Suggestion for simplify the code with interface for QueryXXX and abstract class form model classes

It would be useful to have a general interface common to all QueryXXX class like this:

interface ModelCriteriaInterface
{
    public static function create($modelAlias = null, Criteria $criteria = null);
    public function findPk($key, ConnectionInterface $con = null);
    public function findPks($keys, ConnectionInterface $con = null);
    public function filterByPrimaryKey($key);
    public function filterByPrimaryKeys($keys);
    public function prune($record = null);
    public function doDeleteAll(ConnectionInterface $con = null);
    public function delete(ConnectionInterface $con = null);
}

public abstract class AbstractModelCriteria extends ModelCriteria implements ModelCriteriaInterface
{
}

These methods are common to all QueryXXX classes, and many time these are the most used.

For Base/ModelEntity classes is possible to put many code in a general abstract class simplifying the code of the main Base/ModelEntity class. Note that in the abstract class I added the method getQuery that return and instance of a AbstractModelCriteria required to generalize some code and insert it in the abstract class. Also note that all code is a simply copy/paste form the standard code generate by propel. I only changed these methods:

reload, delete, __toString: using constant() to get some const value from the static::TABLE_MAP class, and getQuery() to get an instance of the associated Query class;
getByName, setByName: using call_user_func() to call static method of static::TABLE_MAP class;

Instead of use the constant TABLE_MAP, maybe it would be better to use an abstract static method that must be implemented in the descended class.

abstract class AbstractActiveRecord implements ActiveRecordInterface
{
    /**
     * TableMap class name
     * MUST BE set in the devided class!
     */
    const TABLE_MAP = '\\Map\\AbstractActiveRecordTableMap';

    /**
     * attribute to determine if this object has previously been saved.
     * @var boolean
     */
    protected $new = true;

    /**
     * attribute to determine whether this object has been deleted.
     * @var boolean
     */
    protected $deleted = false;

    /**
     * The columns that have been modified in current object.
     * Tracking modified columns allows us to only update modified columns.
     * @var array
     */
    protected $modifiedColumns = array();

    /**
     * The (virtual) columns that are added at runtime
     * The formatters can add supplementary columns based on a resultset
     * @var array
     */
    protected $virtualColumns = array();

    /**
     * Flag to prevent endless save loop, if this object is referenced
     * by another object which falls in this transaction.
     *
     * @var boolean
     */
    protected $alreadyInSave = false;

    /**
     * ConstraintViolationList object
     *
     * @see     http://api.symfony.com/2.0/Symfony/Component/Validator/ConstraintViolationList.html
     * @var     ConstraintViolationList
     */
    protected $validationFailures;

    /**
     * Applies default values to this object.
     * This method should be called from the object's constructor (or
     * equivalent initialization method).
     * @see __construct()
     */
    abstract public function applyDefaultValues();

    /**
     * Initializes internal state of Base\AbstractActiveRecord object.
     * @see applyDefaults()
     */
    public function __construct()
    {
        $this->applyDefaultValues();
    }

    /**
    * Return the Query connected to this model
    * @return AbstractModelCriteria
    **/
    abstract public function getQuery($modelAlias = null, Criteria $criteria = null);

    /**
     * Returns whether the object has been modified.
     *
     * @return boolean True if the object has been modified.
     */
    public function isModified()
    {
        return !!$this->modifiedColumns;
    }

    /**
     * Has specified column been modified?
     *
     * @param  string  $col column fully qualified name (TableMap::TYPE_COLNAME), e.g. Book::AUTHOR_ID
     * @return boolean True if $col has been modified.
     */
    public function isColumnModified($col)
    {
        return $this->modifiedColumns && isset($this->modifiedColumns[$col]);
    }

    /**
     * Get the columns that have been modified in this object.
     * @return array A unique list of the modified column names for this object.
     */
    public function getModifiedColumns()
    {
        return $this->modifiedColumns ? array_keys($this->modifiedColumns) : [];
    }

