when posting: show recommendations of existing posts (with same inter hash)

[Robert Jäschke]

When a user creates a new post (or edits an existing post?), show next to the posting dialog (where?) other posts that are similar to the post the user is editing. Options for other posts include (in order of importance):

1. posts from the same user with the same inter hash
2. posts from other users with the same intra hash
3. posts from other users with the same inter hash
4. other potentially relevevant posts

Option 1 should be implemented first. The posts should be shown in a non-obtrusive way, suggesting to the user that he/she might already have the post and instead might want to edit the other post.

We also need to decide, how the transition from the posts currently edited to the other post is handled:

1. The existing form data is replaced by the data from the other post. (This would be the quickest solution for the user and would also allow to keep/show/highlight differences in the form fields. This process is difficult, though, since we would need to decide which data to keep and which to replace.)
2. The user is redirected to the edit dialogue for the other post. (This is the trivial solution.)

(are there other meaningful options?)

[Robert Jäschke]

Would be a nice Probeaufgabe!