apps/catalogue/management/commands/make_master.py

   1 # -*- coding: utf-8 -*-
   2
   3 from django.core.management.base import BaseCommand
   4 from django.core.management.color import color_style
   5 from django.utils.encoding import smart_unicode
   6 from catalogue.management.prompt import confirm
   7 from catalogue.models import Book
   8 from optparse import make_option
   9 from datetime import date
  10 import re
  11 from slughifi import slughifi
  12 from lxml import etree
  13 from librarian import WLURI
  14
  15
  16 dc_fixed = {
  17     'description': u'Publikacja zrealizowana w ramach projektu Cyfrowa Przyszłość (http://edukacjamedialna.edu.pl).',
  18     'rights': u'Creative Commons Uznanie autorstwa - Na tych samych warunkach 3.0',
  19     'rights_license': u'http://creativecommons.org/licenses/by-sa/3.0/',
  20     }
  21
  22 dc_namespaces = { "dc": "http://purl.org/dc/elements/1.1/" }
  23
  24 class Command(BaseCommand):
  25     option_list = BaseCommand.option_list + (
  26         make_option('-s', '--slug', dest='slug', help="Slug for master module (if empty will be generated from title)"),
  27         make_option('-F', '--file', dest='slugs_file', help="file with child module titles per line"),
  28         make_option('-t', '--title', dest='title', default='', help="title of master module"),
  29         make_option('-l', '--level', dest='audience', default='', help='Audience level'),
  30     )
  31     help = 'Create a master module skeleton'
  32
  33     def looks_like_synthetic(self, title):
  34         if re.match(r"^(gim|lic)_\d[.]? ", title):
  35             return True
  36         return False
  37
  38     def adopt(self, child, master, typ_, audience_, commit_args):
  39         fc = child[0]
  40         txt = fc.materialize()
  41         changed = False
  42         try:
  43             t = etree.fromstring(txt)
  44         except etree.XMLSyntaxError, e:
  45             print "cannot read xml in part: %s" % child.slug
  46             print unicode(e)
  47             return
  48         wluri = WLURI(t.xpath("//dc:identifier.url", namespaces=dc_namespaces)[0].text)
  49         typ = t.xpath("//dc:type", namespaces=dc_namespaces)
  50         if not typ:
  51             print "no type in DC, inserting under format"
  52             fmt = t.xpath("//dc:format", namespaces=dc_namespaces)
  53             container = fmt.getparent()
  54             typ = etree.SubElement(container, etree.QName('dc', 'type'))
  55             container.insert(typ, container.index(fmt)+1)
  56             changed = True
  57         else:
  58             typ = typ[0]
  59         if typ.text != typ_:
  60             print "type is '%s', setting to '%s'" % (typ.text, typ_)
  61             changed = True
  62             typ.text = typ_
  63         #audience = t.xpath("//dc:audience", namespaces=dc_namespaces)[0]
  64         #if audience.text != audience_:
  65         #    print "audience is '%s', setting to '%s'" % (audience.text, audience_)
  66         #    changed = True
  67         #    audience.text = audience_
  68         if changed:
  69             print "will commit."