    /**
     * Returns whether the object has ever been saved.  This will
     * be false, if the object was retrieved from storage or was created
     * and then saved.
     *
     * @return boolean true, if the object has never been persisted.
     */
    public function isNew()
    {
        return $this->new;
    }

    /**
     * Setter for the isNew attribute.  This method will be called
     * by Propel-generated children and objects.
     *
     * @param boolean $b the state of the object.
     */
    public function setNew($b)
    {
        $this->new = (boolean) $b;
    }

    /**
     * Whether this object has been deleted.
     * @return boolean The deleted state of this object.
     */
    public function isDeleted()
    {
        return $this->deleted;
    }

    /**
     * Specify whether this object has been deleted.
     * @param  boolean $b The deleted state of this object.
     * @return void
     */
    public function setDeleted($b)
    {
        $this->deleted = (boolean) $b;
    }

    /**
     * Sets the modified state for the object to be false.
     * @param  string $col If supplied, only the specified column is reset.
     * @return void
     */
    public function resetModified($col = null)
    {
        if (null !== $col) {
            if (isset($this->modifiedColumns[$col])) {
                unset($this->modifiedColumns[$col]);
            }
        } else {
            $this->modifiedColumns = array();
        }
    }

    /**
     * Compares this with another <code>AbstractActiveRecord</code> instance.  If
     * <code>obj</code> is an instance of <code>AbstractActiveRecord</code>, delegates to
     * <code>equals(AbstractActiveRecord)</code>.  Otherwise, returns <code>false</code>.
     *
     * @param  mixed   $obj The object to compare to.
     * @return boolean Whether equal to the object specified.
     */
    public function equals($obj)
    {
        if (!$obj instanceof static) {
            return false;
        }

        if ($this === $obj) {
            return true;
        }

        if (null === $this->getPrimaryKey() || null === $obj->getPrimaryKey()) {
            return false;
        }

        return $this->getPrimaryKey() === $obj->getPrimaryKey();
    }

    /**
     * Get the associative array of the virtual columns in this object
     *
     * @return array
     */
    public function getVirtualColumns()
    {
        return $this->virtualColumns;
    }

    /**
     * Checks the existence of a virtual column in this object
     *
     * @param  string  $name The virtual column name
     * @return boolean
     */
    public function hasVirtualColumn($name)
    {
        return array_key_exists($name, $this->virtualColumns);
    }

    /**
     * Get the value of a virtual column in this object
     *
     * @param  string $name The virtual column name
     * @return mixed
     *
     * @throws PropelException
     */
    public function getVirtualColumn($name)
    {
        if (!$this->hasVirtualColumn($name)) {
            throw new PropelException(sprintf('Cannot get value of inexistent virtual column %s.', $name));
        }

        return $this->virtualColumns[$name];
    }

    /**
     * Set the value of a virtual column in this object
     *
     * @param string $name  The virtual column name
     * @param mixed  $value The value to give to the virtual column
     *
     * @return $this|Base/AbstractActiveRecord The current object, for fluid interface
     */
    public function setVirtualColumn($name, $value)
    {
        $this->virtualColumns[$name] = $value;

        return $this;
    }

    /**
     * Logs a message using Propel::log().
     *
     * @param  string  $msg
     * @param  int     $priority One of the Propel::LOG_* logging levels
     * @return boolean
     */
    protected function log($msg, $priority = Propel::LOG_INFO)
    {
        return Propel::log(get_class($this) . ': ' . $msg, $priority);
    }

    /**
     * Export the current object properties to a string, using a given parser format
     *
     * @param  mixed   $parser                 A AbstractParser instance, or a format name ('XML', 'YAML', 'JSON', 'CSV')
     * @param  boolean $includeLazyLoadColumns (optional) Whether to include lazy load(ed) columns. Defaults to TRUE.
     * @return string  The exported data
     */
    public function exportTo($parser, $includeLazyLoadColumns = true)
    {
        if (!$parser instanceof AbstractParser) {
            $parser = AbstractParser::getParser($parser);
        }

        return $parser->fromArray($this->toArray(TableMap::TYPE_PHPNAME, $includeLazyLoadColumns, array(), true));
    }

