/**
* Sets scope for this expression so it knows its
* source table.
*
* @param $stmt FQLStatement that this expression was contained in
*/
public function set_scope($stmt)
{
$this->right->set_scope($stmt);
parent::set_scope($stmt);
}
/**
* Sets the scope for this field expression. Performs validity
* check on the field name by checking if the field name is
* contained in the source table. Initializes the appropriate
* field object for the field name for this table.
*
* @param $scope FQLStatement that this expression is
* contained in
*
* Throws UnknownFieldException if this field name is not
* a valid field in the source table.
*/
public function set_scope($scope)
{
$fields = $scope->from_table->get_fields();
if (isset($fields[$this->field_name])) {
$this->field = new $fields[$this->field_name]($scope->user, $scope->app_id, $scope->from_table, $this->field_name);
} else {
throw new UnknownFieldException($this->field_name, $scope->from, 'table');
}
parent::set_scope($scope);
}
/**
* Sets the scope for this IN expression by setting the scope for
* the initial expression and the list of expressions.
*
* @param $scope the FQLStatement that this IN expression was contained in
*/
public function set_scope($scope)
{
$this->expression->set_scope($scope);
foreach ($this->list as $expression) {
$expression->set_scope($scope);
}
parent::set_scope($scope);
}
