prompt: You will be provided with a partial code base and an issue statement explaining a problem to resolve.
  <issue>
  Implement 'Shares'
  ## Issues
  - [x] https://github.com/centerofci/mathesar/issues/3033
  - [x] https://github.com/centerofci/mathesar/issues/3034
  - [x] https://github.com/centerofci/mathesar/issues/3035
  - [x] https://github.com/centerofci/mathesar/issues/3036
  
  ## Tasks:
  - [ ] Add regenerate slug endpoints
  
  ### https://github.com/centerofci/mathesar/pull/3093#pullrequestreview-1546069582
  - [ ] Address the following in shared table consumer page
     - [ ] Disable re-reordering of columns
     - [ ] Don't show the icon hyperlink to the record page within the PK cell
     - [ ] Remove the following entries in the cell context menu:
         - "Set to NULL"
         - "Go to Record Page"
         - "Go to Linked Record" (shown only for FK columns)
     - [ ] Remove the "Go to Record Page" entry from the row header context menu
     - [ ] Disable record selector in filtering for FK columns
  - [ ] Come up with a better term for 'ShareConsumer'. Some suggestions:
      - ShareAccessInfo
      - SharedLink
      - ConsumableShare
  
  ## Related:
  * [Product spec](https://wiki.mathesar.org/en/product/specs/publicly-shareable-links)
  
  </issue>
  <code>
  [start of mathesar/api/ui/viewsets/shares.py]
  1 from rest_framework import viewsets
  2 from rest_access_policy import AccessViewSetMixin
  3 
  4 from mathesar.api.pagination import DefaultLimitOffsetPagination
  5 from mathesar.api.ui.serializers.shares import SharedTableSerializer, SharedQuerySerializer
  6 from mathesar.api.ui.permissions.shares import SharedTableAccessPolicy, SharedQueryAccessPolicy
  7 from mathesar.models.shares import SharedTable, SharedQuery
  8 
  9 
  10 class SharedTableViewSet(AccessViewSetMixin, viewsets.ModelViewSet):
  11     pagination_class = DefaultLimitOffsetPagination
  12     serializer_class = SharedTableSerializer
  13     access_policy = SharedTableAccessPolicy
  14 
  15     def get_queryset(self):
  16         return SharedTable.objects.filter(table_id=self.kwargs['table_pk']).order_by('-created_at')
  17 
  18     def perform_create(self, serializer):
  19         serializer.save(table_id=self.kwargs['table_pk'])
  20 
  21 
  22 class SharedQueryViewSet(AccessViewSetMixin, viewsets.ModelViewSet):
  23     pagination_class = DefaultLimitOffsetPagination
  24     serializer_class = SharedQuerySerializer
  25     access_policy = SharedQueryAccessPolicy
  26 
  27     def get_queryset(self):
  28         return SharedQuery.objects.filter(query_id=self.kwargs['query_pk']).order_by('-created_at')
  29 
  30     def perform_create(self, serializer):
  31         serializer.save(query_id=self.kwargs['query_pk'])
  32
  [end of mathesar/api/ui/viewsets/shares.py]
  [start of mathesar/api/ui/permissions/shares.py]
  1 from rest_access_policy import AccessPolicy
  2 
  3 from mathesar.api.utils import get_query_or_404
  4 from mathesar.api.permission_utils import QueryAccessInspector
  5 
  6 
  7 class SharedTableAccessPolicy(AccessPolicy):
  8     statements = [
  9         {
  10             'action': ['list', 'retrieve'],
  11             'principal': 'authenticated',
  12             'effect': 'allow',
  13             'condition_expression': 'is_atleast_viewer_nested_table_resource'
  14         },
  15         {
  16             'action': ['create', 'destroy', 'update', 'partial_update'],
  17             'principal': 'authenticated',
  18             'effect': 'allow',
  19             'condition_expression': 'is_atleast_editor_nested_table_resource'
  20         },
  21     ]
  22 
  23 
  24 class SharedQueryAccessPolicy(AccessPolicy):
  25     statements = [
  26         {
  27             'action': ['list', 'retrieve'],
  28             'principal': 'authenticated',
  29             'effect': 'allow',
  30             'condition_expression': 'is_atleast_query_viewer'
  31         },
  32         {
  33             'action': ['create', 'destroy', 'update', 'partial_update'],
  34             'principal': 'authenticated',
  35             'effect': 'allow',
  36             'condition_expression': 'is_atleast_query_editor'
  37         },
  38     ]
  39 
  40     def is_atleast_query_viewer(self, request, view, action):
  41         query = get_query_or_404(view.kwargs['query_pk'])
  42         return QueryAccessInspector(request.user, query).is_atleast_viewer()
  43 
  44     def is_atleast_query_editor(self, request, view, action):
  45         query = get_query_or_404(view.kwargs['query_pk'])
  46         return QueryAccessInspector(request.user, query).is_atleast_editor()
  47
  [end of mathesar/api/ui/permissions/shares.py]
  </code>
  
