icalendar devel - Nov 2005 - Error parsing ical file created using Apple''s Ical app

Hello,

I have a problem parsing an ical file created by the Ical app in MacOSX.
I have a very small script created just for test purpose looking like this:
begin
     require ''rubygems''
     require_gem ''icalendar'', ">= 0.96"
rescue LoadError
     require ''icalendar''
end
require "date"

calfile = File.open("Gitte.ics")
calparser = Icalendar::Parser.new(calfile)
cals = calparser.parse
cal = cals.first

Running it produces the following traceback:
/usr/local/lib/ruby/gems/1.8/gems/icalendar-0.96.2/lib/icalendar/component.rb:305:in
`method_missing'': NoMethodError (NoMethodError)
         from 
/usr/local/lib/ruby/gems/1.8/gems/icalendar-0.96.2/lib/icalendar/parser.rb:221:in
`send''
         from 
/usr/local/lib/ruby/gems/1.8/gems/icalendar-0.96.2/lib/icalendar/parser.rb:221:in
`parse_component''
         from 
/usr/local/lib/ruby/gems/1.8/gems/icalendar-0.96.2/lib/icalendar/parser.rb:169:in
`parse_component''
         from 
/usr/local/lib/ruby/gems/1.8/gems/icalendar-0.96.2/lib/icalendar/parser.rb:141:in
`parse''
         from icaltest.rb:11

Now I have added some print statements in order to see what goes wrong.
The last field inspected looks like this:
Name is LAST-MODIFIED
value is 20050814T220229Z
Params is

Any hints?
It''s the latest version of icalendar I use.

Greetings,
Gitte Wange

Hi Gitte,
  Thanks for bringing this up.  I had incorrectly specified the property
name in the definitions of some of the calendar components.  I think
I''ve fixed the problem, and I''m packaging things up right now.
You
should be able to do a gem update within a couple hours.  Please let me
know how it works, and if you have any questions about the library feel
free to post to the list.

-Jeff

On Wed, 2005-11-23 at 18:56 +0100, Gitte Wange wrote:
> Hello,
> 
> I have a problem parsing an ical file created by the Ical app in MacOSX.
> I have a very small script created just for test purpose looking like this:
> begin
>      require ''rubygems''
>      require_gem ''icalendar'', ">= 0.96"
> rescue LoadError
>      require ''icalendar''
> end
> require "date"
> 
> calfile = File.open("Gitte.ics")
> calparser = Icalendar::Parser.new(calfile)
> cals = calparser.parse
> cal = cals.first
> 
> Running it produces the following traceback:
>
/usr/local/lib/ruby/gems/1.8/gems/icalendar-0.96.2/lib/icalendar/component.rb:305:in
> `method_missing'': NoMethodError (NoMethodError)
>          from 
>
/usr/local/lib/ruby/gems/1.8/gems/icalendar-0.96.2/lib/icalendar/parser.rb:221:in
> `send''
>          from 
>
/usr/local/lib/ruby/gems/1.8/gems/icalendar-0.96.2/lib/icalendar/parser.rb:221:in
> `parse_component''
>          from 
>
/usr/local/lib/ruby/gems/1.8/gems/icalendar-0.96.2/lib/icalendar/parser.rb:169:in
> `parse_component''
>          from 
>
/usr/local/lib/ruby/gems/1.8/gems/icalendar-0.96.2/lib/icalendar/parser.rb:141:in
> `parse''
>          from icaltest.rb:11
> 
> Now I have added some print statements in order to see what goes wrong.
> The last field inspected looks like this:
> Name is LAST-MODIFIED
> value is 20050814T220229Z
> Params is
> 
> Any hints?
> It''s the latest version of icalendar I use.
> 
> Greetings,
> Gitte Wange
> _______________________________________________
> icalendar-devel mailing list
> icalendar-devel at rubyforge.org
> http://rubyforge.org/mailman/listinfo/icalendar-devel

I also forgot to mention that in the api when you are accessing
properties like "LAST-MODIFIED" the accessors use an underscore
because
dash causes a parse error in ruby.

