def build_metadata(self, item, site):
if isinstance(item, SearchResult):
search_result = item
item = search_result.object
else:
search_result = None
title = item.title
description = item.abstract
if item.published_on:
date = item.published_on
content_type = []
if search_result:
creator = search_result.authors
if search_result.general_subjects:
subject = [get_name_from_id(GeneralSubject, int(id)) for id in search_result.general_subjects]
if search_result.media_formats:
for id in search_result.media_formats:
id = int(id)
slug = get_slug_from_id(MediaFormat, id)
if slug in MEDIA_FORMAT_TO_DC_TYPE_MAPPING:
content_type.append(MEDIA_FORMAT_TO_DC_TYPE_MAPPING[slug])
if search_result.languages:
language = [get_slug_from_id(Language, int(id)) for id in search_result.languages]
if search_result.geographic_relevance:
coverage = [get_name_from_id(GeographicRelevance, int(id)) for id in search_result.geographic_relevance]
else:
creator = item.authors.all().values_list("name", flat=True)
subject = item.general_subjects.all().values_list("name", flat=True)
if isinstance(item, (Course, Library)):
for slug in item.media_formats.all().values_list("slug", flat=True):
if slug in MEDIA_FORMAT_TO_DC_TYPE_MAPPING:
content_type.append(MEDIA_FORMAT_TO_DC_TYPE_MAPPING[slug])
language = item.languages.all().values_list("slug", flat=True)
coverage = item.geographic_relevance.all().values_list("name", flat=True)
if isinstance(item, Library):
content_type.append("Collection")
rights = item.license.name
identifier = "http://%s%s" % (site.domain, item.get_absolute_url())
return render_to_string("oai/oer/oai_dc.xml", locals())
def populate_item_from_search_result(result):
item = result.get_stored_fields()
item["identifier"] = "%s.%s.%s" % (result.app_label, result.model_name, result.pk)
if item.get("collection"):
collection_id = item["collection"]
item["collection"] = {
"name": get_name_from_id(Collection, collection_id),
"slug": get_slug_from_id(Collection, collection_id),
}
if item.get("general_subjects"):
item["general_subjects"] = [get_name_from_id(GeneralSubject, id) for id in item["general_subjects"]]
if item.get("grade_levels"):
item["grade_levels"] = [get_name_from_id(GradeLevel, id) for id in item["grade_levels"]]
if item.get("topics"):
topics = []
for id in item["topics"]:
topic = get_object(Topic, pk=id)
if not topic:
continue
topics.append(topic)
item["topics"] = topics
item["is_evaluated"] = bool(result.evaluated_rubrics)
model = result.model
namespace = getattr(model, "namespace", None)
if namespace:
item["get_absolute_url"] = reverse("materials:%s:view_item" % namespace, kwargs=dict(slug=item["slug"]))
item["save_item_url"] = reverse("materials:%s:save_item" % namespace, kwargs=dict(slug=item["slug"]))
item["unsave_item_url"] = reverse("materials:%s:unsave_item" % namespace, kwargs=dict(slug=item["slug"]))
item["add_tags_url"] = reverse("tags:add_tags", args=(result.app_label, result.model_name, result.pk))
item["toolbar_view_url"] = reverse("materials:%s:toolbar_view_item" % namespace, kwargs=dict(slug=item["slug"]))
item["align_url"] = reverse("curriculum:align", args=(result.app_label, result.model_name, result.pk))
else:
item["get_absolute_url"] = result.object.get_absolute_url()
return item
def build_metadata(self, item, site):
if isinstance(item, SearchResult):
search_result = item
item = search_result.object
else:
search_result = None
languages = []
geographic_relevance = []
authors = []
identifier = self.repository.build_header(item).identifier
media_formats = []
course_material_types = []
library_material_types = []
community_types = []
grade_levels = []
license = item.license
collection = None
if search_result:
if search_result.languages:
languages = [get_slug_from_id(Language, int(id)) for id in search_result.languages]
if search_result.geographic_relevance:
geographic_relevance = [get_name_from_id(GeographicRelevance, int(id)) for id in search_result.geographic_relevance]
authors = search_result.authors
if search_result.media_formats:
media_formats = [get_slug_from_id(MediaFormat, int(id)) for id in search_result.media_formats]
if search_result.course_material_types:
course_material_types = [get_name_from_id(CourseMaterialType, int(id)) for id in search_result.course_material_types]
if search_result.library_material_types:
library_material_types = [get_name_from_id(LibraryMaterialType, int(id)) for id in search_result.library_material_types]
if search_result.community_types:
community_types = [get_name_from_id(CommunityType, int(id)) for id in search_result.community_types]
if search_result.grade_levels:
grade_levels = [get_name_from_id(GradeLevel, int(id)) for id in search_result.grade_levels]
if search_result.collection:
collection = Collection.objects.get(pk=int(search_result.collection))
if search_result.general_subjects:
general_subjects = [get_name_from_id(GeneralSubject, int(id)) for id in search_result.general_subjects]
else:
languages = item.languages.values_list("slug", flat=True)
geographic_relevance = item.geographic_relevance.all().values_list("name", flat=True)
authors = item.authors.all().values_list("name", flat=True)
if isinstance(item, (Course, Library)):
media_formats = item.media_formats.values_list("slug", flat=True)
collection = item.collection
if isinstance(item, Course):
course_material_types = item.material_types.all().values_list("name", flat=True)
if isinstance(item, Library):
library_material_types = item.material_types.all().values_list("name", flat=True)
if isinstance(item, CommunityItem):
community_types = item.community_types.all().values_list("name", flat=True)
grade_levels = item.grade_levels.all().values_list("name", flat=True)
general_subjects = item.general_subjects.all().values_list("name", flat=True)
general = {}
general["identifier"] = [{'catalog':self.repository.identifier, 'entry': identifier}]
if isinstance(item, (Course, Library)):
if item.collection and item.provider_id:
general['identifier'].append({'catalog':item.collection.name, 'entry':item.provider_id})
general["title"] = item.title
general["description"] = item.abstract
general["keyword"] = item.keywords.all().values_list("name", flat=True)
if languages:
general["language"] = languages
else:
general["language"] = ["en"]
general["coverage"] = geographic_relevance
life_cycle = {}
life_cycle["contribute"] = []
if authors:
for name in authors:
author = dict(role="author", entity=build_vcard([('N', name), ('FN', name)]))
if item.content_creation_date:
author['date'] = item.content_creation_date.strftime(DATETIME_FORMAT_LRE3)
life_cycle['contribute'].append(author)
if isinstance(item, (Course, Library)):
if item.institution:
institution = {'role':'publisher'}
institution['entity'] = build_vcard([('N', item.institution.name),
('FN', item.institution.name),
('ORG', item.institution.name)])
if item.content_creation_date:
institution['date'] = item.content_creation_date.strftime(DATETIME_FORMAT_LRE3)
life_cycle['contribute'].append(institution)
meta_metadata = {}
meta_metadata["identifier"] = dict(catalog=self.repository.identifier,
entry=identifier[len(self.repository.identifier_prefix):])
meta_metadata["language"] = general["language"][0]
technical = {}
technical["format"] = media_formats
technical["location"] = "http://%s%s" % (site.domain, item.get_absolute_url())
technical["installationRemarks"] = item.tech_requirements
educational = {}
educational["learningResourceType"] = course_material_types or library_material_types or community_types or []
educational["context"] = grade_levels
educational["typicalagerange"] = grade_level_to_age_range(grade_levels)
if isinstance(item, (Course, Library)):
educational["description"] = item.curriculum_standards
rights = {}
if not license.name or 'public domain' in license.name.lower() or license.name.lower() == 'no license':
rights['copyrightAndOtherRestrictions'] = 'no'
else:
rights['copyrightAndOtherRestrictions'] = 'yes'
_description = u""
if license.copyright_holder:
_description += u'Copyright Holder: %s' % license.copyright_holder
if license.description or license.name:
