home *** CD-ROM | disk | FTP | other *** search
- ##############################################################################
- #
- # Zope Public License (ZPL) Version 1.0
- # -------------------------------------
- #
- # Copyright (c) Digital Creations. All rights reserved.
- #
- # This license has been certified as Open Source(tm).
- #
- # Redistribution and use in source and binary forms, with or without
- # modification, are permitted provided that the following conditions are
- # met:
- #
- # 1. Redistributions in source code must retain the above copyright
- # notice, this list of conditions, and the following disclaimer.
- #
- # 2. Redistributions in binary form must reproduce the above copyright
- # notice, this list of conditions, and the following disclaimer in
- # the documentation and/or other materials provided with the
- # distribution.
- #
- # 3. Digital Creations requests that attribution be given to Zope
- # in any manner possible. Zope includes a "Powered by Zope"
- # button that is installed by default. While it is not a license
- # violation to remove this button, it is requested that the
- # attribution remain. A significant investment has been put
- # into Zope, and this effort will continue if the Zope community
- # continues to grow. This is one way to assure that growth.
- #
- # 4. All advertising materials and documentation mentioning
- # features derived from or use of this software must display
- # the following acknowledgement:
- #
- # "This product includes software developed by Digital Creations
- # for use in the Z Object Publishing Environment
- # (http://www.zope.org/)."
- #
- # In the event that the product being advertised includes an
- # intact Zope distribution (with copyright and license included)
- # then this clause is waived.
- #
- # 5. Names associated with Zope or Digital Creations must not be used to
- # endorse or promote products derived from this software without
- # prior written permission from Digital Creations.
- #
- # 6. Modified redistributions of any form whatsoever must retain
- # the following acknowledgment:
- #
- # "This product includes software developed by Digital Creations
- # for use in the Z Object Publishing Environment
- # (http://www.zope.org/)."
- #
- # Intact (re-)distributions of any official Zope release do not
- # require an external acknowledgement.
- #
- # 7. Modifications are encouraged but must be packaged separately as
- # patches to official Zope releases. Distributions that do not
- # clearly separate the patches from the original work must be clearly
- # labeled as unofficial distributions. Modifications which do not
- # carry the name Zope may be packaged in any form, as long as they
- # conform to all of the clauses above.
- #
- #
- # Disclaimer
- #
- # THIS SOFTWARE IS PROVIDED BY DIGITAL CREATIONS ``AS IS'' AND ANY
- # EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- # IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
- # PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL DIGITAL CREATIONS OR ITS
- # CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
- # SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
- # LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
- # USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
- # ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
- # OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
- # OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- # SUCH DAMAGE.
- #
- #
- # This software consists of contributions made by Digital Creations and
- # many individuals on behalf of Digital Creations. Specific
- # attributions are listed in the accompanying credits file.
- #
- ##############################################################################
- __doc__='''SQL Methods
-
-
- $Id: SQL.py,v 1.13.16.1 2000/11/13 17:04:58 brian Exp $'''
- __version__='$Revision: 1.13.16.1 $'[11:-2]
-
- import Shared.DC.ZRDB.DA
- from Globals import HTMLFile
-
- def SQLConnectionIDs(self):
- """Find SQL database connections in the current folder and above
-
- This function return a list of ids.
- """
- ids={}
- have_id=ids.has_key
- StringType=type('')
-
- while self is not None:
- if hasattr(self, 'objectValues'):
- for o in self.objectValues():
- if (hasattr(o,'_isAnSQLConnection') and o._isAnSQLConnection
- and hasattr(o,'id')):
- id=o.id
- if type(id) is not StringType: id=id()
- if not have_id(id):
- if hasattr(o,'title_and_id'): o=o.title_and_id()
- else: o=id
- ids[id]=id
- if hasattr(self, 'aq_parent'): self=self.aq_parent
- else: self=None
-
- ids=map(lambda item: (item[1], item[0]), ids.items())
- ids.sort()
- return ids
-
- manage_addZSQLMethodForm=HTMLFile('add', globals())
- def manage_addZSQLMethod(self, id, title,
- connection_id, arguments, template,
- REQUEST=None, submit=None):
- """Add an SQL Method
-
- The 'connection_id' argument is the id of a database connection
- that resides in the current folder or in a folder above the
- current folder. The database should understand SQL.
-
- The 'arguments' argument is a string containing an arguments
- specification, as would be given in the SQL method cration form.
-
- The 'template' argument is a string containing the source for the
- SQL Template.
- """
-
- # Note - type checking is handled by _setObject and constructor.
- self._setObject(id, SQL(id, title, connection_id, arguments, template))
- if REQUEST is not None:
- try: u=self.DestinationURL()
- except: u=REQUEST['URL1']
- if submit==" Add and Edit ":
- u="%s/%s/manage_main" % (u,id)
- elif submit==" Add and Test ":
- u="%s/%s/manage_testForm" % (u,id)
- else:
- u=u+'/manage_main'
-
- REQUEST.RESPONSE.redirect(u)
- return ''
-
- class SQL(Shared.DC.ZRDB.DA.DA):
- """SQL Database methods
-
- SQL Database methods are used to access external SQL databases.
-
- They support three important abstractions:
-
- - Method
-
- SQL Methods behave like methods of the folders they are
- accessed in. In particular, they can be used from other
- methods, like Documents, ExternalMethods, and even other SQL
- Methods.
-
- - Searchability
-
- Database methods support the Searchable Object Interface.
- Search interface wizards can be used to build user
- interfaces to them. They can be used in joins and
- unions. They provide meta-data about their input parameters
- and result data.
-
- For more information, see the searchable-object interface
- specification.
-
- - Containment
-
- Database methods support URL traversal to access and invoke
- methods on individual record objects. For example, suppose you
- had an 'employees' database method that took a single argument
- 'employee_id'. Suppose that employees had a 'service_record'
- method (defined in a record class or acquired from a
- folder). The 'service_record' method could be accessed with a
- URL like::
-
- employees/employee_id/1234/service_record
-
- """
- meta_type='Z SQL Method'
-
- manage_main=HTMLFile('edit', globals())
-
-