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-rw-r--r--visualize/views.py69
1 files changed, 69 insertions, 0 deletions
diff --git a/visualize/views.py b/visualize/views.py
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+++ b/visualize/views.py
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+from django.db.models import Count, Sum
+from django.http import HttpResponse
+from django.utils import simplejson
+from django.views.decorators.cache import cache_page
+from django.views.generic.simple import direct_to_template
+
+from main.models import Package, Arch, Repo
+
+def index(request):
+ return direct_to_template(request, 'visualize/index.html', {})
+
+def arch_repo_data():
+ qs = Package.objects.select_related().values(
+ 'arch__name', 'repo__name').annotate(
+ count=Count('pk'), csize=Sum('compressed_size'),
+ isize=Sum('installed_size'),
+ flagged=Count('flag_date')).order_by()
+ arches = Arch.objects.values_list('name', flat=True)
+ repos = Repo.objects.values_list('name', flat=True)
+
+ def build_map(name, arch, repo):
+ key = '%s:%s' % (repo or '', arch or '')
+ return {
+ 'key': key,
+ 'name': name,
+ 'arch': arch,
+ 'repo': repo,
+ 'data': [],
+ }
+
+ # now transform these results into two mappings: one ordered (repo, arch),
+ # and one ordered (arch, repo).
+ arch_groups = dict((a, build_map(a, a, None)) for a in arches)
+ repo_groups = dict((r, build_map(r, None, r)) for r in repos)
+ for row in qs:
+ arch = row['arch__name']
+ repo = row['repo__name']
+ values = {
+ 'arch': arch,
+ 'repo': repo,
+ 'name': '%s (%s)' % (repo, arch),
+ 'key': '%s:%s' % (repo, arch),
+ 'csize': row['csize'],
+ 'isize': row['isize'],
+ 'count': row['count'],
+ 'flagged': row['flagged'],
+ }
+ arch_groups[arch]['data'].append(values)
+ repo_groups[repo]['data'].append(values)
+
+ data = {
+ 'by_arch': { 'name': 'Architectures', 'data': arch_groups.values() },
+ 'by_repo': { 'name': 'Repositories', 'data': repo_groups.values() },
+ }
+ return data
+
+@cache_page(1800)
+def by_arch(request):
+ data = arch_repo_data()
+ to_json = simplejson.dumps(data['by_arch'], ensure_ascii=False)
+ return HttpResponse(to_json, mimetype='application/json')
+
+@cache_page(1800)
+def by_repo(request):
+ data = arch_repo_data()
+ to_json = simplejson.dumps(data['by_repo'], ensure_ascii=False)
+ return HttpResponse(to_json, mimetype='application/json')
+
+# vim: set ts=4 sw=4 et: