155 lines
4.5 KiB
Python
155 lines
4.5 KiB
Python
#This file is part of Tryton. The COPYRIGHT file at the top level of
|
|
#this repository contains the full copyright notices and license terms.
|
|
|
|
|
|
class TableHandlerInterface(object):
|
|
'''
|
|
Define generic interface to handle database table
|
|
'''
|
|
|
|
def __init__(self, cursor, table_name, object_name=None, module_name=None):
|
|
super(TableHandlerInterface, self).__init__()
|
|
self.cursor = cursor
|
|
self.table_name = table_name
|
|
self.object_name = object_name
|
|
self.module_name = module_name
|
|
|
|
@staticmethod
|
|
def table_exist(cursor, table_name):
|
|
'''
|
|
Table exist
|
|
|
|
:param cursor: the database cursor
|
|
:param table_name: the table name
|
|
:return: a boolean
|
|
'''
|
|
raise
|
|
|
|
def column_exist(self, column_name):
|
|
'''
|
|
Column exist
|
|
|
|
:param column_name: the column name
|
|
:return: a boolean
|
|
'''
|
|
raise
|
|
|
|
def alter_size(self, column_name, column_type):
|
|
'''
|
|
Modify size of a column
|
|
|
|
:param column_name: the column name
|
|
:param column_type: the column definition
|
|
'''
|
|
raise
|
|
|
|
def alter_type(self, column_name, column_type):
|
|
'''
|
|
Modify type of a column
|
|
|
|
:param column_name: the column name
|
|
:param column_type: the column definition
|
|
'''
|
|
raise
|
|
|
|
def db_default(self, column_name, value):
|
|
'''
|
|
Set a default on a column
|
|
|
|
:param column_name: the column name
|
|
:param value: the default value
|
|
'''
|
|
raise
|
|
|
|
def add_raw_column(self, column_name, column_type, symbol_set,
|
|
default_fun=None, field_size=None, migrate=True):
|
|
'''
|
|
Add a column
|
|
|
|
:param column_name: the column name
|
|
:param column_type: the column definition
|
|
:param symbol_set: a tuple with the symbol char and the symbol function
|
|
:param default_fun: the function that return the default value
|
|
:param field_size: the size of the column if there is one
|
|
:param migrate: boolean to try to migrate the column if exists
|
|
'''
|
|
raise
|
|
|
|
def add_m2m(self, column_name, other_table, relation_table, rtable_from,
|
|
rtable_to, on_delete_from, on_delete_to):
|
|
'''
|
|
Add a many2many
|
|
|
|
:param column_name: the column name
|
|
:param other_table: the name of the other table
|
|
:param relation_table: the name of the table for the relation
|
|
:param rtable_from: the column name in the relation table
|
|
for this table
|
|
:param rtable_to: the column name in the relation table
|
|
for the other table
|
|
:param on_delete_from: the "on delete" for the column
|
|
in the relation table for this table
|
|
:param on_delete_to: the "on delete" for the column
|
|
in the relation table for the other table
|
|
'''
|
|
raise
|
|
|
|
def add_fk(self, column_name, reference, on_delete=None):
|
|
'''
|
|
Add a foreign key
|
|
|
|
:param column_name: the column name
|
|
:param reference: the foreign table name
|
|
:param on_delete: the "on delete" value
|
|
'''
|
|
raise
|
|
|
|
def index_action(self, column_name, action='add'):
|
|
'''
|
|
Add/remove an index
|
|
|
|
:param column_name: the column name
|
|
:param action: 'add' or 'remove'
|
|
'''
|
|
raise
|
|
|
|
def not_null_action(self, column_name, action='add'):
|
|
'''
|
|
Add/remove a "not null"
|
|
|
|
:param column_name: the column name
|
|
:param action: 'add' or 'remove'
|
|
'''
|
|
raise
|
|
|
|
def add_constraint(self, ident, constraint, exception=False):
|
|
'''
|
|
Add a constraint
|
|
|
|
:param ident: the name of the constraint
|
|
:param constraint: the definition of the constraint
|
|
:param exception: a boolean to raise or not an exception
|
|
if it is not possible to add the constraint
|
|
'''
|
|
raise
|
|
|
|
def drop_constraint(self, ident, exception=False):
|
|
'''
|
|
Remove a constraint
|
|
|
|
:param ident: the name of the constraint
|
|
:param exception: a boolean to raise or not an exception
|
|
if it is not possible to remove the constraint
|
|
'''
|
|
raise
|
|
|
|
def drop_column(self, column_name, exception=False):
|
|
'''
|
|
Remove a column
|
|
|
|
:param column_name: the column name
|
|
:param exception: a boolean to raise or not an exception
|
|
if it is not possible to remove the column
|
|
'''
|
|
raise
|