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.
- #
- ##############################################################################
-
- def manage_addDTMLMethod(id, title):
- """
- Add a DTML Method to the current ObjectManager
- """
-
- class DTMLMethod:
- """
- A DTML Method is a Zope object that contains and executes DTML
- code. It can act as a template to display other objects. It can
- also hold small pieces of content which are inserted into other
- DTML Documents or DTML Methods.
-
- The DTML Method's id is available via the 'document_id'
- variable and the title is available via the 'document_title'
- variable.
-
- """
-
- __extends__=('OFSP.ObjectManagerItem.ObjectManagerItem',)
-
- def __call__(client=None, REQUEST={}, **kw):
- """
-
- Calling a DTMLMethod causes the Method to interpret the DTML
- code that it contains. The method returns the result of the
- interpretation, which can be any kind of object.
-
- To accomplish its task, DTML Method often needs to resolve various
- names into objects. For example, when the code '<dtml-var
- spam>' is executed, the DTML engine tries to resolve the name
- 'spam'.
-
- In order to resolve names, the Method must be passed a
- namespace to look them up in. This can be done several ways:
-
- * By passing a 'client' object -- If the argument 'client' is
- passed, then names are looked up as attributes on the
- argument.
-
- * By passing a 'REQUEST' mapping -- If the argument 'REQUEST'
- is passed, then names are looked up as items on the
- argument. If the object is not a mapping, an TypeError
- will be raised when a name lookup is attempted.
-
- * By passing keyword arguments -- names and their values can
- be passed as keyword arguments to the Method.
-
- The namespace given to a DTML Method is the composite of
- these three methods. You can pass any number of them or none
- at all. Names will be looked up first in the keyword argument,
- next in the client and finally in the mapping.
-
- Unlike DTMLDocuments, DTMLMethods do not look up names in
- their own instance dictionary.
-
- Passing in a namespace to a DTML Method is often referred to
- as providing the Method with a *context*.
-
- DTML Methods are called three ways:
-
- From DTML -- A DTML Method can be called from another DTML
- Method or Document::
-
- <dtml-var standard_html_header>
- <dtml-var aDTMLMethod>
- <dtml-var standard_html_footer>
-
- In this example, the Method 'aDTMLMethod' is being called
- from another DTML object by name. The calling method
- passes the value 'this' as the client argument and the
- current DTML names pace as the REQUEST argument. The above
- is identical to this following usage in a DTML Python
- expression::
-
- <dtml-var standard_html_header>
- <dtml-var "aDTMLMethod(_.None, _)">
- <dtml-var standard_html_footer>
-
- From Python -- Products, External Methods, and PythonMethods
- can call a DTML Method in the same way as calling a DTML
- Method from a Python expression in DTML; as shown in the
- previous example.
-
- By the Publisher -- When the URL of a DTML Method is fetched
- from Zope, the DTML Method is called by the publisher.
- The REQUEST object is passes as the second argument to the
- Method.
-
- Permission -- 'View'
- """
-
- def manage_edit(data, title):
- """
- Change the DTML Method, replacing its contents with 'data' and
- changing its title.
-
- The data argument may be a file object or a string.
-
- Permission -- 'Change DTML Methods'
- """
-
- def document_src():
- """
- Returns the unrendered source text of the DTML Method.
-
- Permission -- 'View management screens'
- """
-
- def get_size():
- """
- Returns the size of the unrendered source text of the DTML
- Method in bytes.
-
- Permission -- 'View'
- """
-
- __constructor__ = manage_addDTMLMethod
-