So, you would do:

alfile = File.open("Gitte.ics")
calparser = Icalendar::Parser.new(calfile)
cals = calparser.parse
cal = cals.first
my_date_time = cal.last_modified

-Jeff

On Tue, 2005-11-29 at 19:32 +0100, Jeff Rose wrote:
> Hi Gitte,
>   Thanks for bringing this up.  I had incorrectly specified the property
> name in the definitions of some of the calendar components.  I think
> I''ve fixed the problem, and I''m packaging things up right
now.  You
> should be able to do a gem update within a couple hours.  Please let me
> know how it works, and if you have any questions about the library feel
> free to post to the list.
> 
> -Jeff
> 
> On Wed, 2005-11-23 at 18:56 +0100, Gitte Wange wrote:
> > Hello,
> > 
> > I have a problem parsing an ical file created by the Ical app in
MacOSX.
> > I have a very small script created just for test purpose looking like
this:
> > begin
> >      require ''rubygems''
> >      require_gem ''icalendar'', ">= 0.96"
> > rescue LoadError
> >      require ''icalendar''
> > end
> > require "date"
> > 
> > calfile = File.open("Gitte.ics")
> > calparser = Icalendar::Parser.new(calfile)
> > cals = calparser.parse
> > cal = cals.first
> > 
> > Running it produces the following traceback:
> >
/usr/local/lib/ruby/gems/1.8/gems/icalendar-0.96.2/lib/icalendar/component.rb:305:in
> > `method_missing'': NoMethodError (NoMethodError)
> >          from 
> >
/usr/local/lib/ruby/gems/1.8/gems/icalendar-0.96.2/lib/icalendar/parser.rb:221:in
> > `send''
> >          from 
> >
/usr/local/lib/ruby/gems/1.8/gems/icalendar-0.96.2/lib/icalendar/parser.rb:221:in
> > `parse_component''
> >          from 
> >
/usr/local/lib/ruby/gems/1.8/gems/icalendar-0.96.2/lib/icalendar/parser.rb:169:in
> > `parse_component''
> >          from 
> >
/usr/local/lib/ruby/gems/1.8/gems/icalendar-0.96.2/lib/icalendar/parser.rb:141:in
> > `parse''
> >          from icaltest.rb:11
> > 
> > Now I have added some print statements in order to see what goes
wrong.
> > The last field inspected looks like this:
> > Name is LAST-MODIFIED
> > value is 20050814T220229Z
> > Params is
> > 
> > Any hints?
> > It''s the latest version of icalendar I use.
> > 
> > Greetings,
> > Gitte Wange
> > _______________________________________________
> > icalendar-devel mailing list
> > icalendar-devel at rubyforge.org
> > http://rubyforge.org/mailman/listinfo/icalendar-devel
> 
> _______________________________________________
> icalendar-devel mailing list
> icalendar-devel at rubyforge.org
> http://rubyforge.org/mailman/listinfo/icalendar-devel

Jeff Rose wrote:
> Hi Gitte,
>   Thanks for bringing this up.  I had incorrectly specified the property
> name in the definitions of some of the calendar components.  I think
> I''ve fixed the problem, and I''m packaging things up right
now.  You
> should be able to do a gem update within a couple hours.  Please let me
> know how it works, and if you have any questions about the library feel
> free to post to the list.
> 
> -Jeff
I''m very very sorry to inform you that I still get the same error :-(
I have not changed anything in my script, just updated the gem.
I can see it''s using the new gem from the traceback:

gitte at barcrawl ~]$ ruby icaltest.rb
/usr/local/lib/ruby/gems/1.8/gems/icalendar-0.96.3/lib/icalendar/component.rb:305:in
`method_missing'': NoMethodError (NoMethodError)
         from 
/usr/local/lib/ruby/gems/1.8/gems/icalendar-0.96.3/lib/icalendar/parser.rb:211:in
`send''
         from 
/usr/local/lib/ruby/gems/1.8/gems/icalendar-0.96.3/lib/icalendar/parser.rb:211:in
`parse_component''
         from 
/usr/local/lib/ruby/gems/1.8/gems/icalendar-0.96.3/lib/icalendar/parser.rb:172:in
`parse_component''
         from 
/usr/local/lib/ruby/gems/1.8/gems/icalendar-0.96.3/lib/icalendar/parser.rb:168:in
`parse_component''
         from 
/usr/local/lib/ruby/gems/1.8/gems/icalendar-0.96.3/lib/icalendar/parser.rb:141:in
`parse''
         from icaltest.rb:11

It''s so weird ...