    /**
     * Clean up internal collections prior to serializing
     * Avoids recursive loops that turn into segmentation faults when serializing
     */
    public function __sleep()
    {
        $this->clearAllReferences();

        return array_keys(get_object_vars($this));
    }

    /**
     * Indicates whether the columns in this object are only set to default values.
     *
     * This method can be used in conjunction with isModified() to indicate whether an object is both
     * modified _and_ has some values set which are non-default.
     *
     * @return boolean Whether the columns in this object are only been set with default values.
     */
    abstract public function hasOnlyDefaultValues();

    /**
     * Hydrates (populates) the object variables with values from the database resultset.
     *
     * An offset (0-based "start column") is specified so that objects can be hydrated
     * with a subset of the columns in the resultset rows.  This is needed, for example,
     * for results of JOIN queries where the resultset row includes columns from two or
     * more tables.
     *
     * @param array   $row       The row returned by DataFetcher->fetch().
     * @param int     $startcol  0-based offset column which indicates which restultset column to start with.
     * @param boolean $rehydrate Whether this object is being re-hydrated from the database.
     * @param string  $indexType The index type of $row. Mostly DataFetcher->getIndexType().
                                  One of the class type constants TableMap::TYPE_PHPNAME, TableMap::TYPE_STUDLYPHPNAME
     *                            TableMap::TYPE_COLNAME, TableMap::TYPE_FIELDNAME, TableMap::TYPE_NUM.
     *
     * @return int             next starting column
     * @throws PropelException - Any caught Exception will be rewrapped as a PropelException.
     */
    abstract public function hydrate($row, $startcol = 0, $rehydrate = false, $indexType = TableMap::TYPE_NUM);

    /**
     * Checks and repairs the internal consistency of the object.
     *
     * This method is executed after an already-instantiated object is re-hydrated
     * from the database.  It exists to check any foreign keys to make sure that
     * the objects related to the current object are correct based on foreign key.
     *
     * You can override this method in the stub class, but you should always invoke
     * the base method from the overridden method (i.e. parent::ensureConsistency()),
     * in case your model changes.
     *
     * @throws PropelException
     */
    public function ensureConsistency()
    {
    } // ensureConsistency

    /**
     * Reloads this object from datastore based on primary key and (optionally) resets all associated objects.
     *
     * This will only work if the object has been saved and has a valid primary key set.
     *
     * @param      boolean $deep (optional) Whether to also de-associated any related objects.
     * @param      ConnectionInterface $con (optional) The ConnectionInterface connection to use.
     * @return void
     * @throws PropelException - if this object is deleted, unsaved or doesn't have pk match in db
     */
    public function reload($deep = false, ConnectionInterface $con = null)
    {
        if ($this->isDeleted()) {
            throw new PropelException("Cannot reload a deleted object.");
        }

        if ($this->isNew()) {
            throw new PropelException("Cannot reload an unsaved object.");
        }

        if ($con === null) {
            $database_name = constant(static::TableMap.'::DATABASE_NAME');
            $con = Propel::getServiceContainer()->getReadConnection($database_name);
        }

        // We don't need to alter the object instance pool; we're just modifying this instance
        // already in the pool.

        $childQuery = $this->getQuery(null, $this->buildPkeyCriteria());

        $dataFetcher = childQuery()->setFormatter(ModelCriteria::FORMAT_STATEMENT)->find($con);
        $row = $dataFetcher->fetch();
        $dataFetcher->close();
        if (!$row) {
            throw new PropelException('Cannot find matching row in the database to reload object values.');
        }
        $this->hydrate($row, 0, true, $dataFetcher->getIndexType()); // rehydrate

        if ($deep) {  // also de-associate any related objects?

