function AdoDBRecord_AssociationProxy($client, $returns_many, $options)
{
$this->_client = $client;
$this->_returns_many = $returns_many;
$this->_options = $options;
# build base data from options
# TODO select source from polymorphic type
$source = $this->_source = Singleton::instance($options["class_name"]);
if (!is_subclass_of($this->_source, 'AdoDBRecord')) {
die("AdoDBRecord_AssociationProxy: associated class isn't an ancestor of AdoDBRecord");
}
# extract find options
$find_options = array();
if (isset($options["order"])) {
$find_options["order"] = $options["order"];
}
# TODO if (isset($options["select"])) $find_options["select"] = $options["select"];
# parse conditions into string + parameters
# FIXME make this DRY
$parsed_conditions = array();
$parsed_params = array();
if (isset($options["conditions"])) {
$arg = $options["conditions"];
if (!is_array($arg)) {
$arg = array($arg);
}
$conditions = array_merge_recursive($conditions, $arg);
AdoDBRecord_Tools::parse_conditions($conditions, $parsed_conditions, $parsed_params);
}
if (isset($options["primary_key"])) {
$parsed_conditions[] = sprintf("%s = ?", $options["foreign_key"]);
# FIXME PHP4 does not like $obj->$property indirection, fix this after dropping PHP4 support
$parsed_params[] = $client->_attributes[$options["primary_key"]];
} else {
$parsed_conditions[] = sprintf("%s = ?", 'id');
# FIXME PHP4 does not like $obj->$property indirection, fix this after dropping PHP4 support
$parsed_params[] = $client->_attributes[$options["foreign_key"]];
}
$find_conditions = sprintf("(%s)", join($parsed_conditions, ") AND ("));
$find_conditions = strtr($find_conditions, array("%" => "%%", "?" => "'%s'"));
# FIXME not database agnostic
$find_conditions = vsprintf($find_conditions, $parsed_params);
$find_options = array_merge($find_options, array("conditions" => $find_conditions));
if (isset($options["primary_key"])) {
$this->_wrap_scope = array("find" => $find_options, "create" => array($options["foreign_key"] => $client->{$options}["primary_key"]));
} else {
$this->_wrap_scope = array("find" => $find_options);
}
}
function is_association_property($name)
{
return AdoDBRecord_Tools::is_belongs_to_property($name) || AdoDBRecord_Tools::is_has_many_property($name) || AdoDBRecord_Tools::is_has_one_property($name);
}
function parse_member()
{
$args = func_get_args();
switch (count($args)) {
case 1:
# this call was made by __get()
list($property) = $args;
if (AdoDBRecord_Tools::is_column_property($property)) {
return $this->_attributes[$property];
}
if ($property == "id") {
return $this->_attributes[$this->_primary_key];
}
# if no column property check for association or proxy
# TODO cache proxy
$use_proxy = substr($property, -1) == "_";
if ($use_proxy) {
$property = substr($property, 0, -1);
}
if (AdoDBRecord_Tools::is_association_property($property)) {
if (AdoDBRecord_Tools::is_has_many_property($property)) {
$returns_many = true;
$options = $this->_has_many[$property];
} elseif (AdoDBRecord_Tools::is_belongs_to_property($property)) {
$returns_many = false;
$options = $this->_belongs_to[$property];
} elseif (AdoDBRecord_Tools::is_has_one_property($property)) {
$returns_many = false;
$options = $this->_has_one[$property];
} else {
die("AdoDBRecord_Base::parse_member(): fatal association inconsistency");
}
$proxy = new AdoDBRecord_AssociationProxy($this, $returns_many, $options);
if ($use_proxy) {
return $proxy;
}
return $proxy->find();
}
# TODO write a real error handler
die(get_class($this) . "->{$property}: No such property");
case 2:
# this call was made by __set()
# TODO check property is valid (_associations)
list($property, $value) = $args;
if (AdoDBRecord_Tools::is_column_property($property)) {
return $this->set_attributes(array($property => $value));
}
if ($property == "id") {
return $this->set_attributes(array($this->_primary_key => $value));
}
# TODO write a real error handler
die(get_class($this) . "->{$property}: No such property");
default:
# this call was made by some chaotic wizard and is invalid
# TODO write a real error handler
die("AdoDBRecord_Base::parse_member(): unexpected arguments received");
}
}
function end_scope()
{
if (defined("AR_PHP4_COMPAT")) {
# PHP4 cannot pass properties of overloaded objects by reference - work around it
$temp = $this->_scoped_methods;
array_pop($temp);
$this->_scoped_methods = $temp;
} else {
array_pop($this->_scoped_methods);
}
AdoDBRecord_Tools::join_scope_stack();
}
