2008-08-11 01:17:51 +02:00
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<?php
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2008-08-17 03:08:10 +02:00
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2009-11-21 03:29:59 +01:00
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require_once 'thirdparty/spyc/spyc.php';
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2008-08-17 03:08:10 +02:00
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2008-08-11 01:17:51 +02:00
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/**
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* Uses the Spyc library to parse a YAML document (see http://yaml.org).
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* YAML is a simple markup languages that uses tabs and colons instead of the more verbose XML tags,
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* and because of this much better for developers creating files by hand.
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*
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* The contents of the YAML file are broken into three levels:
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* - Top level: class names - Page and ErrorPage. This is the name of the dataobject class that should be created.
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* The fact that ErrorPage is actually a subclass is irrelevant to the system populating the database.
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* Each identifier you specify delimits a new database record.
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* This means that every record needs to have an identifier, whether you use it or not.
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* - Third level: fields - each field for the record is listed as a 3rd level entry.
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2012-01-10 04:11:25 +01:00
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* In most cases, the field<EFBFBD>s raw content is provided.
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2008-08-11 01:17:51 +02:00
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* However, if you want to define a relationship, you can do so using "=>"
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*
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* There are a couple of lines like this:
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2010-04-23 02:11:41 +02:00
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* <code>
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* Parent: =>Page.about
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* </code>
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2012-01-10 04:11:25 +01:00
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* This will tell the system to set the ParentID database field to the ID of the Page object with the identifier <EFBFBD>about<EFBFBD>.
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2008-08-11 01:17:51 +02:00
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* This can be used on any has-one or many-many relationship.
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* Note that we use the name of the relationship (Parent), and not the name of the database field (ParentID)
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*
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* On many-many relationships, you should specify a comma separated list of values.
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2010-04-23 02:11:41 +02:00
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* <code>
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* MyRelation: =>Class.inst1,=>Class.inst2,=>Class.inst3
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* </code>
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*
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2008-08-11 01:17:51 +02:00
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* An crucial thing to note is that the YAML file specifies DataObjects, not database records.
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* The database is populated by instantiating DataObject objects, setting the fields listed, and calling write().
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* This means that any onBeforeWrite() or default value logic will be executed as part of the test.
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* This forms the basis of our testURLGeneration() test above.
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*
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* For example, the URLSegment value of Page.staffduplicate is the same as the URLSegment value of Page.staff.
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* When the fixture is set up, the URLSegment value of Page.staffduplicate will actually be my-staff-2.
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*
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* Finally, be aware that requireDefaultRecords() is not called by the database populator -
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* so you will need to specify standard pages such as 404 and home in your YAML file.
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*
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* <code>
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* Page:
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* home:
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* Title: Home
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* about:
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* Title: About Us
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* staff:
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* Title: Staff
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* URLSegment: my-staff
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* Parent: =>Page.about
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* staffduplicate:
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* Title: Staff
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* URLSegment: my-staff
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* Parent: =>Page.about
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* products:
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* Title: Products
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* ErrorPage:
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* 404:
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* Title: Page not Found
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* ErrorCode: 404
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* </code>
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*
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* @package sapphire
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* @subpackage core
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*
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2011-02-01 21:05:47 +01:00
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* @see http://code.google.com/p/spyc/
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2008-08-11 01:17:51 +02:00
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*
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* @todo Write unit test for YamlFixture
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*/
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class YamlFixture extends Object {
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/**
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2011-03-30 08:47:30 +02:00
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* Absolute path to the .yml fixture file
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2008-08-11 01:17:51 +02:00
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*
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* @var string
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*/
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protected $fixtureFile;
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/**
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* Array of fixture items
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*
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* @var array
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*/
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protected $fixtureDictionary;
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2011-03-30 08:47:30 +02:00
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/**
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* @param String Absolute file path, or relative path to {@link Director::baseFolder()}
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*/
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2008-08-11 01:17:51 +02:00
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function __construct($fixtureFile) {
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2011-03-30 08:47:30 +02:00
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if(!Director::is_absolute($fixtureFile)) $fixtureFile = Director::baseFolder().'/'. $fixtureFile;
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if(!file_exists($fixtureFile)) {
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throw new InvalidArgumentException('YamlFixture::__construct(): Fixture path "' . $fixtureFile . '" not found');
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2008-08-11 01:29:30 +02:00
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}
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2008-08-11 01:17:51 +02:00
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$this->fixtureFile = $fixtureFile;
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2011-03-30 08:47:30 +02:00
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2009-09-18 05:02:19 +02:00
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parent::__construct();
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2008-08-11 01:17:51 +02:00
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}
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2011-03-30 08:47:30 +02:00
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/**
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* @return String Absolute file path
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*/
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function getFixtureFile() {
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return $this->fixtureFile;
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}
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2008-08-11 01:17:51 +02:00
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/**
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* Get the ID of an object from the fixture.