        } // if (deep)
    }

    /**
     * Removes this object from datastore and sets delete attribute.
     *
     * @param      ConnectionInterface $con
     * @return void
     * @throws PropelException
     * @see AbstractActiveRecord::setDeleted()
     * @see AbstractActiveRecord::isDeleted()
     */
    public function delete(ConnectionInterface $con = null);
    {
        if ($this->isDeleted()) {
            throw new PropelException("This object has already been deleted.");
        }

        if ($con === null) {
            $database_name = constant(static::TableMap.'::DATABASE_NAME');
            $con = Propel::getServiceContainer()->getWriteConnection($database_name);
        }

        $con->transaction(function () use ($con) {
            $deleteQuery =$this->getQuery()
                ->filterByPrimaryKey($this->getPrimaryKey());
            $ret = $this->preDelete($con);
            if ($ret) {
                $deleteQuery->delete($con);
                $this->postDelete($con);
                $this->setDeleted(true);
            }
        });
    }

    /**
     * Persists this object to the database.
     *
     * If the object is new, it inserts it; otherwise an update is performed.
     * All modified related objects will also be persisted in the doSave()
     * method.  This method wraps all precipitate database operations in a
     * single transaction.
     *
     * @param      ConnectionInterface $con
     * @return int             The number of rows affected by this insert/update and any referring fk objects' save() operations.
     * @throws PropelException
     * @see doSave()
     */
    abstract public function save(ConnectionInterface $con = null);

    /**
     * Performs the work of inserting or updating the row in the database.
     *
     * If the object is new, it inserts it; otherwise an update is performed.
     * All related objects are also updated in this method.
     *
     * @param      ConnectionInterface $con
     * @return int             The number of rows affected by this insert/update and any referring fk objects' save() operations.
     * @throws PropelException
     * @see save()
     */
    protected function doSave(ConnectionInterface $con)
    {
        $affectedRows = 0; // initialize var to track total num of affected rows
        if (!$this->alreadyInSave) {
            $this->alreadyInSave = true;

            if ($this->isNew() || $this->isModified()) {
                // persist changes
                if ($this->isNew()) {
                    $this->doInsert($con);
                } else {
                    $this->doUpdate($con);
                }
                $affectedRows += 1;
                $this->resetModified();
            }

            $this->alreadyInSave = false;

        }

        return $affectedRows;
    } // doSave()

    /**
     * Insert the row in the database.
     *
     * @param      ConnectionInterface $con
     *
     * @throws PropelException
     * @see doSave()
     */
    abstract protected function doInsert(ConnectionInterface $con);

    /**
     * Update the row in the database.
     *
     * @param      ConnectionInterface $con
     *
     * @return Integer Number of updated rows
     * @see doSave()
     */
    protected function doUpdate(ConnectionInterface $con)
    {
        $selectCriteria = $this->buildPkeyCriteria();
        $valuesCriteria = $this->buildCriteria();

        return $selectCriteria->doUpdate($valuesCriteria, $con);
    }

    /**
     * Retrieves a field from the object by name passed in as a string.
     *
     * @param      string $name name
     * @param      string $type The type of fieldname the $name is of:
     *                     one of the class type constants TableMap::TYPE_PHPNAME, TableMap::TYPE_STUDLYPHPNAME
     *                     TableMap::TYPE_COLNAME, TableMap::TYPE_FIELDNAME, TableMap::TYPE_NUM.
     *                     Defaults to TableMap::TYPE_PHPNAME.
     * @return mixed Value of field.
     */
    public function getByName($name, $type = TableMap::TYPE_PHPNAME)
    {
        $pos = call_user_func(array(static::TableMap, 'translateFieldName'), $name, $type, TableMap::TYPE_NUM));
        $field = $this->getByPosition($pos);

        return $field;
    }

    /**
     * Retrieves a field from the object by Position as specified in the xml schema.
     * Zero-based.
     *
     * @param      int $pos position in xml schema
     * @return mixed Value of field at $pos
     */
    abstract public function getByPosition($pos);

