Closes #714 allow multiple filters with same key

[timgl]

Changes

• Add Property model in array form: [{key, value, operator, type}]
  • Type will become important for Filter by person properties #737
• Make PropertyFilters use new format
• Backwards compatibility with the old format
• Added filtering by person property in backend (not yet in frontend to avoid PR getting too big)

Checklist

• All querysets/queries filter by Team (if applicable)
• Backend tests (if applicable)

[mariusandra]

I'm getting an error saving and then loading funnels with this.

AttributeError at /api/funnel/1/ --> 'list' object has no attribute 'items'
  File "/Users/marius/Projects/PostHog/posthog/posthog/utils.py", line 76, in properties_to_Q
    for key, value in properties.items():

The rest seems fine.

And running through all these steps manually makes me wish for integration tests :). We'll miss something one of these days...

[mariusandra]

So like I wrote in the comment, funnels are broken.

Since funnels store these properties as JSON, all the old funnels still work, but if I save any of them, they will break.

[timgl]

Should be good now 👍

[mariusandra]

Works much better with funnels! I just found this issue now when I removed filters:

It would save and work fine, just it would show two "new filter" boxes

[timgl]

good catch, that's fixed now