Minor logic and formatting changes. Considering making Linkable operate recursively.
git-svn-id: file:///svn-source/pmgr/branches/yafr_20090716@354 97e9348a-65ac-dc4b-aefc-98561f571b83
This commit is contained in:
abijah
@@ -130,298 +130,305 @@ class LinkableBehavior extends ModelBehavior {
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}
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public function beforeFind(&$Model, $query) {
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return $this->buildQuery($Model, $query);
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}
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function buildQuery(&$Model, $query) {
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$this->pr(10,
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array('function' => 'Linkable::beforeFind',
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array('function' => 'Linkable::buildQuery',
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'args' => array('Model->alias' => '$Model->alias') + compact('query'),
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));
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if (isset($query[$this->_key])) {
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$optionsDefaults = $this->_defaults + array('reference' =>
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array('class' => $Model->alias,
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'alias' => $Model->alias),
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$this->_key => array());
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$optionsKeys = $this->_options + array($this->_key => true);
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if (!isset($query['fields']) || $query['fields'] === true) {
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//$query['fields'] = array_keys($Model->_schema);
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$query['fields'] = $Model->getDataSource()->fields($Model);
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} elseif (!is_array($query['fields'])) {
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$query['fields'] = array($query['fields']);
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}
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$query = am(array('joins' => array()), $query, array('recursive' => -1));
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$iterators[] = $query[$this->_key];
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$cont = 0;
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do {
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$iterator = $iterators[$cont];
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$defaults = $optionsDefaults;
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if (isset($iterator['defaults'])) {
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$defaults = array_merge($defaults, $iterator['defaults']);
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unset($iterator['defaults']);
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}
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$iterations = Set::normalize($iterator);
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$this->pr(25,
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array('checkpoint' => 'Iterations',
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compact('cont', 'iterator', 'iterations'),
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));
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foreach ($iterations as $alias => $options) {
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if (is_null($options)) {
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$options = array();
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}
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$options = am($defaults, compact('alias'), $options);
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if (empty($options['alias'])) {
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throw new InvalidArgumentException(sprintf('%s::%s must receive aliased links', get_class($this), __FUNCTION__));
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}
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if (empty($options['class']))
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$options['class'] = $alias;
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if (!isset($query[$this->_key]))
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return $query;
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if (!isset($options['conditions']))
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$options['conditions'] = array();
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elseif (!is_array($options['conditions']))
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$options['conditions'] = array($options['conditions']);
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$this->pr(20,
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array('checkpoint' => 'Begin Model Work',
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compact('alias', 'options'),
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));
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$modelClass = $options['class'];
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$modelAlias = $options['alias'];
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$referenceClass = $options['reference']['class'];
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$referenceAlias = $options['reference']['alias'];
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$_Model =& ClassRegistry::init($modelClass); // the incoming model to be linked in query
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$Reference =& ClassRegistry::init($referenceClass); // the already in query model that links to $_Model
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$this->pr(12,
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array('checkpoint' => 'Aliases Established',
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'Model' => ($modelAlias .' : '. $modelClass .
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' ('. $_Model->alias .' : '. $_Model->name .')'),
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'Reference' => ($referenceAlias .' : '. $referenceClass .
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' ('. $Reference->alias .' : '. $Reference->name .')'),
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));
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$db =& $_Model->getDataSource();
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$associatedThroughReference = 0;
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$association = null;
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// Figure out how these two models are related, creating
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// a relationship if one doesn't otherwise already exists.
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if (($associations = $Reference->getAssociated()) &&
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isset($associations[$_Model->alias])) {
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$this->pr(12, array('checkpoint' => "Reference defines association to _Model"));
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$associatedThroughReference = 1;
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$type = $associations[$_Model->alias];
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$association = $Reference->{$type}[$_Model->alias];
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}
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elseif (($associations = $_Model->getAssociated()) &&
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isset($associations[$Reference->alias])) {
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$this->pr(12, array('checkpoint' => "_Model defines association to Reference"));
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$type = $associations[$Reference->alias];
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$association = $_Model->{$type}[$Reference->alias];
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}
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else {
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// No relationship... make our best effort to create one.
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$this->pr(12, array('checkpoint' => "No assocation between _Model and Reference"));
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$type = 'belongsTo';
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$_Model->bind($Reference->alias);
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// Grab the association now, since we'll unbind in a moment.