    /**
     * Exports the object as an array.
     *
     * You can specify the key type of the array by passing one of the class
     * type constants.
     *
     * @param     string  $keyType (optional) One of the class type constants TableMap::TYPE_PHPNAME, TableMap::TYPE_STUDLYPHPNAME,
     *                    TableMap::TYPE_COLNAME, TableMap::TYPE_FIELDNAME, TableMap::TYPE_NUM.
     *                    Defaults to TableMap::TYPE_PHPNAME.
     * @param     boolean $includeLazyLoadColumns (optional) Whether to include lazy loaded columns. Defaults to TRUE.
     * @param     array $alreadyDumpedObjects List of objects to skip to avoid recursion
     *
     * @return array an associative array containing the field names (as keys) and field values
     */
    abstract public function toArray($keyType = TableMap::TYPE_PHPNAME, $includeLazyLoadColumns = true, $alreadyDumpedObjects = array());

    public function setByName($name, $value, $type = TableMap::TYPE_PHPNAME);
    {
        $pos = call_user_func(array(static::TableMap, 'translateFieldName'), $name, $type, TableMap::TYPE_NUM);

        return $this->setByPosition($pos, $value);
    }

    /**
     * Sets a field from the object by Position as specified in the xml schema.
     * Zero-based.
     *
     * @param  int $pos position in xml schema
     * @param  mixed $value field value
     * @return $this|AbstractActiveRecord
     */
    abstract public function setByPosition($pos, $value);

    /**
     * Populates the object using an array.
     *
     * This is particularly useful when populating an object from one of the
     * request arrays (e.g. $_POST).  This method goes through the column
     * names, checking to see whether a matching key exists in populated
     * array. If so the setByName() method is called for that column.
     *
     * You can specify the key type of the array by additionally passing one
     * of the class type constants TableMap::TYPE_PHPNAME, TableMap::TYPE_STUDLYPHPNAME,
     * TableMap::TYPE_COLNAME, TableMap::TYPE_FIELDNAME, TableMap::TYPE_NUM.
     * The default key type is the column's TableMap::TYPE_PHPNAME.
     *
     * @param      array  $arr     An array to populate the object from.
     * @param      string $keyType The type of keys the array uses.
     * @return void
     */
    abstract public function fromArray($arr, $keyType = TableMap::TYPE_PHPNAME);

     /**
     * Populate the current object from a string, using a given parser format
     * <code>
     * $book = new Book();
     * $book->importFrom('JSON', '{"Id":9012,"Title":"Don Juan","ISBN":"0140422161","Price":12.99,"PublisherId":1234,"AuthorId":5678}');
     * </code>
     *
     * @param mixed $parser A AbstractParser instance,
     *                       or a format name ('XML', 'YAML', 'JSON', 'CSV')
     * @param string $data The source data to import from
     *
     * @return $this|Base\AbstractActiveRecord The current object, for fluid interface
     */
    public function importFrom($parser, $data)
    {
        if (!$parser instanceof AbstractParser) {
            $parser = AbstractParser::getParser($parser);
        }

        $this->fromArray($parser->toArray($data), TableMap::TYPE_PHPNAME);

        return $this;
    }

    /**
     * Build a Criteria object containing the values of all modified columns in this object.
     *
     * @return Criteria The Criteria object containing all modified values.
     */
    abstract public function buildCriteria();

    /**
     * Builds a Criteria object containing the primary key for this object.
     *
     * Unlike buildCriteria() this method includes the primary key values regardless
     * of whether or not they have been modified.
     *
     * @throws LogicException if no primary key is defined
     *
     * @return Criteria The Criteria object containing value(s) for primary key(s).
     */
    abstract public function buildPkeyCriteria();
    /**
     * If the primary key is not null, return the hashcode of the
     * primary key. Otherwise, return the hash code of the object.
     *
     * @return int Hashcode
     */
    abstract public function hashCode();

    /**
     * Returns the primary key for this object (row).
     * @return int
     */
    abstract public function getPrimaryKey();

    /**
     * Generic method to set the primary key (id column).
     *
     * @param       int $key Primary key.
     * @return void
     */
    abstract public function setPrimaryKey($key);

    /**
     * Returns true if the primary key for this object is null.
     * @return boolean
     */
    abstract public function isPrimaryKeyNull();