_description += '\n\n%s' % (license.description or license.name)
if license.url:
_description += '\n\n%s' % license.url
rights['description'] = {"en": _description.strip()}
if license.type.startswith("cc-"):
rights['description']['x-t-cc-url'] = license.url
relation = {}
if collection:
relation["description"] = collection.name
relation["identifier"] = "http://%s%s" % (site.domain,
reverse("materials:%s:collection_index" % item.namespace,
kwargs=dict(collection=collection.slug)))
annotation = []
for review in item.reviews.all().select_related():
_name = u"%s %s" % (review.user.first_name, review.user.last_name)
_name = _name.strip()
annotation.append({
'entity': build_vcard([('N', _name), ('FN', _name)]),
'description': review['text'],
'date': review.timestamp.strftime(DATETIME_FORMAT_LRE3)
})
classification = general_subjects
if item.published_on:
published_on = item.published_on.strftime(DATETIME_FORMAT_LRE3)
return render_to_string("oai/oer/oai_oer2.xml", locals())
def index(
request,
general_subjects=None,
grade_levels=None,
course_material_types=None,
library_material_types=None,
collection=None,
keywords=None,
license=None,
course_or_module=None,
community_types=None,
community_topics=None,
microsite=None,
model=None,
search=False,
tags=None,
subjects=None,
format=None,
topics=None,
alignment=None,
facet_fields=None,
):
if not facet_fields:
facet_fields = [
"general_subjects",
"grade_levels",
"keywords",
"course_material_types",
"media_formats",
"cou_bucket",
"indexed_topics",
]
if model:
index_namespace = model.namespace
else:
index_namespace = None
if tags or subjects:
# Tags and subjects are old path filters which are combined to
# keywords filter now.
# Redirect to keyword index.
keywords = tags or subjects
if index_namespace:
url = reverse("materials:%s:keyword_index" % index_namespace, kwargs=dict(keywords=keywords))
else:
url = reverse("materials:keyword_index", kwargs=dict(keywords=keywords))
return HttpResponsePermanentRedirect(url)
if keywords:
slugified_keywords = slugify(keywords)
if not slugified_keywords:
raise Http404()
if slugified_keywords != keywords:
# Keywords should be slugified.
# Redirect to keyword index with slugified keyword.
if index_namespace:
url = reverse("materials:%s:keyword_index" % index_namespace, kwargs=dict(keywords=slugified_keywords))
else:
url = reverse("materials:keyword_index", kwargs=dict(keywords=slugified_keywords))
return HttpResponsePermanentRedirect(url)
query_string_params = {}
filter_values = {}
page_title = u"Browse"
page_subtitle = u""
breadcrumbs = [{"url": reverse("materials:browse"), "title": u"OER Materials"}]
if not format:
format = "html"
if request.REQUEST.get("feed", None) == "yes":
format = "rss"
elif request.REQUEST.get("csv", None) == "yes":
if not request.user.is_authenticated() or not request.user.is_staff:
raise Http404()
format = "csv"
query = SearchQuerySet().narrow("is_displayed:true")
if model:
query = query.models(model)
path_filter = None
hidden_filters = {}
for filter_name in PATH_FILTERS:
value = locals()[filter_name]
if value is not None:
filter = FILTERS[filter_name]
query = filter.update_query(query, value)
path_filter = filter_name
if page_subtitle:
page_subtitle = u"%s → %s" % (page_subtitle, filter.page_subtitle(value))
else:
page_subtitle = filter.page_subtitle(value)
filter_values[filter_name] = value
visible_filters = [
"search",
"general_subjects",
"grade_levels",
"course_material_types",
"media_formats",
"cou_bucket",
]
if microsite:
microsite = Microsite.objects.get(slug=microsite)
visible_filters.append("topics")
search_query = u""
for filter_name, filter in FILTERS.items():
if filter_name == path_filter:
continue
value = filter.extract_value(request)
if value is not None:
query = filter.update_query(query, value)
query_string_params = filter.update_query_string_params(query_string_params, value)
filter_values[filter_name] = value
if filter_name not in visible_filters:
hidden_filters[filter.request_name] = value
if filter_name == "search":