  I need you to solve this issue by generating a single patch file that I can apply directly to this repository using git apply. Please respond with a single patch file in the following format.
  <patch>
  diff --git a/file.py b/file.py
  --- a/file.py
  +++ b/file.py
  @@ -1,27 +1,35 @@
   def euclidean(a, b):
  -    while b:
  -        a, b = b, a % b
  -    return a
  +    if b == 0:
  +        return a
  +    return euclidean(b, a % b)
   
   
   def bresenham(x0, y0, x1, y1):
       points = []
       dx = abs(x1 - x0)
       dy = abs(y1 - y0)
  -    sx = 1 if x0 < x1 else -1
  -    sy = 1 if y0 < y1 else -1
  -    err = dx - dy
  +    x, y = x0, y0
  +    sx = -1 if x0 > x1 else 1
  +    sy = -1 if y0 > y1 else 1
   
  -    while True:
  -        points.append((x0, y0))
  -        if x0 == x1 and y0 == y1:
  -            break
  -        e2 = 2 * err
  -        if e2 > -dy:
  -            err -= dy
  -            x0 += sx
  -        if e2 < dx:
  -            err += dx
  -            y0 += sy
  +    if dx > dy:
  +        err = dx / 2.0
  +        while x != x1:
  +            points.append((x, y))
  +            err -= dy
  +            if err < 0:
  +                y += sy
  +                err += dx
  +            x += sx
  +    else:
  +        err = dy / 2.0
  +        while y != y1:
  +            points.append((x, y))
  +            err -= dx
  +            if err < 0:
  +                x += sx
  +                err += dy
  +            y += sy
  +
  +    points.append((x, y))
       return points
  
  </patch>
golden_diff: diff --git a/mathesar/api/ui/permissions/shares.py b/mathesar/api/ui/permissions/shares.py
  --- a/mathesar/api/ui/permissions/shares.py
  +++ b/mathesar/api/ui/permissions/shares.py
  @@ -13,7 +13,7 @@
               'condition_expression': 'is_atleast_viewer_nested_table_resource'
           },
           {
  -            'action': ['create', 'destroy', 'update', 'partial_update'],
  +            'action': ['create', 'destroy', 'update', 'partial_update', 'regenerate'],
               'principal': 'authenticated',
               'effect': 'allow',
               'condition_expression': 'is_atleast_editor_nested_table_resource'
  @@ -30,7 +30,7 @@
               'condition_expression': 'is_atleast_query_viewer'
           },
           {
  -            'action': ['create', 'destroy', 'update', 'partial_update'],
  +            'action': ['create', 'destroy', 'update', 'partial_update', 'regenerate'],
               'principal': 'authenticated',
               'effect': 'allow',
               'condition_expression': 'is_atleast_query_editor'
  diff --git a/mathesar/api/ui/viewsets/shares.py b/mathesar/api/ui/viewsets/shares.py
  --- a/mathesar/api/ui/viewsets/shares.py
  +++ b/mathesar/api/ui/viewsets/shares.py
  @@ -1,5 +1,8 @@
  +import uuid
   from rest_framework import viewsets
   from rest_access_policy import AccessViewSetMixin
  +from rest_framework.decorators import action
  +from rest_framework.response import Response
   
   from mathesar.api.pagination import DefaultLimitOffsetPagination
   from mathesar.api.ui.serializers.shares import SharedTableSerializer, SharedQuerySerializer
  @@ -7,7 +10,17 @@
   from mathesar.models.shares import SharedTable, SharedQuery
   