    /**
     * Sets contents of passed object to values from current object.
     *
     * If desired, this method can also make copies of all associated (fkey referrers)
     * objects.
     *
     * @param      object $copyObj An object of AbstractActiveRecord (or compatible) type.
     * @param      boolean $deepCopy Whether to also copy all rows that refer (by fkey) to the current row.
     * @param      boolean $makeNew Whether to reset autoincrement PKs and make the object new.
     * @throws PropelException
     */
    abstract public function copyInto($copyObj, $deepCopy = false, $makeNew = true);

    /**
     * Makes a copy of this object that will be inserted as a new row in table when saved.
     * It creates a new object filling in the simple attributes, but skipping any primary
     * keys that are defined for the table.
     *
     * If desired, this method can also make copies of all associated (fkey referrers)
     * objects.
     *
     * @param  boolean $deepCopy Whether to also copy all rows that refer (by fkey) to the current row.
     * @return AbstractActiveRecord Clone of current object.
     * @throws PropelException
     */
    public function copy($deepCopy = false)
    {
        // we use get_class(), because this might be a subclass
        $clazz = get_class($this);
        $copyObj = new $clazz();
        $this->copyInto($copyObj, $deepCopy);

        return $copyObj;
    }

    /**
     * Clears the current object, sets all attributes to their default values and removes
     * outgoing references as well as back-references (from other objects to this one. Results probably in a database
     * change of those foreign objects when you call `save` there).
     */
    public function clear()
    {
        $this->alreadyInSave = false;
        $this->clearAllReferences();
        $this->applyDefaultValues();
        $this->resetModified();
        $this->setNew(true);
        $this->setDeleted(false);
    }

    /**
     * Resets all references and back-references to other model objects or collections of model objects.
     *
     * This method is used to reset all php object references (not the actual reference in the database).
     * Necessary for object serialisation.
     *
     * @param      boolean $deep Whether to also clear the references on all referrer objects.
     */
    public function clearAllReferences($deep = false)
    {
        if ($deep) {
        } // if ($deep)

    }

    /**
     * Return the string representation of this object
     *
     * @return string
     */
    public function __toString();
    {
        return (string) $this->exportTo(constant(static::TableMap.'::DEFAULT_STRING_FORMAT'));
    }

    /**
     * Code to be run before persisting the object
     * @param  ConnectionInterface $con
     * @return boolean
     */
    public function preSave(ConnectionInterface $con = null)
    {
        return true;
    }

    /**
     * Code to be run after persisting the object
     * @param ConnectionInterface $con
     */
    public function postSave(ConnectionInterface $con = null)
    {

    }

    /**
     * Code to be run before inserting to database
     * @param  ConnectionInterface $con
     * @return boolean
     */
    public function preInsert(ConnectionInterface $con = null)
    {
        return true;
    }

    /**
     * Code to be run after inserting to database
     * @param ConnectionInterface $con
     */
    public function postInsert(ConnectionInterface $con = null)
    {

    }

    /**
     * Code to be run before updating the object in database
     * @param  ConnectionInterface $con
     * @return boolean
     */
    public function preUpdate(ConnectionInterface $con = null)
    {
        return true;
    }

    /**
     * Code to be run after updating the object in database
     * @param ConnectionInterface $con
     */
    public function postUpdate(ConnectionInterface $con = null)
    {

    }

    /**
     * Code to be run before deleting the object in database
     * @param  ConnectionInterface $con
     * @return boolean
     */
    public function preDelete(ConnectionInterface $con = null)
    {
        return true;
    }

    /**
     * Code to be run after deleting the object in database
     * @param ConnectionInterface $con
     */
    public function postDelete(ConnectionInterface $con = null)
    {

    }

    /**
     * Derived method to catches calls to undefined methods.
     *
     * Provides magic import/export method support (fromXML()/toXML(), fromYAML()/toYAML(), etc.).
     * Allows to define default __call() behavior if you overwrite __call()
     *
     * @param string $name
     * @param mixed  $params
     *
     * @return array|string
     */
    public function __call($name, $params)
    {
        if (0 === strpos($name, 'get')) {
            $virtualColumn = substr($name, 3);
            if ($this->hasVirtualColumn($virtualColumn)) {
                return $this->getVirtualColumn($virtualColumn);
            }

