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<?php namespace Jenssegers\Eloquent;
use Illuminate\Database\Eloquent\Relations\MorphOne;
use Illuminate\Database\Eloquent\Relations\MorphMany;
use Illuminate\Database\Eloquent\Relations\Relation;
use Jenssegers\Mongodb\Relations\HasOne;
use Jenssegers\Mongodb\Relations\HasMany;
use Jenssegers\Mongodb\Relations\BelongsTo;
use Jenssegers\Mongodb\Relations\BelongsToMany;
use Jenssegers\Mongodb\Relations\MorphTo;
use Jenssegers\Mongodb\Query\Builder as QueryBuilder;
abstract class Model extends \Illuminate\Database\Eloquent\Model {
/**
* Define a one-to-one relationship.
*
* @param string $related
* @param string $foreignKey
* @param string $localKey
* @return \Illuminate\Database\Eloquent\Relations\HasOne
*/
public function hasOne($related, $foreignKey = null, $localKey = null)
{
// Check if it is a relation with an original model.
if (!is_subclass_of($related, 'Jenssegers\Mongodb\Model'))
{
return parent::hasOne($related, $foreignKey, $localKey);
}
$foreignKey = $foreignKey ?: $this->getForeignKey();
$instance = new $related;
$localKey = $localKey ?: $this->getKeyName();
return new HasOne($instance->newQuery(), $this, $foreignKey, $localKey);
}
/**
* Define a polymorphic one-to-one relationship.
*
* @param string $related
* @param string $name
* @param string $type
* @param string $id
* @param string $localKey
* @return \Illuminate\Database\Eloquent\Relations\MorphOne
*/
public function morphOne($related, $name, $type = null, $id = null, $localKey = null)
{
// Check if it is a relation with an original model.
if (!is_subclass_of($related, 'Jenssegers\Mongodb\Model'))
{
return parent::morphOne($related, $name, $type, $id, $localKey );
}
$instance = new $related;
list($type, $id) = $this->getMorphs($name, $type, $id);
$table = $instance->getTable();
$localKey = $localKey ?: $this->getKeyName();
return new MorphOne($instance->newQuery(), $this, $type, $id, $localKey);
}
/**
* Define a one-to-many relationship.
*
* @param string $related
* @param string $foreignKey
* @param string $localKey
* @return \Illuminate\Database\Eloquent\Relations\HasMany
*/
public function hasMany($related, $foreignKey = null, $localKey = null)
{
// Check if it is a relation with an original model.
if (!is_subclass_of($related, 'Jenssegers\Mongodb\Model'))
{
return parent::hasMany($related, $foreignKey, $localKey);
}
$foreignKey = $foreignKey ?: $this->getForeignKey();
$instance = new $related;
$localKey = $localKey ?: $this->getKeyName();
return new HasMany($instance->newQuery(), $this, $foreignKey, $localKey);
}
/**
* Define a polymorphic one-to-many relationship.
*
* @param string $related
* @param string $name
* @param string $type
* @param string $id
* @param string $localKey
* @return \Illuminate\Database\Eloquent\Relations\MorphMany
*/
public function morphMany($related, $name, $type = null, $id = null, $localKey = null)
{
// Check if it is a relation with an original model.
if (!is_subclass_of($related, 'Jenssegers\Mongodb\Model'))
{
return parent::morphMany($related, $name, $type, $id, $localKey);
}
$instance = new $related;
// Here we will gather up the morph type and ID for the relationship so that we
// can properly query the intermediate table of a relation. Finally, we will
// get the table and create the relationship instances for the developers.
list($type, $id) = $this->getMorphs($name, $type, $id);
$table = $instance->getTable();
$localKey = $localKey ?: $this->getKeyName();
return new MorphMany($instance->newQuery(), $this, $type, $id, $localKey);
}
/**
* Define an inverse one-to-one or many relationship.
