Misago/misago/threads/serializers/post.py

from django.core.urlresolvers import reverse

from rest_framework import serializers

from misago.users.serializers import UserSerializer

from ..models import Post


__all__ = [
    'PostSerializer',
]


class PostSerializer(serializers.ModelSerializer):
    poster = UserSerializer(many=False, read_only=True)
    poster_ip = serializers.SerializerMethodField()
    parsed = serializers.SerializerMethodField()
    attachments_cache = serializers.SerializerMethodField()
    last_editor = serializers.PrimaryKeyRelatedField(read_only=True)
    hidden_by = serializers.PrimaryKeyRelatedField(read_only=True)

    acl = serializers.SerializerMethodField()
    is_read = serializers.SerializerMethodField()
    is_new = serializers.SerializerMethodField()

    api = serializers.SerializerMethodField()
    url = serializers.SerializerMethodField()

    class Meta:
        model = Post
        fields = (
            'id',
            'poster',
            'poster_name',
            'poster_ip',
            'parsed',
            'has_attachments',
            'attachments_cache',
            'posted_on',
            'updated_on',
            'hidden_on',
            'edits',
            'last_editor',
            'last_editor_name',
            'last_editor_slug',
            'hidden_by',
            'hidden_by_name',
            'hidden_by_slug',
            'is_unapproved',
            'is_hidden',
            'is_protected',
            'is_event',
            'event_type',
            'event_context',

            'acl',
            'is_new',
            'is_read',

            'api',
            'url',
        )

    def get_poster_ip(self, obj):
        if self.context['user'].acl['can_see_users_ips']:
            return obj.poster_ip
        else:
            return None

    def get_parsed(self, obj):
        if obj.is_valid and not obj.is_event and (not obj.is_hidden or obj.acl['can_see_hidden']):
            return obj.parsed
        else:
            return None

    def get_attachments_cache(self, obj):
        # TODO: check if user can download attachments before we'll expose them here
        return None

    def get_acl(self, obj):
        try:
            return obj.acl
        except AttributeError:
            return None

    def get_is_new(self, obj):
        try:
            return obj.is_new
        except AttributeError:
            return None

    def get_is_read(self, obj):
        try:
            return obj.is_read
        except AttributeError:
            return None

    def get_api(self, obj):
        return {
            'index': obj.get_api_url(),
            'editor': obj.get_editor_api_url(),
            'read': obj.get_read_api_url(),
        }

    def get_url(self, obj):
        return {
            'index': obj.get_absolute_url(),
            'last_editor': self.get_last_editor_url(obj),
            'hidden_by': self.get_hidden_by_url(obj),
        }

    def get_last_editor_url(self, obj):
        if obj.last_editor_id:
            return reverse('misago:user', kwargs={
                'pk': obj.last_editor_id,
                'slug': obj.last_editor_slug
            })
        else:
            return None

    def get_hidden_by_url(self, obj):
        if obj.hidden_by_id:
            return reverse('misago:user', kwargs={
                'pk': obj.hidden_by_id,
                'slug': obj.hidden_by_slug
            })
        else:
            return None