ConfigContext data migration and make sure the SiteLocationType.content_types is set to allow all Location ContentTypes

[HanlinMiao]

Closes: N/A

What's Changed

1. Migrate ConfigContext regions and sites data to ConfigContext.locations.
2. Ensure the new "Site" LocationType allows all ContentTypes allowed by Location (FeatureQuery("locations").get_query()).
3. Tested thoroughly and did what it was intended.

TODO

• Explanation of Change(s)
• Added change log fragment(s) (for more information see the documentation)
• Attached Screenshots, Payload Example
• Unit, Integration Tests
• Documentation Updates (when adding/changing features)
• Example Plugin Updates (when adding/changing features)
• Outline Remaining Work, Constraints from Design

[glennmatthews]

I think?

Suggested change

	original_locs = list(cc.locations.all())
	locations = region_locs + original_locs
	cc.locations.set(locations)
	cc.locations.add(region_locs)

[HanlinMiao]

.add() does not work well with lists or querysets apparently.

>>> ConfigContext.objects.first()
<ConfigContext: 123>
>>> c = ConfigContext.objects.first()
>>> c.locations.add(Location.objects.all()
Traceback (most recent call last):
  File "/usr/local/lib/python3.7/site-packages/django/db/models/fields/__init__.py", line 2434, in to_python
    return uuid.UUID(**{input_form: value})
  File "/usr/local/lib/python3.7/uuid.py", line 157, in __init__
    hex = hex.replace('urn:', '').replace('uuid:', '')
AttributeError: 'LocationQuerySet' object has no attribute 'replace'

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<console>", line 1, in <module>
  File "/usr/local/lib/python3.7/site-packages/django/db/models/fields/related_descriptors.py", line 952, in add
    through_defaults=through_defaults,
  File "/usr/local/lib/python3.7/site-packages/django/db/models/fields/related_descriptors.py", line 1126, in _add_items
    target_ids = self._get_target_ids(target_field_name, objs)
  File "/usr/local/lib/python3.7/site-packages/django/db/models/fields/related_descriptors.py", line 1073, in _get_target_ids
    target_ids.add(target_field.get_prep_value(obj))
  File "/usr/local/lib/python3.7/site-packages/django/db/models/fields/related.py", line 977, in get_prep_value
    return self.target_field.get_prep_value(value)
  File "/usr/local/lib/python3.7/site-packages/django/db/models/fields/__init__.py", line 2418, in get_prep_value
    return self.to_python(value)
  File "/usr/local/lib/python3.7/site-packages/django/db/models/fields/__init__.py", line 2439, in to_python
    params={'value': value},
django.core.exceptions.ValidationError: ['“<LocationQuerySet [<Location: Campus-00>, <Location: Building-01>, <Location: Elevator-02>, <Location: Elevator-09>, <Location: Floor-03>, <Location: Room-04>, <Location: Aisle-05>, <Location: Aisle-12>, <Location: Room-11>, <Location: Aisle-19>, <Location: Campus-07>, <Location: Building-08>, <Location: Floor-10>, <Location: Room-18>, <Location: Campus-14>, <Location: Building-15>, <Location: Elevator-16>, <Location: Floor-17>, <Location: Root-06>, <Location: Root-13>]>” is not a valid UUID.']
>>> c.locations.add([Location.objects.all()])
Traceback (most recent call last):
  File "/usr/local/lib/python3.7/site-packages/django/db/models/fields/__init__.py", line 2434, in to_python
    return uuid.UUID(**{input_form: value})
  File "/usr/local/lib/python3.7/uuid.py", line 157, in __init__
    hex = hex.replace('urn:', '').replace('uuid:', '')
AttributeError: 'list' object has no attribute 'replace'

During handling of the above exception, another exception occurred:

[jathanism]

You have to unpack the list e.g. cc.locations.add(*region_locs)

[glennmatthews]

Similarly?

Suggested change

	original_locs = list(cc.locations.all())
	locations = site_locs + original_locs
	cc.locations.set(site_locs + original_locs)
	cc.locations.add(*site_locs)

[jathanism]

^ I edited your suggestion to unpack the list.

[HanlinMiao]

See #3208 (comment) for more migrations we need to do in this PR