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* @param $className The data class, as specified in your fixture file. Parent classes won't work
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* @param $identifier The identifier string, as provided in your fixture file
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*/
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2008-08-11 05:11:48 +02:00
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public function idFromFixture($className, $identifier) {
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2009-07-08 02:06:16 +02:00
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if(isset($this->fixtureDictionary[$className][$identifier])) {
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return $this->fixtureDictionary[$className][$identifier];
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} else {
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2009-07-08 04:36:05 +02:00
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return false;
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2009-07-08 02:06:16 +02:00
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}
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2008-08-11 01:17:51 +02:00
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}
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/**
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* Return all of the IDs in the fixture of a particular class name.
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*
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* @return A map of fixture-identifier => object-id
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*/
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2008-08-11 05:11:48 +02:00
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public function allFixtureIDs($className) {
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2009-07-08 02:06:16 +02:00
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if(isset($this->fixtureDictionary[$className])) {
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return $this->fixtureDictionary[$className];
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} else {
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2009-07-08 04:36:05 +02:00
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return false;
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2009-07-08 02:06:16 +02:00
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}
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2008-08-11 01:17:51 +02:00
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}
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/**
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* Get an object from the fixture.
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*
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* @param $className The data class, as specified in your fixture file. Parent classes won't work
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* @param $identifier The identifier string, as provided in your fixture file
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*/
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2008-08-11 05:11:48 +02:00
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public function objFromFixture($className, $identifier) {
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2008-08-11 07:16:08 +02:00
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$id = $this->idFromFixture($className, $identifier);
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if($id) return DataObject::get_by_id($className, $id);
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2008-08-11 01:17:51 +02:00
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}
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/**
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* Load a YAML fixture file into the database.
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2008-10-09 17:14:03 +02:00
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* Once loaded, you can use idFromFixture() and objFromFixture() to get items from the fixture.
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*
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* Caution: In order to support reflexive relations which need a valid object ID,
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* the record is written twice: first after populating all non-relational fields,
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* then again after populating all relations (has_one, has_many, many_many).
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2008-08-11 01:17:51 +02:00
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*/
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2011-05-01 07:33:02 +02:00
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public function saveIntoDatabase(DataModel $model) {
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2009-07-08 02:06:16 +02:00
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// We have to disable validation while we import the fixtures, as the order in
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// which they are imported doesnt guarantee valid relations until after the
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// import is complete.
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$validationenabled = DataObject::get_validation_enabled();
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DataObject::set_validation_enabled(false);
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2008-08-11 01:17:51 +02:00
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$parser = new Spyc();
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2011-03-30 08:47:30 +02:00
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$fixtureContent = $parser->loadFile($this->fixtureFile);
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2009-11-21 03:33:39 +01:00
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2008-08-11 01:17:51 +02:00
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$this->fixtureDictionary = array();
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foreach($fixtureContent as $dataClass => $items) {
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2008-11-11 00:18:31 +01:00
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if(ClassInfo::exists($dataClass)) {
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2011-05-01 07:33:02 +02:00
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$this->writeDataObject($model, $dataClass, $items);
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2008-11-11 00:18:31 +01:00
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} else {
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$this->writeSQL($dataClass, $items);
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}
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}
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2009-07-08 02:06:16 +02:00
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DataObject::set_validation_enabled($validationenabled);
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2008-11-11 00:18:31 +01:00
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}
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/**
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* Writes the fixture into the database using DataObjects
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*
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* @param string $dataClass
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* @param array $items
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*/
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2011-05-01 07:33:02 +02:00
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protected function writeDataObject($model, $dataClass, $items) {
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2008-11-11 00:18:31 +01:00
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foreach($items as $identifier => $fields) {
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2011-05-01 07:33:02 +02:00
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$obj = $model->$dataClass->newObject();
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2008-11-11 00:18:31 +01:00
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// If an ID is explicitly passed, then we'll sort out the initial write straight away
