109 lines
4.7 KiB
Python
109 lines
4.7 KiB
Python
from decimal import Decimal
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from django.contrib.auth import get_user_model
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from rest_framework import serializers
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from rest_framework.compat import MaxLengthValidator, MinValueValidator
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from snippets.models import LANGUAGE_CHOICES, STYLE_CHOICES, Snippet, SnippetViewer
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class LanguageSerializer(serializers.Serializer):
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name = serializers.ChoiceField(
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choices=LANGUAGE_CHOICES, default='python', help_text='The name of the programming language')
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read_only_nullable = serializers.CharField(read_only=True, allow_null=True)
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class Meta:
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ref_name = None
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class ExampleProjectSerializer(serializers.Serializer):
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project_name = serializers.CharField(label='project name custom title', help_text='Name of the project')
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github_repo = serializers.CharField(required=True, help_text='Github repository of the project')
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class Meta:
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ref_name = 'Project'
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class UnixTimestampField(serializers.DateTimeField):
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def to_representation(self, value):
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""" Return epoch time for a datetime object or ``None``"""
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from django.utils.dateformat import format
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try:
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return int(format(value, 'U'))
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except (AttributeError, TypeError):
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return None
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def to_internal_value(self, value):
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import datetime
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return datetime.datetime.fromtimestamp(int(value))
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class Meta:
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swagger_schema_fields = {
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'format': 'integer',
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'title': 'Client date time suu',
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'description': 'Date time in unix timestamp format',
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}
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class SnippetSerializer(serializers.Serializer):
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"""SnippetSerializer classdoc
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create: docstring for create from serializer classdoc
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"""
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id = serializers.IntegerField(read_only=True, help_text="id serializer help text")
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created = UnixTimestampField(read_only=True)
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owner = serializers.PrimaryKeyRelatedField(
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queryset=get_user_model().objects.all(),
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default=serializers.CurrentUserDefault(),
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help_text="The ID of the user that created this snippet; if none is provided, "
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"defaults to the currently logged in user."
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)
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owner_as_string = serializers.PrimaryKeyRelatedField(
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help_text="The ID of the user that created this snippet.",
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pk_field=serializers.CharField(help_text="this help text should not show up"),
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read_only=True,
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source='owner',
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)
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title = serializers.CharField(required=False, allow_blank=True, max_length=100)
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code = serializers.CharField(style={'base_template': 'textarea.html'})
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tags = serializers.ListField(child=serializers.CharField(min_length=2), min_length=3, max_length=15)
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linenos = serializers.BooleanField(required=False)
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language = LanguageSerializer(help_text="Sample help text for language")
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styles = serializers.MultipleChoiceField(choices=STYLE_CHOICES, default=['solarized-dark'])
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lines = serializers.ListField(child=serializers.IntegerField(), allow_empty=True, allow_null=True, required=False)
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example_projects = serializers.ListSerializer(child=ExampleProjectSerializer(), read_only=True,
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validators=[MaxLengthValidator(100)])
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difficulty_factor = serializers.FloatField(help_text="this is here just to test FloatField",
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read_only=True, default=lambda: 6.9)
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rate_as_string = serializers.DecimalField(max_digits=6, decimal_places=3, default=Decimal('0.0'),
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validators=[MinValueValidator(Decimal('0.0'))])
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rate = serializers.DecimalField(max_digits=6, decimal_places=3, default=Decimal('0.0'), coerce_to_string=False,
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validators=[MinValueValidator(Decimal('0.0'))])
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def create(self, validated_data):
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"""
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Create and return a new `Snippet` instance, given the validated data.
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"""
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del validated_data['styles']
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del validated_data['lines']
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del validated_data['difficulty_factor']
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return Snippet.objects.create(**validated_data)
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def update(self, instance, validated_data):
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"""
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Update and return an existing `Snippet` instance, given the validated data.
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"""
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instance.title = validated_data.get('title', instance.title)
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instance.code = validated_data.get('code', instance.code)
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instance.linenos = validated_data.get('linenos', instance.linenos)
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instance.language = validated_data.get('language', instance.language)
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instance.style = validated_data.get('style', instance.style)
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instance.save()
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return instance
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class SnippetViewerSerializer(serializers.ModelSerializer):
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class Meta:
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model = SnippetViewer
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fields = '__all__'
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