search_query = value
if search:
if not search_query:
if filter_values:
return HttpResponsePermanentRedirect(
reverse("materials:index") + serialize_query_string_params(query_string_params)
)
else:
messages.warning(request, u"You should specify the search term")
return HttpResponsePermanentRedirect(reverse("materials:advanced_search"))
page_title = u"Search Results"
page_subtitle = search_query
breadcrumbs = [{"url": reverse("materials:search"), "title": page_title}]
elif model == CommunityItem:
breadcrumbs = [{"url": reverse("materials:community"), "title": u"OER Community"}]
if microsite:
breadcrumbs = [
{
"url": reverse("materials:microsite", kwargs=dict(microsite=microsite.slug)),
"title": u"%s Home" % microsite.name,
}
]
if not page_subtitle and model:
page_subtitle = u"Content Type: %s" % model._meta.verbose_name_plural
elif not page_subtitle and filter_values:
filter_name = filter_values.keys()[0]
filter = FILTERS[filter_name]
page_subtitle = filter.page_subtitle(filter_values[filter_name])
index_params = IndexParams(request, format, search_query)
query_string_params = index_params.update_query_string_params(query_string_params)
index_url = request.path + serialize_query_string_params(query_string_params, ignore_params=["batch_start"])
if page_subtitle:
index_title = u"%s: %s" % (page_title, page_subtitle)
else:
index_title = page_title
feed_url = request.path + serialize_query_string_params(
dict(query_string_params.items() + [("feed", "yes")]), ignore_params=["batch_start"]
)
csv_url = request.path + serialize_query_string_params(
dict(query_string_params.items() + [("csv", "yes")]), ignore_params=["batch_start"]
)
batch_end = index_params.batch_start + index_params.batch_size
if len(filter_values) == 1 and "featured" in filter_values:
query = query.order_by("-featured_on")
elif len(filter_values) == 1 and "evaluated_rubrics" in filter_values:
query = query.order_by("-evaluation_score_rubric_%i" % filter_values["evaluated_rubrics"][0])
elif index_params.query_order_by is not None:
query = query.order_by(index_params.query_order_by)
if index_params.sort_by == "visits" and not filter_values:
query = query.narrow("visits:[1 TO *]")
items = []
if format == "html":
for facet_field in facet_fields:
query = query.facet(facet_field)
total_items = len(query)
if total_items and index_params.batch_start >= total_items:
return HttpResponsePermanentRedirect(index_url)
results = query[index_params.batch_start : batch_end]
for result in results:
if result is None:
continue
items.append(populate_item_from_search_result(result))
pagination = Pagination(
request.path, query_string_params, index_params.batch_start, index_params.batch_size, total_items
)
facets = query.facet_counts().get("fields", {})
index_filters = build_index_filters(visible_filters, facets, filter_values, path_filter, microsite)
all_keywords = query.count() and facets.get("keywords", []) or []
if len(all_keywords) > MAX_TOP_KEYWORDS:
top_keywords = get_tag_cloud(dict(all_keywords[:MAX_TOP_KEYWORDS]), 3, 0, 0)
all_keywords = get_tag_cloud(dict(all_keywords), 3, 0, 0)
else:
top_keywords = get_tag_cloud(dict(all_keywords), 3, 0, 0)
all_keywords = []
for keyword in top_keywords:
name = (
get_name_from_slug(Keyword, keyword["slug"])
or get_name_from_slug(Tag, keyword["slug"])
or keyword["slug"]
)
keyword["name"] = name
for keyword in all_keywords:
name = (
get_name_from_slug(Keyword, keyword["slug"])
or get_name_from_slug(Tag, keyword["slug"])
or keyword["slug"]
)
keyword["name"] = name
if request.is_ajax():
output = render_to_string("materials/include/index-items.html", RequestContext(request, locals()))
data = dict(
items=output,
first_item_number=pagination.first_item_number,
last_item_number=pagination.last_item_number,
total_items=pagination.total_items,
page_title=unicode(page_title),
page_subtitle=page_subtitle and unicode(page_subtitle or u""),
)
return JsonResponse(data)
return direct_to_template(request, "materials/index.html", locals())
elif format == "rss":
results = query[0:20]
