twisted.enterprise.row.RowObject : API documentation

I represent a row in a table in a relational database.

My class is "populated" by a Reflector object. After I am populated, instances of me are able to interact with a particular database table.

You should use a class derived from this class for each database table.

reflector.loadObjectsFrom() is used to create sets of instance of objects of this class from database tables.

Once created, the "key column" attributes cannot be changed.

Class Attributes that users must supply:

  rowKeyColumns     # list of key columns in form: [(columnName, typeName)]
  rowTableName      # name of database table
  rowColumns        # list of the columns in the table with the correct
                    # case.this will be used to create member variables.
  rowFactoryMethod  # method to create an instance of this class.
                    # HACK: must be in a list!!! [factoryMethod] (optional)
  rowForeignKeys    # keys to other tables (optional)

Method	__init__	DEPRECATED.
Method	assignKeyAttr	Assign to a key attribute.
Method	findAttribute	Find an attribute by caseless name.
Method	__setattr__	Special setattr to prevent changing of key values.
Method	createDefaultAttributes	Populate instance with default attributes.
Method	setDirty	Use this to set the 'dirty' flag.
Method	getKeyTuple	Undocumented

Assign to a key attribute.

This cannot be done through normal means to protect changing keys of db objects.

Find an attribute by caseless name.

Special setattr to prevent changing of key values.

Populate instance with default attributes.

This is used when creating a new instance NOT from the database.

Use this to set the 'dirty' flag.

(note: this avoids infinite recursion in __setattr__, and prevents the 'dirty' flag )

t.e.r.RowObject : class documentation