Plugin that insert <img scr="..."> tag to the begining of an article before save

[LoZo]

Hello,

Before I start  to program I would like to know if it is possible to make a plugin that insert a html tag to the begining of an article only in selected categories (Category News). Or even better set image as an intro image?

I read that joomla has some events...onContentBeforeSave. But how can I manipulate the arcticle? Some example will be appreciate.

Thanks 

[Seth Warburton]

You know that you can already set intro images using the existing article options, right?

[ced1870]

+1 with Seth, because anyway you will have to set the image url somewhere
CEd

[LoZo]

Yes I know but I need this for the front site users which are posting news. Because it will be the same image for every article which goes to the news category and I don't want to repeat that think everytime someone post a news.

Dne ponedeljek, 08. december 2014 11:55:26 UTC+1 je oseba Seth Warburton napisala:

[Sergio Manzi]

LoZo, I strongly advice you to buy and read the "Learning Joomla! 3 Extension Development" book by Tim Plummer (Packt Publishing, 2013).
I first bough it on Amazon (Kindle format) but found it to be quite unreadable in that format. Then I bought the pdf version directly from PAKT and been happy since!

Sergio

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[Matt Thomas]

I'd suggest you take a look at https://docs.joomla.org/Plugin/Events, specifically the Content events. It sounds like you want the before or after display title events.

Best,

Matt Thomas
203.632.9322
http://betweenbrain.com/

Sent from mobile. Please pardon any typos or brevity.

[LoZo]

Thanks to everyone but I think I found a solution which will help me to do the plugin.

 https://docs.joomla.org/Make_changes_to_an_article_automatically_using_a_plugin

Dne ponedeljek, 08. december 2014 11:37:10 UTC+1 je oseba LoZo napisala:

[Seth Warburton]

If it is the same image for every article then you can could use css in your plugin and add it as a background image to the :before psuedo-element. 

This will require only a single css declaration and semantically might be a better fit anyway, because if it is the same image for every article it may be considered more decorative than informational.

If this is something you will only do on a single site, then you could just add that to the template css directly.

[Sergio Manzi]

Elegant!