The appended context diff seems to do what Jim asked for. Here's a simple session: >>> import DateTime, time >>> dt = DateTime.DateTime(time.time()) >>> dt.strftime("%Y-%m-%d") '1999-01-07' >>> getattr(dt, "%Y-%m-%d") <DateTime.DateTime.strftimeFormatter instance at 8116570> >>> getattr(dt, "%Y-%m-%d")() '1999-01-07' (Jim actually did all the work. I made sure the necessary time functions were available at the module level and generated a context diff... :-) Skip Montanaro | Mojam: "Uniting the World of Music" http://www.mojam.com/ skip@calendar.com | Musi-Cal: http://concerts.calendar.com/ 518-372-5583 *** /tmp/DateTime.py.~1~ Wed Jan 6 20:00:11 1999 --- /tmp/DateTime.py Wed Jan 6 20:00:11 1999 *************** *** 101,107 **** import sys,os,regex,DateTimeZone from string import strip,split,upper,lower,atoi,atof,find,join ! from time import time,gmtime,localtime,asctime,tzname from types import InstanceType,IntType,FloatType,StringType --- 101,107 ---- import sys,os,regex,DateTimeZone from string import strip,split,upper,lower,atoi,atof,find,join ! from time import time,gmtime,localtime,asctime,tzname,strftime,mktime from types import InstanceType,IntType,FloatType,StringType *************** *** 854,859 **** --- 854,862 ---- def _validTime(self,h,m,s): return h>=0 and h<=23 and m>=0 and m<=59 and s>=0 and s<=59 + def __getattr__(self, name): + if '%' in name: return strftimeFormatter(self, name) + raise AttributeError, name # Conversion and comparison methods *************** *** 1117,1122 **** --- 1120,1127 ---- """Return the second""" return self._second + def strftime(self, format): + return strftime(format, gmtime(self.timeTime())) # General formats from previous DateTime *************** *** 1294,1299 **** --- 1299,1312 ---- """Convert to floating-point number of days since Jan. 1, 1901 (gmt)""" return float(self._d) + + class strftimeFormatter: + + def __init__(self, dt, format): + self._dt=dt + self._f=format + + def __call__(self): return self._dt.strftime(self._f) # Module methods
In article <199901070107.UAA01736@dolphin.calendar.com>, skip@calendar.com () wrote:
The appended context diff seems to do what Jim asked for. Here's a simple session:
>>> import DateTime, time >>> dt = DateTime.DateTime(time.time()) >>> dt.strftime("%Y-%m-%d") '1999-01-07' >>> getattr(dt, "%Y-%m-%d") <DateTime.DateTime.strftimeFormatter instance at 8116570> >>> getattr(dt, "%Y-%m-%d")() '1999-01-07'
(Jim actually did all the work. I made sure the necessary time functions were available at the module level and generated a context diff... :-)
I'm going to be incredibly dumb now and ask if this can now be accessed through DTML and how. (Oh hi, I'm new here, Zope looks like just the thing I want but I'd appreciate some more obvious documentation and a more transparent approach to object development and implementation. The problem of either publishing the current date or taking a 'last updated' date from a database is just the first I've come across, although it looks like others have at the same time. I'm a perl/CGI veteran looking for a way not to reinvent the wheel for a reasonably idiot proof semi-public music/artist presentation service and if I get my head around it, Zope is the one. A recipe book for the basic functions would be a great help though, and I'll pitch my hand in for anything I can help with) Simon http://www.musicbank.net
Simon> I'm going to be incredibly dumb now and ask if this can now be Simon> accessed through DTML and how. If you apply the patch I posted to the DateTime.py file in the lib/python/DateTime package, yes, you should be able to. As for using it, suppose you call a document template with a DateTime object named start. As Jim pointed out, you could then execute >>> import DocumentTemplate, DateTime, time >>> t = DocumentTemplate.HTML('<!--#var start fmt="%Y/%m/%d"-->') >>> start = DateTime.DateTime(time.time()) >>> t(start=start) '1999/01/07' You will generally have more complex examples than this, but this should serve to demonstrate the capability. Simon> I'm a perl/CGI veteran looking for a way not to reinvent the Simon> wheel for a reasonably idiot proof semi-public music/artist Simon> presentation service and if I get my head around it, Zope is the Simon> one. A recipe book for the basic functions would be a great help Simon> though, and I'll pitch my hand in for anything I can help with) There are tutorials floating around the Zope web site. I'm only using the Z Publisher and DTML pieces at this point, because I don't need all the document and user management stuff that Zope shines at. Also, note my .sig. Perhaps we have something non-Zopish to discuss off-line... Skip Montanaro | Mojam: "Uniting the World of Music" http://www.mojam.com/ skip@calendar.com | Musi-Cal: http://concerts.calendar.com/ 518-372-5583
Simon Greenwood wrote:
In article <199901070107.UAA01736@dolphin.calendar.com>, skip@calendar.com () wrote:
The appended context diff seems to do what Jim asked for. Here's a simple session:
>>> import DateTime, time >>> dt = DateTime.DateTime(time.time()) >>> dt.strftime("%Y-%m-%d") '1999-01-07' >>> getattr(dt, "%Y-%m-%d") <DateTime.DateTime.strftimeFormatter instance at 8116570> >>> getattr(dt, "%Y-%m-%d")() '1999-01-07'
(Jim actually did all the work. I made sure the necessary time functions were available at the module level and generated a context diff... :-)
I'm going to be incredibly dumb now and ask if this can now be accessed through DTML and how.
