Component doesn't save, delete or edit correctly - Joomla! Forum - community, help and support

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hi everyone,
i new joomla (3.0) extension development still learning. making own component has purpose show images additionel information connected categories.

the component installs correctly , displays correctly, problem(s) have are:
1. in first view delete button doesnt work should. performs query doesnt delete item(s)
2. in second view can add and/ or edit items none of buttons work. after weeks of searching , comparing still can't see doing wrong. getting annoying because can't figure out doing wrong.

i think both problems have same cause i'm not sure.
so question if can me. want learn how create own basic component every welcome. appreciate if me! in attachment .zip file.

excuse me faulty english if there any, i'm holland have excuse. :p

yours sincerely,
stefan

anyone? :)





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