*
* @param string $related
* @param string $foreignKey
* @param string $otherKey
* @param string $relation
* @return \Illuminate\Database\Eloquent\Relations\BelongsTo
*/
public function belongsTo($related, $foreignKey = null, $otherKey = null, $relation = null)
{
// If no relation name was given, we will use this debug backtrace to extract
// the calling method's name and use that as the relationship name as most
// of the time this will be what we desire to use for the relatinoships.
if (is_null($relation))
{
list(, $caller) = debug_backtrace(false);
$relation = $caller['function'];
}
// Check if it is a relation with an original model.
if (!is_subclass_of($related, 'Jenssegers\Mongodb\Model'))
{
return parent::belongsTo($related, $foreignKey, $otherKey, $relation);
}
// If no foreign key was supplied, we can use a backtrace to guess the proper
// foreign key name by using the name of the relationship function, which
// when combined with an "_id" should conventionally match the columns.
if (is_null($foreignKey))
{
$foreignKey = snake_case($relation).'_id';
}
$instance = new $related;
// Once we have the foreign key names, we'll just create a new Eloquent query
// for the related models and returns the relationship instance which will
// actually be responsible for retrieving and hydrating every relations.
$query = $instance->newQuery();
$otherKey = $otherKey ?: $instance->getKeyName();
return new BelongsTo($query, $this, $foreignKey, $otherKey, $relation);
}
/**
* Define a polymorphic, inverse one-to-one or many relationship.
*
* @param string $name
* @param string $type
* @param string $id
* @return \Illuminate\Database\Eloquent\Relations\MorphTo
*/
public function morphTo($name = null, $type = null, $id = null)
{
// If no name is provided, we will use the backtrace to get the function name
// since that is most likely the name of the polymorphic interface. We can
// use that to get both the class and foreign key that will be utilized.
if (is_null($name))
{
list(, $caller) = debug_backtrace(false);
$name = snake_case($caller['function']);
}
list($type, $id) = $this->getMorphs($name, $type, $id);
// If the type value is null it is probably safe to assume we're eager loading
// the relationship. When that is the case we will pass in a dummy query as
// there are multiple types in the morph and we can't use single queries.
if (is_null($class = $this->$type))
{
return new MorphTo(
$this->newQuery(), $this, $id, null, $type, $name
);
}
// If we are not eager loading the relatinship, we will essentially treat this
// as a belongs-to style relationship since morph-to extends that class and
// we will pass in the appropriate values so that it behaves as expected.
else
{
$instance = new $class;
return new MorphTo(
with($instance)->newQuery(), $this, $id, $instance->getKeyName(), $type, $name
);
}
}
/**
* Define a many-to-many relationship.
*
* @param string $related
* @param string $collection
* @param string $foreignKey
* @param string $otherKey
* @param string $relation
* @return \Illuminate\Database\Eloquent\Relations\BelongsToMany
*/
public function belongsToMany($related, $collection = null, $foreignKey = null, $otherKey = null, $relation = null)
{
// If no relationship name was passed, we will pull backtraces to get the
// name of the calling function. We will use that function name as the
// title of this relation since that is a great convention to apply.
if (is_null($relation))
{
$relation = $this->getBelongsToManyCaller();
}
// Check if it is a relation with an original model.
if (!is_subclass_of($related, 'Jenssegers\Mongodb\Model'))
{
return parent::belongsToMany($related, $collection, $foreignKey, $otherKey, $relation);
}
// First, we'll need to determine the foreign key and "other key" for the
// relationship. Once we have determined the keys we'll make the query
// instances as well as the relationship instances we need for this.
$foreignKey = $foreignKey ?: $this->getForeignKey() . 's';
$instance = new $related;
$otherKey = $otherKey ?: $instance->getForeignKey() . 's';
// If no table name was provided, we can guess it by concatenating the two
// models using underscores in alphabetical order. The two model names
// are transformed to snake case from their default CamelCase also.
if (is_null($collection))
{
$collection = $instance->getTable();
}
// Now we're ready to create a new query builder for the related model and
// the relationship instances for the relation. The relations will set
// appropriate query constraint and entirely manages the hydrations.
$query = $instance->newQuery();
return new BelongsToMany($query, $this, $collection, $foreignKey, $otherKey, $relation);
}
/**
* Get a new query builder instance for the connection.
*
* @return Builder
*/
protected function newBaseQueryBuilder()
{
$connection = $this->getConnection();
// Check the connection type
if ($connection instanceof \Jenssegers\Mongodb\Connection)
{
return new QueryBuilder($connection);
}
return parent::newBaseQueryBuilder();
}
}