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$association = $_Model->{$type}[$Reference->alias];
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$_Model->unbindModel(array('belongsTo' => array($Reference->alias)));
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}
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// Determine which model holds the foreign key
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if (($type === 'hasMany' || $type === 'hasOne') ^ $associatedThroughReference) {
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$primaryAlias = $referenceAlias;
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$foreignAlias = $modelAlias;
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$primaryModel = $Reference;
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$foreignModel = $_Model;
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} else {
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$primaryAlias = $modelAlias;
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$foreignAlias = $referenceAlias;
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$primaryModel = $_Model;
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$foreignModel = $Reference;
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}
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if ($associatedThroughReference)
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$associationAlias = $referenceAlias;
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else
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$associationAlias = $modelAlias;
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// A couple exceptions before performing a union of
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// options and association. Namely, most fields result
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// in either/or, but a couple should include BOTH the
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// options AND the association settings.
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foreach (array('fields', 'conditions') AS $fld) {
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if (isset($options[$fld]) && is_array($options[$fld]) &&
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isset($association[$fld]) && is_array($association[$fld]))
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$options[$fld] = array_merge($options[$fld],
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$association[$fld]);
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}
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// For any option that's not already set, use
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// whatever is specified by the assocation.
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$options += array_intersect_key($association, $this->_options);
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// Replace all instances of the MODEL_ALIAS variable
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// tag with the correct model alias.
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$this->recursive_array_replace("%{MODEL_ALIAS}",
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$associationAlias,
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$options['conditions']);
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$this->pr(15,
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array('checkpoint' => 'Models Established - Check Associations',
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'primaryModel' => $primaryAlias .' : '. $primaryModel->name,
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'foreignModel' => $foreignAlias .' : '. $foreignModel->name,
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compact('type', 'association', 'options'),
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));
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if ($type === 'hasAndBelongsToMany') {
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if (isset($association['with']))
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$linkClass = $association['with'];
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else
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$linkClass = Inflector::classify($association['joinTable']);
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$Link =& $_Model->{$linkClass};
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if (isset($options['linkalias']))
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$linkAlias = $options['linkalias'];
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else
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$linkAlias = $Link->alias;
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// foreignKey and associationForeignKey can refer to either
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// the model or the reference, depending on which class
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// actually defines the association. Make sure to we're
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// using the foreign keys to point to the right class.
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if ($associatedThroughReference) {
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$modelAFK = 'associationForeignKey';
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$referenceAFK = 'foreignKey';
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} else {
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$modelAFK = 'foreignKey';
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$referenceAFK = 'associationForeignKey';
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}
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$this->pr(17,
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array('checkpoint' => 'Linking HABTM',
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compact('linkClass', 'linkAlias',
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'modelAFK', 'referenceAFK'),
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));
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// Get the foreign key fields (for the link table) directly from
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// the defined model associations, if they exists. This is the
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// users direct specification, and therefore definitive if present.
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$modelLink = $Link->escapeField($association[$modelAFK], $linkAlias);
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$referenceLink = $Link->escapeField($association[$referenceAFK], $linkAlias);
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// If we haven't figured out the foreign keys, see if there is a
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// model for the link table, and if it has the appropriate
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// associations with the two tables we're trying to join.
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if (empty($modelLink) && isset($Link->belongsTo[$_Model->alias]))
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$modelLink = $Link->escapeField($Link->belongsTo[$_Model->alias]['foreignKey'], $linkAlias);
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if (empty($referenceLink) && isset($Link->belongsTo[$Reference->alias]))
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$referenceLink = $Link->escapeField($Link->belongsTo[$Reference->alias]['foreignKey'], $linkAlias);
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// We're running quite thin here. None of the models spell
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// out the appropriate linkages. We'll have to SWAG it.
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if (empty($modelLink))
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$modelLink = $Link->escapeField(Inflector::underscore($_Model->alias) . '_id', $linkAlias);
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if (empty($referenceLink))
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$referenceLink = $Link->escapeField(Inflector::underscore($Reference->alias) . '_id', $linkAlias);
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// Get the primary key from the tables we're joining.