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// This is just in case field setters triggered by the population code in the next block
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// Call $this->write(). (For example, in FileTest)
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if(isset($fields['ID'])) {
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$obj->ID = $fields['ID'];
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2010-05-25 05:49:22 +02:00
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// The database needs to allow inserting values into the foreign key column (ID in our case)
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$conn = DB::getConn();
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2010-10-12 23:52:55 +02:00
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if(method_exists($conn, 'allowPrimaryKeyEditing')) $conn->allowPrimaryKeyEditing(ClassInfo::baseDataClass($dataClass), true);
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2008-11-11 00:18:31 +01:00
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$obj->write(false, true);
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2010-10-12 23:52:55 +02:00
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if(method_exists($conn, 'allowPrimaryKeyEditing')) $conn->allowPrimaryKeyEditing(ClassInfo::baseDataClass($dataClass), false);
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2008-11-11 00:18:31 +01:00
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}
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// Populate the dictionary with the ID
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2010-04-13 04:08:08 +02:00
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if($fields) foreach($fields as $fieldName => $fieldVal) {
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2008-11-11 00:18:31 +01:00
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if($obj->many_many($fieldName) || $obj->has_many($fieldName) || $obj->has_one($fieldName)) continue;
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$obj->$fieldName = $this->parseFixtureVal($fieldVal);
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}
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$obj->write();
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// has to happen before relations in case a class is referring to itself
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$this->fixtureDictionary[$dataClass][$identifier] = $obj->ID;
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// Populate all relations
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2010-04-13 04:08:08 +02:00
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if($fields) foreach($fields as $fieldName => $fieldVal) {
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2008-11-11 00:18:31 +01:00
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if($obj->many_many($fieldName) || $obj->has_many($fieldName)) {
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$parsedItems = array();
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2009-06-18 11:34:17 +02:00
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$items = preg_split('/ *, */',trim($fieldVal));
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2008-11-11 00:18:31 +01:00
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foreach($items as $item) {
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$parsedItems[] = $this->parseFixtureVal($item);
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}
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$obj->write();
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if($obj->has_many($fieldName)) {
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$obj->getComponents($fieldName)->setByIDList($parsedItems);
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} elseif($obj->many_many($fieldName)) {
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$obj->getManyManyComponents($fieldName)->setByIDList($parsedItems);
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2008-08-11 01:17:51 +02:00
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}
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2008-11-11 00:18:31 +01:00
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} elseif($obj->has_one($fieldName)) {
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2009-09-17 05:24:15 +02:00
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$obj->{$fieldName . 'ID'} = $this->parseFixtureVal($fieldVal);
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2008-08-11 01:17:51 +02:00
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}
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}
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2008-11-11 00:18:31 +01:00
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$obj->write();
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2012-01-10 01:24:31 +01:00
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//If LastEdited was set in the fixture, set it here
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if (array_key_exists('LastEdited', $fields)) {
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$manip = array($dataClass => array("command" => "update", "id" => $obj->id,
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2012-01-10 04:01:24 +01:00
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"fields" => array("LastEdited" => "'".$this->parseFixtureVal($fields['LastEdited'])."'")));
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2012-01-10 01:24:31 +01:00
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DB::manipulate($manip);
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}
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2008-11-11 00:18:31 +01:00
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}
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}
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/**
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* Writes the fixture into the database directly using a database manipulation
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*
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* @param string $table
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* @param array $items
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*/
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protected function writeSQL($table, $items) {
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foreach($items as $identifier => $fields) {
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$manipulation = array($table => array("fields" => array(), "command" => "insert"));
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foreach($fields as $fieldName=> $fieldVal) {
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$manipulation[$table]["fields"][$fieldName] = "'".$this->parseFixtureVal($fieldVal)."'";
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}
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DB::manipulate($manipulation);
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$this->fixtureDictionary[$table][$identifier] = DB::getGeneratedID($table);
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2008-08-11 01:17:51 +02:00
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}
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}
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/**
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* Parse a value from a fixture file. If it starts with => it will get an ID from the fixture dictionary
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*/
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protected function parseFixtureVal($fieldVal) {
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// Parse a dictionary reference - used to set foreign keys
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if(substr($fieldVal,0,2) == '=>') {
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list($a, $b) = explode('.', substr($fieldVal,2), 2);
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return $this->fixtureDictionary[$a][$b];
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// Regular field value setting
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} else {
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return $fieldVal;
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}
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}
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}
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