Greetings,
Gitte Wange

> 
> On Wed, 2005-11-23 at 18:56 +0100, Gitte Wange wrote:
> 
>>Hello,
>>
>>I have a problem parsing an ical file created by the Ical app in MacOSX.
>>I have a very small script created just for test purpose looking like
this:
>>begin
>>     require ''rubygems''
>>     require_gem ''icalendar'', ">= 0.96"
>>rescue LoadError
>>     require ''icalendar''
>>end
>>require "date"
>>
>>calfile = File.open("Gitte.ics")
>>calparser = Icalendar::Parser.new(calfile)
>>cals = calparser.parse
>>cal = cals.first
>>
>>Running it produces the following traceback:
>>/usr/local/lib/ruby/gems/1.8/gems/icalendar-0.96.2/lib/icalendar/component.rb:305:in
>>`method_missing'': NoMethodError (NoMethodError)
>>         from 
>>/usr/local/lib/ruby/gems/1.8/gems/icalendar-0.96.2/lib/icalendar/parser.rb:221:in
>>`send''
>>         from 
>>/usr/local/lib/ruby/gems/1.8/gems/icalendar-0.96.2/lib/icalendar/parser.rb:221:in
>>`parse_component''
>>         from 
>>/usr/local/lib/ruby/gems/1.8/gems/icalendar-0.96.2/lib/icalendar/parser.rb:169:in
>>`parse_component''
>>         from 
>>/usr/local/lib/ruby/gems/1.8/gems/icalendar-0.96.2/lib/icalendar/parser.rb:141:in
>>`parse''
>>         from icaltest.rb:11
>>
>>Now I have added some print statements in order to see what goes wrong.
>>The last field inspected looks like this:
>>Name is LAST-MODIFIED
>>value is 20050814T220229Z
>>Params is
>>
>>Any hints?
>>It''s the latest version of icalendar I use.
>>
>>Greetings,
>>Gitte Wange
>>_______________________________________________
>>icalendar-devel mailing list
>>icalendar-devel at rubyforge.org
>>http://rubyforge.org/mailman/listinfo/icalendar-devel
> 
> 
> _______________________________________________
> icalendar-devel mailing list
> icalendar-devel at rubyforge.org
> http://rubyforge.org/mailman/listinfo/icalendar-devel

Gitte Wange wrote:
> Jeff Rose wrote:
> 
>>Hi Gitte,
>>  Thanks for bringing this up.  I had incorrectly specified the property
>>name in the definitions of some of the calendar components.  I think
>>I''ve fixed the problem, and I''m packaging things up
right now.  You
>>should be able to do a gem update within a couple hours.  Please let me
>>know how it works, and if you have any questions about the library feel
>>free to post to the list.
>>
>>-Jeff
> 
> 
> I''m very very sorry to inform you that I still get the same error
:-(
> I have not changed anything in my script, just updated the gem.
> I can see it''s using the new gem from the traceback:
[SNIP traceback]

Are you sure you updated the parser.rb file?
diff icalendar-0.96.2/lib/icalendar/parser.rb 
icalendar-0.96.3/lib/icalendar/parser.rb

produces no output.

But maybe that''s not the file you have changed.

Greetings,
Gitte Wange

No, it wasn''t a change in the parser file, but in the different
component definitions.  I have some LAST-MODIFIED properties in my test
calendar though so I don''t know what is causing this.  Could you send a
copy of the calendar that crashes, or at least a portion of it?

Thanks,
Jeff

On Wed, 2005-11-30 at 00:33 +0100, Gitte Wange wrote:
> Gitte Wange wrote:
> > Jeff Rose wrote:
> > 
> >>Hi Gitte,
> >>  Thanks for bringing this up.  I had incorrectly specified the
property
> >>name in the definitions of some of the calendar components.  I
think
> >>I''ve fixed the problem, and I''m packaging things
up right now.  You
> >>should be able to do a gem update within a couple hours.  Please
let me
> >>know how it works, and if you have any questions about the library
feel
> >>free to post to the list.
> >>
> >>-Jeff
> > 
> > 
> > I''m very very sorry to inform you that I still get the same
error :-(
> > I have not changed anything in my script, just updated the gem.
> > I can see it''s using the new gem from the traceback:
> 
> [SNIP traceback]
> 
> Are you sure you updated the parser.rb file?
> diff icalendar-0.96.2/lib/icalendar/parser.rb 
> icalendar-0.96.3/lib/icalendar/parser.rb
> 
> produces no output.
> 
> But maybe that''s not the file you have changed.
> 
> Greetings,
> Gitte Wange
> _______________________________________________
> icalendar-devel mailing list
> icalendar-devel at rubyforge.org
> http://rubyforge.org/mailman/listinfo/icalendar-devel

