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# -*- coding: utf-8 -*-
# Part of Odoo. See LICENSE file for full copyright and licensing details.
def drop_view_if_exists(cr, viewname):
cr.execute("DROP view IF EXISTS %s CASCADE" % (viewname,))
cr.commit()
def escape_psql(to_escape):
return to_escape.replace('\\', r'\\').replace('%', '\%').replace('_', '\_')
def pg_varchar(size=0):
""" Returns the VARCHAR declaration for the provided size:
* If no size (or an empty or negative size is provided) return an
'infinite' VARCHAR
* Otherwise return a VARCHAR(n)
:type int size: varchar size, optional
:rtype: str
"""
if size:
if not isinstance(size, int):
raise ValueError("VARCHAR parameter should be an int, got %s" % type(size))
if size > 0:
return 'VARCHAR(%d)' % size
return 'VARCHAR'
def reverse_order(order):
""" Reverse an ORDER BY clause """
items = []
for item in order.split(','):
item = item.lower().split()
direction = 'asc' if item[1:] == ['desc'] else 'desc'
items.append('%s %s' % (item[0], direction))
return ', '.join(items)