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$referenceKey = $Reference->escapeField(null, $referenceAlias);
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$modelKey = $_Model->escapeField(null, $modelAlias);
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$this->pr(21,
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array('checkpoint' => 'HABTM links/keys',
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array(compact('modelLink', 'modelKey'),
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compact('referenceLink', 'referenceKey')),
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));
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// Join the linkage table to our model. We'll use an inner join,
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// as the whole purpose of the linkage table is to make this
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// connection. As we are embedding this join, the INNER will not
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// cause any problem with the overall query, should the user not
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// be concerned with whether or not the join has any results.
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// They control that with the 'type' parameter which will be at
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// the top level join.
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$options['joins'][] = array('type' => 'INNER',
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'alias' => $modelAlias,
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'conditions' => "{$modelKey} = {$modelLink}",
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'table' => $db->fullTableName($_Model, true));
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// Now for the top level join. This will be added into the list
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// of joins down below, outside of the HABTM specific code.
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$options['class'] = $linkClass;
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$options['alias'] = $linkAlias;
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$options['table'] = $Link->getDataSource()->fullTableName($Link);
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$options['conditions'][] = "{$referenceLink} = {$referenceKey}";
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}
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elseif (isset($association['foreignKey']) && $association['foreignKey']) {
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$foreignKey = $primaryModel->escapeField($association['foreignKey'], $primaryAlias);
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$primaryKey = $foreignModel->escapeField($foreignModel->primaryKey, $foreignAlias);
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$this->pr(17,
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array('checkpoint' => 'Linking due to foreignKey',
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compact('foreignKey', 'primaryKey'),
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));
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// Only differentiating to help show the logical flow.
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// Either way works and this test can be tossed out
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if (($type === 'hasMany' || $type === 'hasOne') ^ $associatedThroughReference)
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$options['conditions'][] = "{$primaryKey} = {$foreignKey}";
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else
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$options['conditions'][] = "{$foreignKey} = {$primaryKey}";
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}
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else {
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$this->pr(17,
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array('checkpoint' => 'Linking with no logic (expecting user defined)',
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));
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// No Foreign Key... nothing we can do.
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}
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$this->pr(19,
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array('checkpoint' => 'Conditions',
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array('options[conditions]' => $options['conditions'],
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),
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));
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if (empty($options['table'])) {
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$options['table'] = $db->fullTableName($_Model, true);
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}
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if (!isset($options['fields']) || !is_array($options['fields']))
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$options['fields'] = $db->fields($_Model, $modelAlias);
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elseif (!empty($options['fields']))
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$options['fields'] = $db->fields($_Model, $modelAlias, $options['fields']);
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$query['fields'] = array_merge($query['fields'], $options['fields']);
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$options[$this->_key] = am($options[$this->_key], array_diff_key($options, $optionsKeys));
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$options = array_intersect_key($options, $optionsKeys);
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if (!empty($options[$this->_key])) {
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$this->pr(24,
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array('checkpoint' => 'Add new iterator',
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'options[this->_key]' => $options[$this->_key],
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compact('defaults', 'modelClass', 'modelAlias'),
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));
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$iterators[] = $options[$this->_key] +
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array('defaults' =>
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array_merge($defaults,
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array('reference' =>
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array('class' => $modelClass,
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'alias' => $modelAlias))));
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}
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$query['joins'][] = array_intersect_key($options, array('type' => true, 'alias' => true, 'table' => true, 'joins' => true, 'conditions' => true));
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$this->pr(19,
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array('checkpoint' => 'Model Join Complete',
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compact('options', 'modelClass', 'modelAlias', 'query'),
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));
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}
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++$cont;
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$notDone = isset($iterators[$cont]);
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} while ($notDone);
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$optionsDefaults = $this->_defaults + array('reference' =>
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array('class' => $Model->alias,
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'alias' => $Model->alias),
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$this->_key => array());
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$optionsKeys = $this->_options + array($this->_key => true);
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if (!isset($query['fields']) || $query['fields'] === true) {
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//$query['fields'] = array_keys($Model->_schema);
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$query['fields'] = $Model->getDataSource()->fields($Model);
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} elseif (!is_array($query['fields'])) {
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$query['fields'] = array($query['fields']);
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}