   
  -class SharedTableViewSet(AccessViewSetMixin, viewsets.ModelViewSet):
  +class RegenerateSlugMixin(viewsets.GenericViewSet):
  +    @action(methods=['post'], detail=True)
  +    def regenerate(self, *args, **kwargs):
  +        share = self.get_object()
  +        share.slug = uuid.uuid4()
  +        share.save()
  +        serializer = self.get_serializer(share)
  +        return Response(serializer.data)
  +
  +
  +class SharedTableViewSet(AccessViewSetMixin, viewsets.ModelViewSet, RegenerateSlugMixin):
       pagination_class = DefaultLimitOffsetPagination
       serializer_class = SharedTableSerializer
       access_policy = SharedTableAccessPolicy
  @@ -19,7 +32,7 @@
           serializer.save(table_id=self.kwargs['table_pk'])
   
   
  -class SharedQueryViewSet(AccessViewSetMixin, viewsets.ModelViewSet):
  +class SharedQueryViewSet(AccessViewSetMixin, viewsets.ModelViewSet, RegenerateSlugMixin):
       pagination_class = DefaultLimitOffsetPagination
       serializer_class = SharedQuerySerializer
       access_policy = SharedQueryAccessPolicy
  
verification_info: {"golden_diff": "diff --git a/mathesar/api/ui/permissions/shares.py b/mathesar/api/ui/permissions/shares.py\n--- a/mathesar/api/ui/permissions/shares.py\n+++ b/mathesar/api/ui/permissions/shares.py\n@@ -13,7 +13,7 @@\n             'condition_expression': 'is_atleast_viewer_nested_table_resource'\n         },\n         {\n-            'action': ['create', 'destroy', 'update', 'partial_update'],\n+            'action': ['create', 'destroy', 'update', 'partial_update', 'regenerate'],\n             'principal': 'authenticated',\n             'effect': 'allow',\n             'condition_expression': 'is_atleast_editor_nested_table_resource'\n@@ -30,7 +30,7 @@\n             'condition_expression': 'is_atleast_query_viewer'\n         },\n         {\n-            'action': ['create', 'destroy', 'update', 'partial_update'],\n+            'action': ['create', 'destroy', 'update', 'partial_update', 'regenerate'],\n             'principal': 'authenticated',\n             'effect': 'allow',\n             'condition_expression': 'is_atleast_query_editor'\ndiff --git a/mathesar/api/ui/viewsets/shares.py b/mathesar/api/ui/viewsets/shares.py\n--- a/mathesar/api/ui/viewsets/shares.py\n+++ b/mathesar/api/ui/viewsets/shares.py\n@@ -1,5 +1,8 @@\n+import uuid\n from rest_framework import viewsets\n from rest_access_policy import AccessViewSetMixin\n+from rest_framework.decorators import action\n+from rest_framework.response import Response\n \n from mathesar.api.pagination import DefaultLimitOffsetPagination\n from mathesar.api.ui.serializers.shares import SharedTableSerializer, SharedQuerySerializer\n@@ -7,7 +10,17 @@\n from mathesar.models.shares import SharedTable, SharedQuery\n \n \n-class SharedTableViewSet(AccessViewSetMixin, viewsets.ModelViewSet):\n+class RegenerateSlugMixin(viewsets.GenericViewSet):\n+    @action(methods=['post'], detail=True)\n+    def regenerate(self, *args, **kwargs):\n+        share = self.get_object()\n+        share.slug = uuid.uuid4()\n+        share.save()\n+        serializer = self.get_serializer(share)\n+        return Response(serializer.data)\n+\n+\n+class SharedTableViewSet(AccessViewSetMixin, viewsets.ModelViewSet, RegenerateSlugMixin):\n     pagination_class = DefaultLimitOffsetPagination\n     serializer_class = SharedTableSerializer\n     access_policy = SharedTableAccessPolicy\n@@ -19,7 +32,7 @@\n         serializer.save(table_id=self.kwargs['table_pk'])\n \n \n-class SharedQueryViewSet(AccessViewSetMixin, viewsets.ModelViewSet):\n+class SharedQueryViewSet(AccessViewSetMixin, viewsets.ModelViewSet, RegenerateSlugMixin):\n     pagination_class = DefaultLimitOffsetPagination\n     serializer_class = SharedQuerySerializer\n     access_policy = SharedQueryAccessPolicy\n", "issue": "Implement 'Shares'\n## Issues\r\n- [x] https://github.com/centerofci/mathesar/issues/3033\r\n- [x] https://github.com/centerofci/mathesar/issues/3034\r\n- [x] https://github.com/centerofci/mathesar/issues/3035\r\n- [x] https://github.com/centerofci/mathesar/issues/3036\r\n\r\n## Tasks:\r\n- [ ] Add regenerate slug endpoints\r\n\r\n### https://github.com/centerofci/mathesar/pull/3093#pullrequestreview-1546069582\r\n- [ ] Address the following in shared table consumer page\r\n   - [ ] Disable re-reordering of columns\r\n   - [ ] Don't show the icon hyperlink to the record page within the PK cell\r\n   - [ ] Remove the following entries in the cell context menu:\r\n       - \"Set to NULL\"\r\n       - \"Go to Record Page\"\r\n       - \"Go to Linked Record\" (shown only for FK columns)\r\n   - [ ] Remove the \"Go to Record Page\" entry from the row header context menu\r\n   - [ ] Disable record selector in filtering for FK columns\r\n- [ ] Come up with a better term for 'ShareConsumer'. Some suggestions:\r\n    - ShareAccessInfo\r\n    - SharedLink\r\n    - ConsumableShare\r\n\r\n## Related:\r\n* [Product spec](https://wiki.mathesar.org/en/product/specs/publicly-shareable-links)\n", "before_files": [{"content": "from rest_framework import viewsets\nfrom rest_access_policy import AccessViewSetMixin\n\nfrom mathesar.api.pagination import DefaultLimitOffsetPagination\nfrom mathesar.api.ui.serializers.shares import SharedTableSerializer, SharedQuerySerializer\nfrom mathesar.api.ui.permissions.shares import SharedTableAccessPolicy, SharedQueryAccessPolicy\nfrom mathesar.models.shares import SharedTable, SharedQuery\n\n\nclass SharedTableViewSet(AccessViewSetMixin, viewsets.ModelViewSet):\n    pagination_class = DefaultLimitOffsetPagination\n    serializer_class = SharedTableSerializer\n    access_policy = SharedTableAccessPolicy\n\n    def get_queryset(self):\n        return SharedTable.objects.filter(table_id=self.kwargs['table_pk']).order_by('-created_at')\n\n    def perform_create(self, serializer):\n        serializer.save(table_id=self.kwargs['table_pk'])\n\n\nclass SharedQueryViewSet(AccessViewSetMixin, viewsets.ModelViewSet):\n    pagination_class = DefaultLimitOffsetPagination\n    serializer_class = SharedQuerySerializer\n    access_policy = SharedQueryAccessPolicy\n\n    def get_queryset(self):\n        return SharedQuery.objects.filter(query_id=self.kwargs['query_pk']).order_by('-created_at')\n\n    def perform_create(self, serializer):\n        serializer.save(query_id=self.kwargs['query_pk'])\n", "path": "mathesar/api/ui/viewsets/shares.py"}, {"content": "from rest_access_policy import AccessPolicy\n\nfrom mathesar.api.utils import get_query_or_404\nfrom mathesar.api.permission_utils import QueryAccessInspector\n\n\nclass SharedTableAccessPolicy(AccessPolicy):\n    statements = [\n        {\n            'action': ['list', 'retrieve'],\n            'principal': 'authenticated',\n            'effect': 'allow',\n            'condition_expression': 'is_atleast_viewer_nested_table_resource'\n        },\n        {\n            'action': ['create', 'destroy', 'update', 'partial_update'],\n            'principal': 'authenticated',\n            'effect': 'allow',\n            'condition_expression': 'is_atleast_editor_nested_table_resource'\n        },\n    ]\n\n\nclass SharedQueryAccessPolicy(AccessPolicy):\n    statements = [\n        {\n            'action': ['list', 'retrieve'],\n            'principal': 'authenticated',\n            'effect': 'allow',\n            'condition_expression': 'is_atleast_query_viewer'\n        },\n        {\n            'action': ['create', 'destroy', 'update', 'partial_update'],\n            'principal': 'authenticated',\n            'effect': 'allow',\n            'condition_expression': 'is_atleast_query_editor'\n        },\n    ]\n\n    def is_atleast_query_viewer(self, request, view, action):\n        query = get_query_or_404(view.kwargs['query_pk'])\n        return QueryAccessInspector(request.user, query).is_atleast_viewer()\n\n    def is_atleast_query_editor(self, request, view, action):\n        query = get_query_or_404(view.kwargs['query_pk'])\n        return QueryAccessInspector(request.user, query).is_atleast_editor()\n", "path": "mathesar/api/ui/permissions/shares.py"}]}