9f12763f8b
Server: - ListOfSpeakers (LOS) is now a speprate model, containing of an id, speakers, closed and a content_object. - Moved all speaker related views from ItemViewSet to the new ListOfSpeakersViewSet. - Make Mixins for content objects of items and lists of speakers. - Migrations: Move the lists of speakers from items to the LOS model. Client: - Removed the speaker repo and moved functionality to the new ListOfSpeakersRepositoryService. - Splitted base classes for agenda item content objects to items and LOS. - CurrentAgendaItemService -> CurrentListOfSpeakersSerivce - Cleaned up the list of speakers component.
73 lines
2.3 KiB
Python
73 lines
2.3 KiB
Python
import mimetypes
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from django.conf import settings
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from django.db import models as dbmodels
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from PyPDF2 import PdfFileReader
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from PyPDF2.utils import PdfReadError
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from ..utils.rest_api import FileField, ModelSerializer, SerializerMethodField
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from .models import Mediafile
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class AngularCompatibleFileField(FileField):
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def to_internal_value(self, data):
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if data == "":
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return None
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return super(AngularCompatibleFileField, self).to_internal_value(data)
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def to_representation(self, value):
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if value is None:
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return None
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filetype = mimetypes.guess_type(value.path)[0]
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result = {"name": value.name, "type": filetype}
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if filetype == "application/pdf":
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try:
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result["pages"] = PdfFileReader(open(value.path, "rb")).getNumPages()
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except FileNotFoundError:
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# File was deleted from server. Set 'pages' to 0.
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result["pages"] = 0
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except PdfReadError:
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# File could be encrypted but not be detected by PyPDF.
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result["pages"] = 0
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result["encrypted"] = True
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return result
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class MediafileSerializer(ModelSerializer):
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"""
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Serializer for mediafile.models.Mediafile objects.
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"""
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media_url_prefix = SerializerMethodField()
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filesize = SerializerMethodField()
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def __init__(self, *args, **kwargs):
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"""
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This constructor overwrites the FileField field serializer to return the file meta data in a way that the
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angualarjs upload module likes
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"""
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super(MediafileSerializer, self).__init__(*args, **kwargs)
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self.serializer_field_mapping[dbmodels.FileField] = AngularCompatibleFileField
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if self.instance is not None:
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self.fields["mediafile"].read_only = True
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class Meta:
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model = Mediafile
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fields = (
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"id",
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"title",
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"mediafile",
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"media_url_prefix",
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"uploader",
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"filesize",
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"hidden",
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"timestamp",
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"list_of_speakers_id",
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)
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def get_filesize(self, mediafile):
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return mediafile.get_filesize()
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def get_media_url_prefix(self, mediafile):
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return settings.MEDIA_URL
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