Redesigns Multiple Select Filter Widget

Makes the filter widget work as it should so that it can
be integrated with the rest of the Django form handling
nicely.

Also fixes a lot of ugly code tangential to the widget.

Change-Id: Ib92db8e584f3d2162c6c43a18b75a57273bb18f5
Signed-off-by: Parker Berberian <pberberian@iol.unh.edu>

2 files changed, 16 insertions, 20 deletions

diff --git a/dashboard/src/booking/forms.py b/dashboard/src/booking/forms.py
index e48b293..df88cc6 100644
--- a/dashboard/src/booking/forms.py
+++ b/dashboard/src/booking/forms.py
@@ -48,8 +48,7 @@ class QuickBookingForm(forms.Form):
         )
 
         attrs = FormUtils.getLabData(0)
-        attrs['selection_data'] = 'false'
-        self.fields['filter_field'] = MultipleSelectFilterField(widget=MultipleSelectFilterWidget(attrs=attrs))
+        self.fields['filter_field'] = MultipleSelectFilterField(widget=MultipleSelectFilterWidget(**attrs))
         self.fields['length'] = forms.IntegerField(
             widget=NumberInput(
                 attrs={
diff --git a/dashboard/src/booking/quick_deployer.py b/dashboard/src/booking/quick_deployer.py
index ac69c8c..11f5437 100644
--- a/dashboard/src/booking/quick_deployer.py
+++ b/dashboard/src/booking/quick_deployer.py
@@ -96,25 +96,22 @@ class BookingPermissionException(Exception):
     pass
 
 
-def parse_host_field(host_field_contents):
-    host_json = json.loads(host_field_contents)
-    lab_dict = host_json['labs'][0]
-    lab_id = list(lab_dict.keys())[0]
-    lab_user_id = int(lab_id.split("_")[-1])
-    lab = Lab.objects.get(lab_user__id=lab_user_id)
-
-    host_dict = host_json['hosts'][0]
-    profile_id = list(host_dict.keys())[0]
-    profile_id = int(profile_id.split("_")[-1])
-    profile = HostProfile.objects.get(id=profile_id)
-
-    # check validity of field data before trying to apply to models
-    if len(host_json['labs']) != 1:
+def parse_host_field(host_json):
+    lab, profile = (None, None)
+    lab_dict = host_json['lab']
+    for lab_info in lab_dict.values():
+        if lab_info['selected']:
+            lab = Lab.objects.get(lab_user__id=lab_info['id'])
+
+    host_dict = host_json['host']
+    for host_info in host_dict.values():
+        if host_info['selected']:
+            profile = HostProfile.objects.get(pk=host_info['id'])
+
+    if lab is None:
         raise NoLabSelectedError("No lab was selected")
-    if not lab:
-        raise LabDNE("Lab with provided ID does not exist")
-    if not profile:
-        raise HostProfileDNE("Host type with provided ID does not exist")
+    if profile is None:
+        raise HostProfileDNE("No Host was selected")
 
     return lab, profile