prompt: You will be provided with a partial code base and an issue statement explaining a problem to resolve.
  <issue>
  Allow patching indicator with empty list of dimension names
  
  
  </issue>
  <code>
  [start of akvo/rest/serializers/indicator.py]
  1 # -*- coding: utf-8 -*-
  2 
  3 # Akvo RSR is covered by the GNU Affero General Public License.
  4 # See more details in the license.txt file located at the root folder of the Akvo RSR module.
  5 # For additional details on the GNU license please see < http://www.gnu.org/licenses/agpl.html >.
  6 
  7 from akvo.rest.serializers.indicator_period import IndicatorPeriodFrameworkSerializer
  8 from akvo.rest.serializers.indicator_dimension_name import IndicatorDimensionNameSerializer
  9 from akvo.rest.serializers.rsr_serializer import BaseRSRSerializer
  10 from akvo.rsr.models import Indicator
  11 
  12 from rest_framework import serializers
  13 
  14 
  15 class IndicatorSerializer(BaseRSRSerializer):
  16 
  17     result_unicode = serializers.ReadOnlyField(source='result.__unicode__')
  18     measure_label = serializers.ReadOnlyField(source='iati_measure_unicode')
  19     children_aggregate_percentage = serializers.ReadOnlyField()
  20 
  21     class Meta:
  22         model = Indicator
  23         fields = '__all__'
  24 
  25     # TODO: add validation for parent_indicator
  26 
  27 
  28 class IndicatorFrameworkSerializer(BaseRSRSerializer):
  29 
  30     periods = IndicatorPeriodFrameworkSerializer(many=True, required=False, read_only=True)
  31     parent_indicator = serializers.ReadOnlyField(source='parent_indicator_id')
  32     children_aggregate_percentage = serializers.ReadOnlyField()
  33     dimension_names = IndicatorDimensionNameSerializer(many=True, required=False, read_only=True)
  34 
  35     class Meta:
  36         model = Indicator
  37         fields = '__all__'
  38
  [end of akvo/rest/serializers/indicator.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/akvo/rest/serializers/indicator.py b/akvo/rest/serializers/indicator.py
  --- a/akvo/rest/serializers/indicator.py
  +++ b/akvo/rest/serializers/indicator.py
  @@ -7,7 +7,7 @@
   from akvo.rest.serializers.indicator_period import IndicatorPeriodFrameworkSerializer
   from akvo.rest.serializers.indicator_dimension_name import IndicatorDimensionNameSerializer
   from akvo.rest.serializers.rsr_serializer import BaseRSRSerializer
  -from akvo.rsr.models import Indicator
  +from akvo.rsr.models import Indicator, IndicatorDimensionName
   
   from rest_framework import serializers
   
  @@ -17,6 +17,8 @@
       result_unicode = serializers.ReadOnlyField(source='result.__unicode__')
       measure_label = serializers.ReadOnlyField(source='iati_measure_unicode')
       children_aggregate_percentage = serializers.ReadOnlyField()
  +    dimension_names = serializers.PrimaryKeyRelatedField(
  +        many=True, queryset=IndicatorDimensionName.objects.all())
   
       class Meta:
           model = Indicator
  
verification_info: {"golden_diff": "diff --git a/akvo/rest/serializers/indicator.py b/akvo/rest/serializers/indicator.py\n--- a/akvo/rest/serializers/indicator.py\n+++ b/akvo/rest/serializers/indicator.py\n@@ -7,7 +7,7 @@\n from akvo.rest.serializers.indicator_period import IndicatorPeriodFrameworkSerializer\n from akvo.rest.serializers.indicator_dimension_name import IndicatorDimensionNameSerializer\n from akvo.rest.serializers.rsr_serializer import BaseRSRSerializer\n-from akvo.rsr.models import Indicator\n+from akvo.rsr.models import Indicator, IndicatorDimensionName\n \n from rest_framework import serializers\n \n@@ -17,6 +17,8 @@\n     result_unicode = serializers.ReadOnlyField(source='result.__unicode__')\n     measure_label = serializers.ReadOnlyField(source='iati_measure_unicode')\n     children_aggregate_percentage = serializers.ReadOnlyField()\n+    dimension_names = serializers.PrimaryKeyRelatedField(\n+        many=True, queryset=IndicatorDimensionName.objects.all())\n \n     class Meta:\n         model = Indicator\n", "issue": "Allow patching indicator with empty list of dimension names\n\n", "before_files": [{"content": "# -*- coding: utf-8 -*-\n\n# Akvo RSR is covered by the GNU Affero General Public License.\n# See more details in the license.txt file located at the root folder of the Akvo RSR module.\n# For additional details on the GNU license please see < http://www.gnu.org/licenses/agpl.html >.\n\nfrom akvo.rest.serializers.indicator_period import IndicatorPeriodFrameworkSerializer\nfrom akvo.rest.serializers.indicator_dimension_name import IndicatorDimensionNameSerializer\nfrom akvo.rest.serializers.rsr_serializer import BaseRSRSerializer\nfrom akvo.rsr.models import Indicator\n\nfrom rest_framework import serializers\n\n\nclass IndicatorSerializer(BaseRSRSerializer):\n\n    result_unicode = serializers.ReadOnlyField(source='result.__unicode__')\n    measure_label = serializers.ReadOnlyField(source='iati_measure_unicode')\n    children_aggregate_percentage = serializers.ReadOnlyField()\n\n    class Meta:\n        model = Indicator\n        fields = '__all__'\n\n    # TODO: add validation for parent_indicator\n\n\nclass IndicatorFrameworkSerializer(BaseRSRSerializer):\n\n    periods = IndicatorPeriodFrameworkSerializer(many=True, required=False, read_only=True)\n    parent_indicator = serializers.ReadOnlyField(source='parent_indicator_id')\n    children_aggregate_percentage = serializers.ReadOnlyField()\n    dimension_names = IndicatorDimensionNameSerializer(many=True, required=False, read_only=True)\n\n    class Meta:\n        model = Indicator\n        fields = '__all__'\n", "path": "akvo/rest/serializers/indicator.py"}]}