[xwiki-devs] Using an event Listener to modify object variables

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Xwiki_beginner

11 Jan 2013 11 Jan '13

3:13 p.m.

Hello, I am pretty new to Xwiki and Groovy/Velocity, but made a bit of progress in what I want to do with it. however I can't find the information I need to move onto the last step so i can start using it. I have a page which includes an object, which has a static list of states. Upon saving the page I want to update that object to a different state. I have gone through the tutorial of the creating an event listener in Groovy, and have a basic event listener at the moment. what I am not quite understanding is how I can use that event listener to access the static list and change it to another state upon saving. I couldn't really find any documentation about what I am trying to do, but please point me in the right direction if I am wrong! I am assuming I will need to do some extra code as by changing the variable, I will need to save the document again. Thanks very much in advance. -- View this message in context: http://xwiki.475771.n2.nabble.com/Using-an-event-Listener-to-modify-object-… Sent from the XWiki- Dev mailing list archive at Nabble.com.

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Marius Dumitru Florea

12 Jan 12 Jan

10:18 a.m.

On Fri, Jan 11, 2013 at 4:13 PM, Xwiki_beginner <cronvek(a)gmail.com> wrote:

...

I couldn't really find any documentation about what I am trying to do, but

Have you seen http://extensions.xwiki.org/xwiki/bin/view/Extension/Title+Post+Processing+… or http://extensions.xwiki.org/xwiki/bin/view/Extension/Create+Object+with+Con… ? It's a good thing to search for code snippets on http://extensions.xwiki.org . Hope this helps, Marius

...

please point me in the right direction if I am wrong! I am assuming I will need to do some extra code as by changing the variable, I will need to save the document again. Thanks very much in advance. -- View this message in context: http://xwiki.475771.n2.nabble.com/Using-an-event-Listener-to-modify-object-… Sent from the XWiki- Dev mailing list archive at Nabble.com. _______________________________________________ devs mailing list devs(a)xwiki.org http://lists.xwiki.org/mailman/listinfo/devs

Xwiki_beginner

15 Jan 15 Jan

3:19 p.m.

Thanks very much for those! I hadn't realised they were what I was looking for (I had found the tile post processing one before, but not the other one). I went away from the event listener and worked on a few other bits I had to get done. I will go give them another read now. Just to make sure I am understanding this all correctly, and apologises for these probably basic questions, I am assuming that to use the event listener I am going to need a scheduler (like the IRC bot demo code) so that it starts up automatically. I am also assuming I don't need to do anything to the page in question to trigger the event listener (other than save it!). Thanks again. On 12 January 2013 09:18, Marius Dumitru Florea [via XWiki] < ml-node+s475771n7583266h33(a)n2.nabble.com> wrote:

...

On Fri, Jan 11, 2013 at 4:13 PM, Xwiki_beginner <[hidden email]<http://user/SendEmail.jtp?type=node&node=7583266&i=0>> wrote:

Hello, I am pretty new to Xwiki and Groovy/Velocity, but made a bit of progress in what I want to do with it. however I can't find the

information

I need to move onto the last step so i can start using it. I have a page which includes an object, which has a static list of

states.

Upon saving the page I want to update that object to a different state. I have gone through the tutorial of the creating an event listener in Groovy, and have a basic event listener at the moment. what I am not

quite

understanding is how I can use that event listener to access the static

list

and change it to another state upon saving.

I couldn't really find any documentation about what I am trying to do,

but Have you seen http://extensions.xwiki.org/xwiki/bin/view/Extension/Title+Post+Processing+… or http://extensions.xwiki.org/xwiki/bin/view/Extension/Create+Object+with+Con… ? It's a good thing to search for code snippets on http://extensions.xwiki.org . Hope this helps, Marius

please point me in the right direction if I am wrong! I am assuming I

will

need to do some extra code as by changing the variable, I will need to

save

the document again. Thanks very much in advance. -- View this message in context:

http://xwiki.475771.n2.nabble.com/Using-an-event-Listener-to-modify-object-…

Sent from the XWiki- Dev mailing list archive at Nabble.com. _______________________________________________ devs mailing list [hidden email] <http://user/SendEmail.jtp?type=node&node=7583266&i=1> http://lists.xwiki.org/mailman/listinfo/devs

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Marius Dumitru Florea

16 Jan 16 Jan

8:37 a.m.

On Tue, Jan 15, 2013 at 4:19 PM, Xwiki_beginner <cronvek(a)gmail.com> wrote:

...

Yes, but if you're brave enough you can implement the event listener as a wiki component ( http://extensions.xwiki.org/xwiki/bin/view/Extension/WikiComponent+Module ) which will be registered automatically (even after a server restart) without the need of a scheduler job.

...

I am also assuming I don't need to do anything to the page in question to trigger the event listener (other than save it!).

Yes, once the event listener is registered, each page save will trigger it. Hope this helps, Marius

...

Thanks again. On 12 January 2013 09:18, Marius Dumitru Florea [via XWiki] < ml-node+s475771n7583266h33(a)n2.nabble.com> wrote:

On Fri, Jan 11, 2013 at 4:13 PM, Xwiki_beginner <[hidden email]<http://user/SendEmail.jtp?type=node&node=7583266&i=0>> wrote:

Hello, I am pretty new to Xwiki and Groovy/Velocity, but made a bit of progress in what I want to do with it. however I can't find the

information

I need to move onto the last step so i can start using it. I have a page which includes an object, which has a static list of

states.

quite

understanding is how I can use that event listener to access the static

list

and change it to another state upon saving.

I couldn't really find any documentation about what I am trying to do,

please point me in the right direction if I am wrong! I am assuming I

will

need to do some extra code as by changing the variable, I will need to

save

the document again. Thanks very much in advance. -- View this message in context:

http://xwiki.475771.n2.nabble.com/Using-an-event-Listener-to-modify-object-…

-- Liz Mackie www.cronvek.com -- View this message in context: http://xwiki.475771.n2.nabble.com/Using-an-event-Listener-to-modify-object-… Sent from the XWiki- Dev mailing list archive at Nabble.com. _______________________________________________ devs mailing list devs(a)xwiki.org http://lists.xwiki.org/mailman/listinfo/devs

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Marius Dumitru Florea
Xwiki_beginner