            $virtualColumn = lcfirst($virtualColumn);
            if ($this->hasVirtualColumn($virtualColumn)) {
                return $this->getVirtualColumn($virtualColumn);
            }
        }

        if (0 === strpos($name, 'from')) {
            $format = substr($name, 4);

            return $this->importFrom($format, reset($params));
        }

        if (0 === strpos($name, 'to')) {
            $format = substr($name, 2);
            $includeLazyLoadColumns = isset($params[0]) ? $params[0] : true;

            return $this->exportTo($format, $includeLazyLoadColumns);
        }

        throw new BadMethodCallException(sprintf('Call to undefined method: %s.', $name));
    }
}

In this way we can move a lot o generic code from every model classes to a general class:

namespace Base;
abstract class Book implements AbstractActiveRecordInterface
{
    /**
     * TableMap class name
     */
    const TABLE_MAP = '\\Map\\BookTableMap';

    public function getQuery($modelAlias = null, Criteria $criteria = null)
    {
        return new ChildBookQuery::create($modelAlias, $criteria);
    }

   // LIST OF ALL PROTECTED FIELD OF TABLE BOOK
   // ...

    // Behavior code
    // ...

    /**
     * {@inheritdoc}
     */
    public function applyDefaultValues()
    {
        // ...
    }

    // METHODS TO GET FIELD VALUE OF TABLE BOOK
    // ...

    /**
     * {@inheritdoc}
     */
    public function hasOnlyDefaultValues()
    {
            // ...
    }

    /**
     * {@inheritdoc}
     */
    public function hydrate($row, $startcol = 0, $rehydrate = false, $indexType = TableMap::TYPE_NUM)
    {
        // ...
    }

    // METHODS TO SET FIELD VALUE OF TABLE BOOK
    // ...

    /**
     * {@inheritdoc}
     */
    public function save(ConnectionInterface $con = null)
    {
        // ...
    }

    /**
     * {@inheritdoc}
     */
    protected function doInsert(ConnectionInterface $con)
    {
        // ...
    }

    /**
     * {@inheritdoc}
     */
    public function getByPosition($pos)
    {
        // ...
    }

    /**
     * {@inheritdoc}
     */
    public function toArray($keyType = TableMap::TYPE_PHPNAME, $includeLazyLoadColumns = true, $alreadyDumpedObjects = array())
    {
       // ...
    }

    /**
     * {@inheritdoc}
     */
    public function setByPosition($pos, $value)
    {
        // ...
    }

    /**
     * {@inheritdoc}
     */
    public function fromArray($arr, $keyType = TableMap::TYPE_PHPNAME)
    {
        // ...
    }

    /**
     * {@inheritdoc}
     */
    public function buildCriteria()
    {
        // ...
    }

    /**
     * {@inheritdoc}
     */
    public function buildPkeyCriteria()
    {
        // ...
    }

    /**
     * {@inheritdoc}
     */
    public function hashCode()
    {
        // ...
    }

    /**
     * {@inheritdoc}
     */
    public function getPrimaryKey()
    {
        // ...
    }

    /**
     * {@inheritdoc}
     */
    public function setPrimaryKey($key)
    {
        // ...
    }

    /**
     * {@inheritdoc}
     */
    public function isPrimaryKeyNull()
    {
        // WHY this code call the getField associated to the primary key and not $this->getPrimaryKey()??
        // ...
    }

    /**
     * {@inheritdoc}
     */
    public function copyInto($copyObj, $deepCopy = false, $makeNew = true)
    {
        // ...
    }

    /**
     * {@inheritdoc}
     */
    public function clear()
    {
        // ...
        parent::clear();
    }
}

propelorm / Propel2

Suggestion for simplify the code with interface for QueryXXX and abstract class form model classes #722