If you apply Skip's change to the Zope DateTime module (in the DateTime package), restart Zope, and can get a DateTime object (e.g. by calling ZopeTime to get the current date and time) then you should be able to do something like: <!--#var ZopeTime fmt="%Y-%m-%d"--> Skips patch will be included in the next release.
(Oh hi, I'm new here, Zope looks like just the thing I want but I'd appreciate some more obvious documentation
We're working on it. :)
and a more transparent approach to object development and implementation.
I don't know what you mean by this. What do you mean by transparent? What sort of things would you like to be able to do?
The problem of either publishing the current date
See above
or taking a 'last updated' date from a database is just
This is: <!--#var bobobase_modification_time fmt="%Y-%m-%d"--> Note however that this doesn't give the modification time of the document, but rather the modification time of the folder. This is because the current Document objects are meant to be used as methods, not content. A new content document object will be provided in the next release. These two methods illustrate the difficulty of using automagically generated documentation. ZopeTime is defined in the Application class (which heppens not to show up in the on-line help) and is acquired (not inherited) by most objects and, therefore, doesn't show up in the documentation. :( bobobase_modification_time doesn't have the meta-data necessary to make the documentation machinery consider it to be part of the API. Sigh.
the first I've come across, although it looks like others have at the same time. I'm a perl/CGI veteran looking for a way not to reinvent the wheel for a reasonably idiot proof semi-public music/artist presentation service and if I get my head around it, Zope is the one. A recipe book for the basic functions would be a great help though,
We'd be glad to get documentation suggestions. I know it's had to make suggestions when you're still learning what there is to document. I assume that you've looked at alot of the documentation on the Zope site.
and I'll pitch my hand in for anything I can help with)
Great! Jim -- Jim Fulton mailto:jim@digicool.com Technical Director (540) 371-6909 Python Powered! Digital Creations http://www.digicool.com http://www.python.org Under US Code Title 47, Sec.227(b)(1)(C), Sec.227(a)(2)(B) This email address may not be added to any commercial mail list with out my permission. Violation of my privacy with advertising or SPAM will result in a suit for a MINIMUM of $500 damages/incident, $1500 for repeats.
skip@calendar.com wrote:
The appended context diff seems to do what Jim asked for. Here's a simple session:
>>> import DateTime, time >>> dt = DateTime.DateTime(time.time()) >>> dt.strftime("%Y-%m-%d") '1999-01-07' >>> getattr(dt, "%Y-%m-%d") <DateTime.DateTime.strftimeFormatter instance at 8116570> >>> getattr(dt, "%Y-%m-%d")() '1999-01-07'
Thanks. This'll be in the next release. Jim -- Jim Fulton mailto:jim@digicool.com Technical Director (540) 371-6909 Python Powered! Digital Creations http://www.digicool.com http://www.python.org Under US Code Title 47, Sec.227(b)(1)(C), Sec.227(a)(2)(B) This email address may not be added to any commercial mail list with out my permission. Violation of my privacy with advertising or SPAM will result in a suit for a MINIMUM of $500 damages/incident, $1500 for repeats.
participants (3)
-
Jim Fulton -
simong＠cix.co.uk -
skip＠calendar.com