/**
* Load the array of hydrated models and their eager relationships.
*
* @param object $eloquent
* @param Model $eloquent
* @return array
*/
public static function hydrate($eloquent)
@@ -68,8 +66,6 @@ class Hydrator {
*/
private static function eagerly($eloquent, &$parents, $include)
{
// Get the relationship Eloquent model.
//
// We temporarily spoof the belongs_to key to allow the query to be fetched without
// any problems, since the belongs_to method actually gets the attribute.
$eloquent->attributes[$spoof = $include.'_id'] = 0;
@@ -79,9 +75,7 @@ class Hydrator {
unset($eloquent->attributes[$spoof]);
// Reset the WHERE clause and bindings on the query. We'll add our own WHERE clause soon.
$relationship->query->where = 'WHERE 1 = 1';
$relationship->query->bindings = array();
$relationship->query->reset_where();
// Initialize the relationship attribute on the parents. As expected, "many" relationships
// are initialized to an array and "one" relationships are initialized to null.
@@ -90,21 +84,13 @@ class Hydrator {
$parent->ignore[$include] = (in_array($eloquent->relating, array('has_many', 'has_and_belongs_to_many'))) ? array() : null;
}
if ($eloquent->relating == 'has_one')
if (in_array($relating = $eloquent->relating, array('has_one', 'has_many', 'belongs_to')))
{
static::eagerly_load_one($relationship, $parents, $eloquent->relating_key, $include);
}
elseif ($eloquent->relating == 'has_many')
{
static::eagerly_load_many($relationship, $parents, $eloquent->relating_key, $include);
}
elseif ($eloquent->relating == 'belongs_to')
{
static::eagerly_load_belonging($relationship, $parents, $eloquent->relating_key, $include);
return static::$relating($relationship, $parents, $eloquent->relating_key, $include);
}
else
{
static::eagerly_load_many_to_many($relationship, $parents, $eloquent->relating_key, $eloquent->relating_table, $include);
static::has_and_belongs_to_many($relationship, $parents, $eloquent->relating_key, $eloquent->relating_table, $include);
}
}
@@ -118,7 +104,7 @@ class Hydrator {
* @param string $include
* @return void
*/
private static function eagerly_load_one($relationship, &$parents, $relating_key, $include)
private static function has_one($relationship, &$parents, $relating_key, $include)
{
foreach ($relationship->where_in($relating_key, array_keys($parents))->get() as $key => $child)
{
@@ -136,7 +122,7 @@ class Hydrator {
* @param string $include
* @return void
*/
private static function eagerly_load_many($relationship, &$parents, $relating_key, $include)
private static function has_many($relationship, &$parents, $relating_key, $include)
{
foreach ($relationship->where_in($relating_key, array_keys($parents))->get() as $key => $child)
{
@@ -153,7 +139,7 @@ class Hydrator {
* @param string $include
* @return void
*/
private static function eagerly_load_belonging($relationship, &$parents, $relating_key, $include)
private static function belongs_to($relationship, &$parents, $relating_key, $include)
{
$keys = array();
@@ -184,14 +170,17 @@ class Hydrator {
*
* @return void
*/
private static function eagerly_load_many_to_many($relationship, &$parents, $relating_key, $relating_table, $include)
private static function has_and_belongs_to_many($relationship, &$parents, $relating_key, $relating_table, $include)
{
// The model "has and belongs to many" method sets the SELECT clause; however, we need
// to clear it here since we will be adding the foreign key to the select.
$relationship->query->select = null;
$relationship->query->where_in($relating_table.'.'.$relating_key, array_keys($parents));
// The foreign key is added to the select to allow us to easily match the models back to their parents.
$children = $relationship->query->get(array(Eloquent::table(get_class($relationship)).'.*', $relating_table.'.'.$relating_key));
// Otherwise, there would be no apparent connection between the models to allow us to match them.
$children = $relationship->query->get(array(Model::table(get_class($relationship)).'.*', $relating_table.'.'.$relating_key));
$class = get_class($relationship);