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$query = am(array('joins' => array()), $query, array('recursive' => -1));
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$iterators[] = $query[$this->_key];
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$cont = 0;
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do {
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$iterator = $iterators[$cont];
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$defaults = $optionsDefaults;
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if (isset($iterator['defaults'])) {
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$defaults = array_merge($defaults, $iterator['defaults']);
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unset($iterator['defaults']);
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}
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$iterations = Set::normalize($iterator);
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$this->pr(25,
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array('checkpoint' => 'Iterations',
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compact('cont', 'iterator', 'iterations'),
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));
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foreach ($iterations as $alias => $options) {
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if (is_null($options)) {
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$options = array();
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}
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$options = am($defaults, compact('alias'), $options);
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if (empty($options['alias'])) {
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throw new InvalidArgumentException(sprintf('%s::%s must receive aliased links', get_class($this), __FUNCTION__));
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}
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if (empty($options['class']))
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$options['class'] = $alias;
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if (!isset($options['conditions']))
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$options['conditions'] = array();
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elseif (!is_array($options['conditions']))
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$options['conditions'] = array($options['conditions']);
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$this->pr(20,
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array('checkpoint' => 'Begin Model Work',
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compact('alias', 'options'),
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));
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$modelClass = $options['class'];
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$modelAlias = $options['alias'];
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$referenceClass = $options['reference']['class'];
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$referenceAlias = $options['reference']['alias'];
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$_Model =& ClassRegistry::init($modelClass); // the incoming model to be linked in query
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$Reference =& ClassRegistry::init($referenceClass); // the already in query model that links to $_Model
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$this->pr(12,
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array('checkpoint' => 'Aliases Established',
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'Model' => ($modelAlias .' : '. $modelClass .
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' ('. $_Model->alias .' : '. $_Model->name .')'),
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'Reference' => ($referenceAlias .' : '. $referenceClass .
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' ('. $Reference->alias .' : '. $Reference->name .')'),
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));
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$db =& $_Model->getDataSource();
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$associatedThroughReference = 0;
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$association = null;
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// Figure out how these two models are related, creating
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// a relationship if one doesn't otherwise already exists.
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if (($associations = $Reference->getAssociated()) &&
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isset($associations[$_Model->alias])) {
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$this->pr(12, array('checkpoint' => "Reference defines association to _Model"));
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$associatedThroughReference = 1;
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$type = $associations[$_Model->alias];
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$association = $Reference->{$type}[$_Model->alias];
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}
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elseif (($associations = $_Model->getAssociated()) &&
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isset($associations[$Reference->alias])) {
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$this->pr(12, array('checkpoint' => "_Model defines association to Reference"));
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$type = $associations[$Reference->alias];
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$association = $_Model->{$type}[$Reference->alias];
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}
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else {
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// No relationship... make our best effort to create one.
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$this->pr(12, array('checkpoint' => "No assocation between _Model and Reference"));
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$type = 'belongsTo';
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$_Model->bind($Reference->alias);
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// Grab the association now, since we'll unbind in a moment.
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$association = $_Model->{$type}[$Reference->alias];
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$_Model->unbindModel(array('belongsTo' => array($Reference->alias)));
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}
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// Determine which model holds the foreign key
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if (($type === 'hasMany' || $type === 'hasOne') ^ $associatedThroughReference) {
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$primaryAlias = $referenceAlias;
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$foreignAlias = $modelAlias;
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$primaryModel = $Reference;
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$foreignModel = $_Model;
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} else {
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$primaryAlias = $modelAlias;
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$foreignAlias = $referenceAlias;
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$primaryModel = $_Model;
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$foreignModel = $Reference;
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}
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if ($associatedThroughReference)
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||||
$associationAlias = $referenceAlias;
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||||
else
|
||||
$associationAlias = $modelAlias;
|
||||
|
||||
// A couple exceptions before performing a union of
|
||||
// options and association. Namely, most fields result
|
||||
// in either/or, but a couple should include BOTH the
|
||||
// options AND the association settings.
|
||||
foreach (array('fields', 'conditions') AS $fld) {
|
||||
if (isset($options[$fld]) && is_array($options[$fld]) &&
|
||||
isset($association[$fld]) && is_array($association[$fld]))
|
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$options[$fld] = array_merge($options[$fld],
|
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$association[$fld]);
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}
|
||||
|
||||
// For any option that's not already set, use
|
||||
// whatever is specified by the assocation.
