Andros Fenollosa
1dc333eae6
- New app/api with DRF: POST /api/v1/expenses/, GET categories and subcategories - Token auth via API_TOKEN env var (Bearer header) - Response format: type, data, errors, _links (HATEOAS) - Validates subcategory belongs to category - 11 tests covering auth, CRUD, and validation - API documentation in README.md
42 lines
1.1 KiB
Python
42 lines
1.1 KiB
Python
from rest_framework import serializers
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from app.expenses.models import Category, Expense, Subcategory
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class SubcategorySerializer(serializers.ModelSerializer):
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class Meta:
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model = Subcategory
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fields = ["id", "name", "order"]
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class CategorySerializer(serializers.ModelSerializer):
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subcategories = SubcategorySerializer(many=True, read_only=True)
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class Meta:
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model = Category
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fields = ["id", "name", "order", "subcategories"]
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class ExpenseReadSerializer(serializers.ModelSerializer):
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category = serializers.StringRelatedField()
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subcategory = serializers.StringRelatedField()
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class Meta:
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model = Expense
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fields = ["id", "concept", "amount", "category", "subcategory", "created_at"]
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class ExpenseWriteSerializer(serializers.ModelSerializer):
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class Meta:
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model = Expense
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fields = ["concept", "amount", "category", "subcategory"]
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def validate(self, data):
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category = data.get("category")
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subcategory = data.get("subcategory")
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if subcategory and subcategory.category != category:
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raise serializers.ValidationError(
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{"subcategory": "Subcategory does not belong to the selected category."}
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)
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return data
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