134 lines
5.5 KiB
Python
134 lines
5.5 KiB
Python
# -*- mode: python; coding: utf-8 -*-
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# Copyright (C) 2017-2019 by BDE ENS Paris-Saclay
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# SPDX-License-Identifier: GPL-3.0-or-later
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import json
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import urllib.request
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from django.forms import ModelForm
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from .models import Auteur
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from .scraper import BedetequeScraper
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class MediaAdminForm(ModelForm):
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def __init__(self, *args, **kwargs):
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super().__init__(*args, **kwargs)
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isbn_field = self.fields.get('isbn')
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if isbn_field:
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isbn_field.widget.template_name = "media/isbn_button.html"
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isbn_field.widget.attrs.update({'autofocus': 'autofocus'})
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def download_data_bedeteque(self, isbn):
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"""
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Download data from bedeteque
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:return True if success
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"""
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scraper = BedetequeScraper()
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r = scraper.search_by_isbn(isbn)
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if not r:
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return False
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# If results, then take the most accurate
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data = scraper.scrap_bd_info(r[0])
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self.cleaned_data.update(data)
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print(self.cleaned_data)
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return True
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def download_data_openlibrary(self, isbn):
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"""
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Download data from openlibrary
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:return True if success
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"""
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api_url = "https://openlibrary.org/api/books?bibkeys=ISBN:{}" \
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"&format=json&jscmd=data".format(isbn)
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with urllib.request.urlopen(api_url) as url:
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data = json.loads(url.read().decode())
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if data and data['ISBN:' + isbn]:
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data = data['ISBN:' + isbn]
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if 'url' in data:
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# Fill the data
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self.cleaned_data['external_url'] = data['url']
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if 'title' in data:
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self.cleaned_data['title'] = data['title']
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if 'subtitle' in data:
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self.cleaned_data['subtitle'] = data['subtitle']
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if 'number_of_pages' in data:
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self.cleaned_data['number_of_pages'] = \
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data['number_of_pages']
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elif not self.cleaned_data['number_of_pages']:
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self.cleaned_data['number_of_pages'] = 0
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if 'publish_date' in data:
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months = ['January', 'February', "March", "April", "Mai",
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"June", "July", "August", "September",
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"October", "November","December"]
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split = data['publish_date'].replace(',', '').split(' ')
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self.cleaned_data['publish_date'] = "{}-{:02d}-{:02d}"\
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.format(split[2], months.index(split[0])+1,
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int(split[1]),)
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if 'authors' in data:
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if 'author' not in self.cleaned_data:
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self.cleaned_data['authors'] = list()
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for author in data['authors']:
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author_obj = Auteur.objects.get_or_create(
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name=author['name'])[0]
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self.cleaned_data['authors'].append(author_obj)
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return True
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return False
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def clean(self):
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"""
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If user fetch ISBN data, then download data before validating the form
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"""
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super().clean()
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if "_continue" in self.request.POST:
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isbn = self.cleaned_data.get('isbn')
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if isbn:
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# ISBN is present, try with bedeteque
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scrap_result = self.download_data_bedeteque(isbn)
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if not scrap_result:
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# Try with OpenLibrary
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self.download_data_openlibrary(isbn)
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if self.cleaned_data['authors']:
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author_name = self.cleaned_data['authors'][0].name
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if ',' not in author_name and ' ' in author_name:
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author_name = author_name.split(' ')[1]
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side_identifier = "{:.3} {:.3}".format(
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author_name.upper(),
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self.cleaned_data['title'].upper(), )
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if self.cleaned_data['subtitle']:
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start = self.cleaned_data['subtitle'] \
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.split(' ')[0].replace('.', '')
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if start.isnumeric():
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side_identifier += " {:0>2}".format(start, )
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self.cleaned_data['side_identifier'] = side_identifier
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return self.cleaned_data
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def _clean_fields(self):
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for name, field in self.fields.items():
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# value_from_datadict() gets the data from the data dictionaries.
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# Each widget type knows how to retrieve its own data, because some
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# widgets split data over several HTML fields.
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if field.disabled:
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value = self.get_initial_for_field(field, name)
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else:
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value = field.widget.value_from_datadict(
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self.data, self.files, self.add_prefix(name))
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from django.core.exceptions import ValidationError
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try:
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# We don't want to check a field when we enter an ISBN.
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if "_continue" not in self.request.POST \
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or not self.cleaned_data.get('isbn'):
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value = field.clean(value)
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self.cleaned_data[name] = value
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if hasattr(self, 'clean_%s' % name):
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value = getattr(self, 'clean_%s' % name)()
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self.cleaned_data[name] = value
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except ValidationError as e:
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self.add_error(name, e)
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