|
||||
$options += array_intersect_key($association, $this->_options);
|
||||
|
||||
// Replace all instances of the MODEL_ALIAS variable
|
||||
// tag with the correct model alias.
|
||||
$this->recursive_array_replace("%{MODEL_ALIAS}",
|
||||
$associationAlias,
|
||||
$options['conditions']);
|
||||
|
||||
$this->pr(15,
|
||||
array('checkpoint' => 'Models Established - Check Associations',
|
||||
'primaryModel' => $primaryAlias .' : '. $primaryModel->name,
|
||||
'foreignModel' => $foreignAlias .' : '. $foreignModel->name,
|
||||
compact('type', 'association', 'options'),
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||||
));
|
||||
|
||||
if ($type === 'hasAndBelongsToMany') {
|
||||
if (isset($association['with']))
|
||||
$linkClass = $association['with'];
|
||||
else
|
||||
$linkClass = Inflector::classify($association['joinTable']);
|
||||
|
||||
$Link =& $_Model->{$linkClass};
|
||||
|
||||
if (isset($options['linkalias']))
|
||||
$linkAlias = $options['linkalias'];
|
||||
else
|
||||
$linkAlias = $Link->alias;
|
||||
|
||||
// foreignKey and associationForeignKey can refer to either
|
||||
// the model or the reference, depending on which class
|
||||
// actually defines the association. Make sure to we're
|
||||
// using the foreign keys to point to the right class.
|
||||
if ($associatedThroughReference) {
|
||||
$modelAFK = 'associationForeignKey';
|
||||
$referenceAFK = 'foreignKey';
|
||||
} else {
|
||||
$modelAFK = 'foreignKey';
|
||||
$referenceAFK = 'associationForeignKey';
|
||||
}
|
||||
|
||||
$this->pr(17,
|
||||
array('checkpoint' => 'Linking HABTM',
|
||||
compact('linkClass', 'linkAlias',
|
||||
'modelAFK', 'referenceAFK'),
|
||||
));
|
||||
|
||||
// Get the foreign key fields (for the link table) directly from
|
||||
// the defined model associations, if they exists. This is the
|
||||
// users direct specification, and therefore definitive if present.
|
||||
$modelLink = $Link->escapeField($association[$modelAFK], $linkAlias);
|
||||
$referenceLink = $Link->escapeField($association[$referenceAFK], $linkAlias);
|
||||
|
||||
// If we haven't figured out the foreign keys, see if there is a
|
||||
// model for the link table, and if it has the appropriate
|
||||
// associations with the two tables we're trying to join.
|
||||
if (empty($modelLink) && isset($Link->belongsTo[$_Model->alias]))
|
||||
$modelLink = $Link->escapeField($Link->belongsTo[$_Model->alias]['foreignKey'], $linkAlias);
|
||||
if (empty($referenceLink) && isset($Link->belongsTo[$Reference->alias]))
|
||||
$referenceLink = $Link->escapeField($Link->belongsTo[$Reference->alias]['foreignKey'], $linkAlias);
|
||||
|
||||
// We're running quite thin here. None of the models spell
|
||||
// out the appropriate linkages. We'll have to SWAG it.
|
||||
if (empty($modelLink))
|
||||
$modelLink = $Link->escapeField(Inflector::underscore($_Model->alias) . '_id', $linkAlias);
|
||||
if (empty($referenceLink))
|
||||
$referenceLink = $Link->escapeField(Inflector::underscore($Reference->alias) . '_id', $linkAlias);
|
||||
|
||||
// Get the primary key from the tables we're joining.
|
||||
$referenceKey = $Reference->escapeField(null, $referenceAlias);
|
||||
$modelKey = $_Model->escapeField(null, $modelAlias);
|
||||
|
||||
$this->pr(21,
|
||||
array('checkpoint' => 'HABTM links/keys',
|
||||
array(compact('modelLink', 'modelKey'),
|
||||
compact('referenceLink', 'referenceKey')),
|
||||
));
|
||||
|
||||
// Join the linkage table to our model. We'll use an inner join,
|
||||
// as the whole purpose of the linkage table is to make this
|
||||
// connection. As we are embedding this join, the INNER will not
|
||||
// cause any problem with the overall query, should the user not
|
||||
// be concerned with whether or not the join has any results.
