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Adding Set::combine to allow mapping of keys and values of an array using paths

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git-svn-id: https://svn.cakephp.org/repo/branches/1.2.x.x@5369 3807eeeb-6ff5-0310-8944-8be069107fe0
This commit is contained in:
mariano.iglesias 2007-06-30 22:34:47 +00:00
parent 5e2b574e2f
commit 61df674db5
2 changed files with 129 additions and 0 deletions
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35
cake/libs/set.php
View file

@ -603,6 +603,41 @@ class Set extends Object {
}
return $list;
}
/**
* Creates an associative array using a $path1 as the path to build its keys, and optionally
* $path2 as path to get the values. If $path2 is not specified, all values will be initialized
* to null (useful for Set::merge).
*
* @param array $data Array from where to extract keys and values
* @param mixed $path1 As an array, or as a dot-separated string.
* @param mixed $path2 As an array, or as a dot-separated string.
* @return array Combined array
* @access public
*/
function combine($data, $path1 = null, $path2 = null) {
if (is_a($this, 'set') && is_string($data) && empty($path2)) {
$path2 = $path1;
$path1 = $data;
$data = $this->get();
}
if (is_object($data)) {
$data = get_object_vars($data);
}
$data1 = Set::extract($data, $path1);
if (!empty($path2)) {
$data2 = Set::extract($data, $path2);
} else {
$count = count($data1);
for($i=0; $i < $count; $i++) {
$data2[$i] = null;
}
}
return array_combine($data1, $data2);
}
function reverse($object) {
if (is_object($object)) {

94
cake/tests/cases/libs/set.test.php
View file

@ -275,6 +275,100 @@ class SetTest extends UnitTestCase {
$this->assertTrue($set->insert('Session Test.Test Case', "test"));
$this->assertTrue($set->check('Session Test.Test Case'));
}
function testCombine() {
$a = array(
array('User' => array(
'id' => 2,
'Data' => array(
'user' => 'mariano.iglesias',
'name' => 'Mariano Iglesias'
)
)),
array('User' => array(
'id' => 14,
'Data' => array(
'user' => 'phpnut',
'name' => 'Larry E. Masters'
)
)),
array('User' => array(
'id' => 25,
'Data' => array(
'user' => 'gwoo',
'name' => 'The Gwoo'
)
))
);
$result = Set::combine($a, '{n}.User.id');
$expected = array(
2 => null,
14 => null,
25 => null
);
$this->assertIdentical($result, $expected);
$result = Set::combine($a, '{n}.User.id', '{n}.User.Data');
$expected = array(
2 => array(
'user' => 'mariano.iglesias',
'name' => 'Mariano Iglesias'
),
14 => array(
'user' => 'phpnut',
'name' => 'Larry E. Masters'
),
25 => array(
'user' => 'gwoo',
'name' => 'The Gwoo'
)
);
$this->assertIdentical($result, $expected);
$result = Set::combine($a, '{n}.User.id', '{n}.User.Data.name');
$expected = array(
2 => 'Mariano Iglesias',
14 => 'Larry E. Masters',
25 => 'The Gwoo'
);
$this->assertIdentical($result, $expected);
$Set =& new Set($a);
$result = $Set->combine('{n}.User.id');
$expected = array(
2 => null,
14 => null,
25 => null
);
$this->assertIdentical($result, $expected);
$result = $Set->combine('{n}.User.id', '{n}.User.Data');
$expected = array(
2 => array(
'user' => 'mariano.iglesias',
'name' => 'Mariano Iglesias'
),
14 => array(
'user' => 'phpnut',
'name' => 'Larry E. Masters'
),
25 => array(
'user' => 'gwoo',
'name' => 'The Gwoo'
)
);
$this->assertIdentical($result, $expected);
$result = $Set->combine('{n}.User.id', '{n}.User.Data.name');
$expected = array(
2 => 'Mariano Iglesias',
14 => 'Larry E. Masters',
25 => 'The Gwoo'
);
$this->assertIdentical($result, $expected);
}
}
?>