  70             fc.commit(etree.tostring(t, encoding=unicode), **commit_args)
  71         return wluri
  72
  73
  74     def gen_xml(self, options, synthetic_modules=[], course_modules=[], project_modules=[]):
  75         holder = {}
  76         holder['xml'] = u""
  77         slug = options['slug']
  78         if not slug:
  79             slug = slughifi(options['title'])
  80
  81         def p(t):
  82             holder['xml'] += u"%s\n" % t
  83
  84         def dc(k, v):
  85             v = smart_unicode(v)
  86             p(u'<dc:%s xml:lang="pl" xmlns:dc="http://purl.org/dc/elements/1.1/">%s</dc:%s>' % (k, v, k))
  87
  88         def t(tag, ct):
  89             p(u'<%s>%s</%s>' % (tag, ct, tag))
  90
  91         def slug_url(slug):
  92             return u"http://edukacjamedialna/%s/" % slug
  93
  94         p("<utwor>")
  95         p(u'<rdf:RDF xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#">')
  96         p(u'<rdf:Description rdf:about="http://redakcja.edukacjamedialna.edu.pl/documents/">')
  97
  98         dc(u'title', options['title'])
  99         for s in synthetic_modules:
 100             dc(u'relation.hasPart', unicode(s))
 101         for s in course_modules:
 102             dc(u'relation.hasPart', unicode(s))
 103         for s in project_modules:
 104             dc(u'relation.hasPart', unicode(s))
 105         dc(u'publisher', u'Fundacja Nowoczesna Polska')
 106         #        dc(u'subject.competence', meta.get(u'Wybrana kompetencja z Katalogu', u''))
 107         #        dc(u'subject.curriculum', meta.get(u'Odniesienie do podstawy programowej', u''))
 108         ## for keyword in meta.get(u'Słowa kluczowe', u'').split(u','):
 109         ##     keyword = keyword.strip()
 110         ##     dc(u'subject', keyword)
 111         dc(u'description', dc_fixed['description'])
 112         dc(u'identifier.url', u'http://edukacjamedialna.edu.pl/%s' % slug)
 113         dc(u'rights', dc_fixed['rights'])
 114         dc(u'rights.license', dc_fixed['rights_license'])
 115         dc(u'format', u'xml')
 116         dc(u'type', u'section')
 117         dc(u'date', date.strftime(date.today(), "%Y-%m-%d"))
 118         dc(u'language', u'pol')
 119         p(u'</rdf:Description>')
 120         p(u'</rdf:RDF>')
 121         p(u'</utwor>')
 122
 123         return holder['xml']
 124
 125     def handle(self, *args, **options):
 126         commit_args = {
 127             "author_name": 'Platforma',
 128             "description": 'Automatycznie zaimportowane z EtherPad',
 129             "publishable": False,
 130         }
 131
 132         slug = options['slug']
 133         if not slug:
 134             slug = slughifi(options['title'])
 135         existing = Book.objects.filter(slug=slug)
 136
 137         master = None
 138         if existing:
 139             overwrite = confirm("%s exists. Overwrite?" % slug, True)
 140             if not overwrite:
 141                 return
 142             master = existing[0]
 143         else:
 144             master = Book()
 145         master.slug = slug
 146         master.title = options['title']
 147         master.save()
 148
 149         if len(master) == 0:
 150             master.add(slug, options['title'])
 151
 152         synthetic_modules = []
 153         course_modules = []
 154         if 'slugs_file' in options:
 155             f = open(options['slugs_file'], 'r')
 156             try:
 157                 titles = [l.strip() for l in f.readlines()]
 158
 159                 for t in titles:
 160                     if not t: continue
 161                     try:
 162                         b = Book.objects.get(title=t)
 163                     except Book.DoesNotExist:
 164                         print "Book for title %s does not exist" % t
 165                         continue
 166                     if self.looks_like_synthetic(t):
 167                         wlurl = self.adopt(b, master, 'synthetic', options['audience'], commit_args)
 168                         synthetic_modules.append(wlurl)
 169                     else:
 170                         wlurl = self.adopt(b, master, 'course', options['audience'], commit_args)
 171                         course_modules.append(wlurl)
 172             except Exception, e:
 173                 print "Error getting slug list (file %s): %s" % (options['slugs_file'], e)
 174
 175         print "synthetic: %s" % [unicode(z) for z in synthetic_modules]
 176         print "course: %s" % [unicode(z) for z in course_modules]
 177
 178         xml = self.gen_xml(options, synthetic_modules, course_modules)
 179         c = master[0]
 180         print xml
 181         if confirm("Commit?", True):
 182             c.commit(xml, **commit_args)
 183