|
||||
// They control that with the 'type' parameter which will be at
|
||||
// the top level join.
|
||||
$options['joins'][] = array('type' => 'INNER',
|
||||
'alias' => $modelAlias,
|
||||
'conditions' => "{$modelKey} = {$modelLink}",
|
||||
'table' => $db->fullTableName($_Model, true));
|
||||
|
||||
// Now for the top level join. This will be added into the list
|
||||
// of joins down below, outside of the HABTM specific code.
|
||||
$options['class'] = $linkClass;
|
||||
$options['alias'] = $linkAlias;
|
||||
$options['table'] = $Link->getDataSource()->fullTableName($Link);
|
||||
$options['conditions'][] = "{$referenceLink} = {$referenceKey}";
|
||||
}
|
||||
elseif (isset($association['foreignKey']) && $association['foreignKey']) {
|
||||
$foreignKey = $primaryModel->escapeField($association['foreignKey'], $primaryAlias);
|
||||
$primaryKey = $foreignModel->escapeField($foreignModel->primaryKey, $foreignAlias);
|
||||
|
||||
$this->pr(17,
|
||||
array('checkpoint' => 'Linking due to foreignKey',
|
||||
compact('foreignKey', 'primaryKey'),
|
||||
));
|
||||
|
||||
// Only differentiating to help show the logical flow.
|
||||
// Either way works and this test can be tossed out
|
||||
if (($type === 'hasMany' || $type === 'hasOne') ^ $associatedThroughReference)
|
||||
$options['conditions'][] = "{$primaryKey} = {$foreignKey}";
|
||||
else
|
||||
$options['conditions'][] = "{$foreignKey} = {$primaryKey}";
|
||||
}
|
||||
else {
|
||||
$this->pr(17,
|
||||
array('checkpoint' => 'Linking with no logic (expecting user defined)',
|
||||
));
|
||||
|
||||
// No Foreign Key... nothing we can do.
|
||||
}
|
||||
|
||||
$this->pr(19,
|
||||
array('checkpoint' => 'Conditions',
|
||||
array('options[conditions]' => $options['conditions'],
|
||||
),
|
||||
));
|
||||
|
||||
if (empty($options['table'])) {
|
||||
$options['table'] = $db->fullTableName($_Model, true);
|
||||
}
|
||||
|
||||
if (!isset($options['fields']) || !is_array($options['fields']))
|
||||
$options['fields'] = $db->fields($_Model, $modelAlias);
|
||||
elseif (!empty($options['fields']))
|
||||
$options['fields'] = $db->fields($_Model, $modelAlias, $options['fields']);
|
||||
|
||||
$query['fields'] = array_merge($query['fields'], $options['fields']);
|
||||
|
||||
$options[$this->_key] = am($options[$this->_key], array_diff_key($options, $optionsKeys));
|
||||
$options = array_intersect_key($options, $optionsKeys);
|
||||
if (!empty($options[$this->_key])) {
|
||||
$this->pr(24,
|
||||
array('checkpoint' => 'Add new iterator',
|
||||
'options[this->_key]' => $options[$this->_key],
|
||||
compact('defaults', 'modelClass', 'modelAlias'),
|
||||
));
|
||||
$iterators[] = $options[$this->_key] +
|
||||
array('defaults' =>
|
||||
array_merge($defaults,
|
||||
array('reference' =>
|
||||
array('class' => $modelClass,
|
||||
'alias' => $modelAlias))));
|
||||
}
|
||||
$query['joins'][] = array_intersect_key($options, array('type' => true, 'alias' => true, 'table' => true, 'joins' => true, 'conditions' => true));
|
||||
|
||||
$this->pr(19,
|
||||
array('checkpoint' => 'Model Join Complete',
|
||||
compact('options', 'modelClass', 'modelAlias', 'query'),
|
||||
));
|
||||
}
|
||||
++$cont;
|
||||
$notDone = isset($iterators[$cont]);
|
||||
} while ($notDone);
|
||||
|
||||
$this->pr(20,
|
||||
array('function' => 'Linkable::beforeFind',
|
||||
'return' => compact('query'),
|
||||
|
||||
Reference in New Issue
Block a user