Question

how to restrict new tags creation and force the users to use pre-defined tags for raising the question

Answer 1

One solution would be to use categories, which are essentially the same as predefined tags.

My Tagging Tools plugin may help with the first point, for v1.4+. You can prevent users below a certain number of points from creating new tags. If you set the points really high it would apply to everyone.

https://github.com/svivian/q2a-tagging-tools (click ZIP on the left to download it)

Comments

"Minimum reputation" option doesn't work. Can you please fix this.

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Maybe this issue's comments can help :
https://github.com/svivian/q2a-tagging-tools/issues/8

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That work. I have download new copy from this site

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When I try create new post and try to create new tags i was getting error message saying I cant do this as i need 300 points. even when i try create new post with new tags with register user i get same error mesages. for some reason when spammers are posting they are able to create new tags. dont understand how they are able to do this.

Answer 2

This will be possible in Q2A 1.5 using a filter module in a plugin. This seems to be a common request so perhaps someone will develop this plugin soon!

Comments

Gideon - has this filter module been created? This is like the "prefix" that you see in many places and also acts as a separate taxonomy. Funny that I commented on this issue almost 2 years ago!

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Try the Tagging Tools plugin by Scott: https://github.com/svivian/q2a-tagging-tools

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Thanks - I took a look at this. I guess now thinking about it again, with some template modding it could work. Ideally going forward there should be a better way of handling this, e.g. a dropdown list, etc. I'll have to let users know the different tag options they could use or they will be guessing what options they have. Thanks!

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This is still not working. I have setup the plugin but all new user can create new plugin without any error.

Any update when this plugin "Minimum reputation" option will be fixed