Add package visualizations page

Why the hell not? Have fun clicking all the pretty buttons.

Signed-off-by: Dan McGee <dan@archlinux.org>

1 files changed, 59 insertions, 0 deletions

diff --git a/visualize/views.py b/visualize/views.py
new file mode 100644
index 00000000..68f5d4a5
--- /dev/null
+++ b/visualize/views.py
@@ -0,0 +1,59 @@
+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)
+
+    # now transform these results into two mappings: one ordered (repo, arch),
+    # and one ordered (arch, repo).
+    arch_groups = dict((a, { 'name': a, 'key': ':%s' % a, 'arch': a, 'repo': None, 'data': [] }) for a in arches)
+    repo_groups = dict((r, { 'name': r, 'key': '%s:' % r, 'arch': None, 'repo': r, 'data': [] }) 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: