Re: [Zope] - How do I publish this object?

8 Dec 1998


      ...
I believe this was asked yesterday, but I don't recall seeing an answer
posted yet, so I'll ask again, in case it wasn't noticed by those with
enough Zope Zen.
While I was in the shower last night (what is it about the shower with this
group?) it dawned on me that what I don't get about Zope is how to publish
an object in much the same way I would have done using Bobo.
As an example, appended is a small module, cal.py, which uses the Unix cal
command to generate an ASCII calendar.  How would I make that available
through Zope?  Seeing how that is done would be a big step forward for me.
Thx,
Skip Montanaro	   | Mojam: "Uniting the World of Music" http://www.mojam.com/
skip@calendar.com  | Musi-Cal: http://concerts.calendar.com/
518-372-5583
It's quite easy.  There are some things missing from my example here that
you will need to create, alot of dtml and an __init__.py file which sets up some
stuff and contains the ImageFile references to any icons you plan to use.  Notice
I just droped this stuff like iceing onto your Calendar cake.  It looks daunting
now but after you see it a few times lots of the fluf because invisible to you.

Michel
...
"""
dumb Calendar module
"""
from Globals import HTMLFile
import OFS.SimpleItem, Persistence, Acquisition, AccessControl.Role
...
import os
class Calendar(
   OFS.SimpleItem.Item,
   Persistence.Persistent,
   Acquisition.Implicit,
   AccessControl.Role.RoleManager,
   ):
    """calendar class"""
meta_type='MyCalendar'
	icon='misc_/MyCalendar/folder

# These are added to your manage screens by lib/python/App/manage_tabs.dtml
        manage_options=(
                {'label':'Contents',   'action':'manage_main'},
                {'label':'Properties', 'action':'manage_propertiesForm'},
                {'label':'View',       'action':''},
                {'label':'Security',   'action':'manage_access'},
                )

# These define the atomic operations that can be done with this module
# These end up in your security screen 'manage_access'
        __ac_permissions__=(
                ('View management screens', ('manage_tabs','manage_main')),
                ('Change permissions', ('manage_access',)),
                ('Change Calendar Settings', ('manage_edit',)),
                ('View Calendar',   ('',)),
                )

	def __init__(self, id, title='', REQUEST):
		self.id = id
		self.title=title

	# need an index view
	index_html=HTMLFile('index_html', globals())

	# this is your management screen
	manage_main=HTMLFile('main', globals())

	# returned when the manage clicks on 'Properties' (see permissions above)
	manage_propertiesForm=HTMLFile('editprops', globabls())

	def manage_edit(self, id, name, REQUEST:
		""" this is the action for the form in manage_propertiesForm
		"""
		self.title=title
		if REQUEST is not None:
			return self.manage_main(self, REQUEST)
...
def show(self, year, month=0):
        """return plain ASCII calendar
You probably want to convert this to a function that returns
	a DTML file that lays out the calendar and fills in some
	<!--#var--> tags.
...
month == 0 ==> display calendar for entire year
        """
        if year < 1 or year > 9999:
            raise ValueError, ("year out of range: %d" % year)
        if month < 0 or month > 12:
            raise ValueError, ("month out of range: %d" % month)
if month:
            cal = os.popen("cal %s %s" % (month, year)).read()
        else:
            cal = os.popen("cal %s" % year).read()
        return cal

Re: [Zope] - How do I publish this object?

Michel Pelletier