for result in results:
if result is None:
continue
item = result.get_stored_fields()
if item.get("general_subjects"):
item["general_subjects"] = [get_name_from_id(GeneralSubject, id) for id in item["general_subjects"]]
namespace = getattr(result.model, "namespace", None)
if namespace:
item["get_absolute_url"] = reverse("materials:%s:view_item" % namespace, kwargs=dict(slug=item["slug"]))
else:
item["get_absolute_url"] = result.object.get_absolute_url()
item["model_verbose_name"] = result.model._meta.verbose_name_plural
items.append(item)
return direct_to_template(request, "materials/index-rss.xml", locals(), "text/xml")
elif format == "json":
results = query[index_params.batch_start : batch_end]
for result in results:
if result is None:
continue
data = result.get_stored_fields()
item = {
"id": result.id,
"title": data["title"],
"abstract": data["abstract"],
"url": data["url"],
"keywords": data["keywords_names"],
"subject": [get_slug_from_id(GeneralSubject, id) for id in (data["general_subjects"] or [])],
"grade_level": [get_slug_from_id(GradeLevel, id) for id in (data["grade_levels"] or [])],
"collection": data["collection"] and get_name_from_id(Collection, data["collection"]) or None,
}
items.append(item)
return JsonResponse(items)
elif format == "xml":
query = query.load_all()
results = query[index_params.batch_start : batch_end]
for result in results:
if result is None:
continue
object = result.object
data = result.get_stored_fields()
item = {"url": data["url"], "title": data["title"]}
if data.get("authors"):
item["author"] = data["authors"][0]
if data.get("institution"):
item["institution"] = get_name_from_id(Institution, data["institution"])
item["abstract"] = data["abstract"]
license = object.license
item["copyright_holder"] = license.copyright_holder
item["license_url"] = license.url
item["license_name"] = license.name
item["license_description"] = license.description
item["license_type"] = license.type
item["cou_bucket"] = license.bucket
if data["rating"]:
item["rating"] = "%.1f" % data["rating"]
item["fields"] = []
grade_levels = data.get("grade_levels")
if grade_levels:
item["fields"].append(
dict(
title=u"Grade Level",
param=FILTERS["grade_levels"].request_name,
value=u",".join([get_slug_from_id(GradeLevel, id) for id in grade_levels]),
content=u",".join([get_name_from_id(GradeLevel, id) for id in grade_levels]),
)
)
general_subjects = data.get("general_subjects")
if general_subjects:
item["fields"].append(
dict(
title=u"Subject",
param=FILTERS["general_subjects"].request_name,
value=u",".join([get_slug_from_id(GeneralSubject, id) for id in general_subjects]),
content=u",".join([get_name_from_id(GeneralSubject, id) for id in general_subjects]),
)
)
collection = data.get("collection")
if collection:
item["fields"].append(
dict(
title=u"Collection",
param=FILTERS["collection"].request_name,
value=get_slug_from_id(Collection, collection),
content=get_name_from_id(Collection, collection),
)
)
geographic_relevance = data.get("geographic_relevance")
if geographic_relevance:
item["fields"].append(
dict(
title=u"Geographic Regional Relevance",
param=FILTERS["geographic_relevance"].request_name,
value=u",".join([get_slug_from_id(GeographicRelevance, id) for id in geographic_relevance]),
content=u",".join([get_name_from_id(GeographicRelevance, id) for id in geographic_relevance]),
)
)
keywords = object.keywords.values("slug", "name")
if keywords:
item["fields"].append(
dict(
title=u"Keywords",
param=FILTERS["keywords"].request_name,
value=u",".join([k["slug"] for k in keywords]),
content=u",".join([k["name"] for k in keywords]),
)
)
tags = object.tags.values("slug", "name").order_by("slug").distinct()
if tags:
item["fields"].append(
dict(
title=u"Tags",
param=FILTERS["keywords"].request_name,
value=u",".join([k["slug"] for k in tags]),
content=u",".join([k["name"] for k in tags]),
)
)
items.append(item)
return direct_to_template(request, "materials/index-xml.xml", locals(), "text/xml")
elif format == "csv":
return csv_export(query, index_title)
