edit system driver like DC_Table.php

hi there,

how would i go about changing a system driver like DC_Table.php in an update-safe way? putting it in the templates folder doesn't work, does it?

thanks

No, it won't work. Please take a look how Catalog is made, it uses a custom data container.

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Originally Posted by Tru

No, it won't work. Please take a look how Catalog is made, it uses a custom data container.

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yes, that is correct, but it doesn't help me at all... ;-)

you can rewrite ALL the DCA's to use your new driver, but then you run the risk of breaking standard modules if your driver doesn't have a new feature.

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Originally Posted by thyon

you can rewrite ALL the DCA's to use your new driver, but then you run the risk of breaking standard modules if your driver doesn't have a new feature.

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which isn't really update-safe, i would say :-)

Its' update safe of course, as your rewrites will be in dcaconfig.php not in each DCA file.

You're omitting to explain to us what you're trying to do, there are many things you can add/modify without having to resort to modifying the core DC_Table list/editor (which is one of the best around): buttons and function to the header and buttons to each record, load callbacks, list callbacks, group calbacks, etc...

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Originally Posted by thyon

Its' update safe of course, as your rewrites will be in dcaconfig.php not in each DCA file.

You're omitting to explain to us what you're trying to do, there are many things you can add/modify without having to resort to modifying the core DC_Table list/editor (which is one of the best around): buttons and function to the header and buttons to each record, load callbacks, list callbacks, group calbacks, etc...

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you are right, maybe that is a better way to ask. i just want to completely disable the possibility to delete members. did it for the list in dcaconfig, but when choosing 'Edit multiple', a delete button appears at the bottom, coming from DC_Table.php, which is easy to find and comment out, but not update safe...
so if you have another, better idea, i'll take it ;-)

you just specify the 'closed' => true, in the DCA config, then you can no longer delete anything from that table.

EDIT: no that only permits no more adding records, so I guess you have to use a ondelete_callback to intercept the delete function.

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Originally Posted by thyon

you just specify the 'closed' => true, in the DCA config, then you can no longer delete anything from that table.

EDIT: no that only permits no more adding records, so I guess you have to use a ondelete_callback to intercept the delete function.

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good idea, but that would show the user the delete button and then on delete it tells them 'you cannot', which is weird... i would prefer to not show it in the first place, if possible... but thanks for your replies so far.

It'll be possible to override the delete and edit multiple buttons to hide.

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Originally Posted by thyon

It'll be possible to override the delete and edit multiple buttons to hide.

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no, not really. that's kind of the point :D

Code:

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i just want to completely disable the possibility to delete members. did it for the list in dcaconfig, but when choosing 'Edit multiple', a delete button appears at the bottom, coming from DC_Table.php, which is easy to find and comment out, but not update safe...

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use the onload_callback in the dca to load a custom css that hides the delete button
then use the ondelete_callback to be sure that even if an user makes a "delete request" it won't work.

I meant, that you can simply remove the delete button completely, by removing it's button entry by unsetting the delete button array completely -- you don't even need to use CSS then... you can ALSO use the ondelete to ensure that it doesn't perform that action. I'm not sure why we can't just make a table set to ONLY perform certain functions.... you should add that as a feature request.

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Originally Posted by thyon

I meant, that you can simply remove the delete button completely, by removing it's button entry by unsetting the delete button array completely -- you don't even need to use CSS

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can you *please* tell me how to remove the delete button illustrated below without using css *and* without edit the DC_Table.php

http://easycaptures.com/fs/uploaded/528/6530446037.jpg

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Originally Posted by thyon

then ... you can ALSO use the ondelete to ensure that it doesn't perform that action.

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I guess the above is a sort of correction, I guess also it won't help the O.P.

great answers. thank you guys. i will play with the suggestions and probably post what i did finally. thanks.

I was talking about the delete button next to each entry (the "X"), as that can also delete. The DC_Table Driver doesn't have a check or variable to remove the multiple delete button. I think leo should introduce a simple matrix of allows operations into the config and then also check this to enable/disable the standard buttons and also remove the multiple buttons.

that one was actually easy, one line in the dcaconfig:

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unset( $GLOBALS['TL_DCA']['tl_member']['list']['operations']['delete'] );

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and the red X is gone ;-)

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Originally Posted by ga.n

use the onload_callback in the dca to load a custom css

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and how the heck would I do that???

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Originally Posted by alexB

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Originally Posted by ga.n

use the onload_callback in the dca to load a custom css

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and how the heck would I do that???

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take a look at this: http://www.contao.org/callbacks.html

and this: http://contao-factory.com/code-detail.html?id=4

bingo!
the last one was the info i was lacking / didn't know...

thanks, you rule!