Ok, after a bit of debugging with my most complicated test case yet
I''ve
fixed the problems.  When I added support for timezones a while back I
introduced some interesting bugs that only popped up when components
showed up in a specific order in a file.  (I was accidentally
re-defining a class variable of a parent class in a derived
class...Standard < Timezone < Component)

So, I''ve tested with the problem calendar in a couple ways and I hope
the new version on rubyforge will solve all problems :-)

Ciao,
Jeff

Jeff Rose wrote:
> Ok, after a bit of debugging with my most complicated test case yet
I''ve
> fixed the problems.  When I added support for timezones a while back I
> introduced some interesting bugs that only popped up when components
> showed up in a specific order in a file.  (I was accidentally
> re-defining a class variable of a parent class in a derived
> class...Standard < Timezone < Component)
> 
> So, I''ve tested with the problem calendar in a couple ways and I
hope
> the new version on rubyforge will solve all problems :-)
> 
> Ciao,
> Jeff
WAY to cool!
It works - i can parse the icalendar file!

Now i just need to figure out how to fetch/put it using webdav ;)

Greetings,
Gitte Wange

Great!  As for the webdav, do you have a plan yet for what you are going
to be using?  There was some discussion on ruby-talk a while back about
putting together a calendar server using webdav on top of webrick, but I
haven''t heard anything since.  Just looking around right now I saw that
Why created a DAV gem for a WebDAV plugin for Webrick (gem install
webrick-webdav)  I was just looking around and it seems the CalDAV
specification has been progressing also.  A couple projects have
implementations so I think what they''ve got so far is just about
complete.  The spec is under 30 pages so it might not be too hard to put
on top of the current dav, xml, ical, and ActionMailer stuff...  

I might have a look at it this weekend actually.  If anyone else is
interested it would be great to do some brainstorming.

-Jeff

On Thu, 2005-12-01 at 00:49 +0100, Gitte Wange wrote:
> Jeff Rose wrote:
> > Ok, after a bit of debugging with my most complicated test case yet
I''ve
> > fixed the problems.  When I added support for timezones a while back I
> > introduced some interesting bugs that only popped up when components
> > showed up in a specific order in a file.  (I was accidentally
> > re-defining a class variable of a parent class in a derived
> > class...Standard < Timezone < Component)
> > 
> > So, I''ve tested with the problem calendar in a couple ways
and I hope
> > the new version on rubyforge will solve all problems :-)
> > 
> > Ciao,
> > Jeff
> 
> WAY to cool!
> It works - i can parse the icalendar file!
> 
> Now i just need to figure out how to fetch/put it using webdav ;)
> 
> Greetings,
> Gitte Wange
> _______________________________________________
> icalendar-devel mailing list
> icalendar-devel at rubyforge.org
> http://rubyforge.org/mailman/listinfo/icalendar-devel

Jeff Rose wrote:
> Great!  As for the webdav, do you have a plan yet for what you are going
> to be using?  There was some discussion on ruby-talk a while back about
> putting together a calendar server using webdav on top of webrick, but I
> haven''t heard anything since.  Just looking around right now I saw
that
> Why created a DAV gem for a WebDAV plugin for Webrick (gem install
> webrick-webdav)  I was just looking around and it seems the CalDAV
> specification has been progressing also.  A couple projects have
> implementations so I think what they''ve got so far is just about
> complete.  The spec is under 30 pages so it might not be too hard to put
> on top of the current dav, xml, ical, and ActionMailer stuff...  
> 
> I might have a look at it this weekend actually.  If anyone else is
> interested it would be great to do some brainstorming.
> 
> -Jeff
Well ATM I have all my ical files placed on an Apache server accessing 
them using WebDav so it would be obvious to just stay on that path.
What I need is a sort of webdav-client module for ruby - I found some 
code snippets that I need to review.

All of this calendaring stuff is ATM implemented in a time management 
product (rtime) that I work on, but I''m thinking about seperating it
out
as a seperate product. (I''m pretty new to rails products, release
styles
etc so it might take me a bit time to get hold on all these things).

I would be very interested in a brainstorm - perhaps I have time this 
weekend.

Greetings,
Gitte Wange