Feature/dummy data pdp

I think it would be a good idea to merge this since the dummy data script is useful for different branches.

Changes in smash/web/templates/doctors/breadcrumb.html and smash/web/views/worker.py are cherry picks from other branch.

smash/web/forms/study_forms.py

 import logging
 
-from django.forms import ModelForm
-
-from web.models import Study, StudyNotificationParameters, StudyColumns
+from django.forms import ModelForm, ValidationError
+from web.models import Study, StudyNotificationParameters, StudyColumns, StudySubject
 
 logger = logging.getLogger(__name__)
 
@@ -12,6 +11,16 @@ class StudyEditForm(ModelForm):
     def __init__(self, *args, **kwargs):
         super(StudyEditForm, self).__init__(*args, **kwargs)
 
+    def clean_nd_number_study_subject_regex(self):
+        nd_number_study_subject_regex = self.cleaned_data.get(
+            'nd_number_study_subject_regex')
+
+        if StudySubject.check_nd_number_regex(nd_number_study_subject_regex) == False:
+            raise ValidationError(
+                'Please enter a valid nd_number_study_subject_regex regex.')
+
+        return nd_number_study_subject_regex
+
     class Meta:
         model = Study
         fields = '__all__'
@@ -21,7 +30,8 @@ class StudyEditForm(ModelForm):
 class StudyNotificationParametersEditForm(ModelForm):
 
     def __init__(self, *args, **kwargs):
-        super(StudyNotificationParametersEditForm, self).__init__(*args, **kwargs)
+        super(StudyNotificationParametersEditForm,
+              self).__init__(*args, **kwargs)
 
     class Meta:
         model = StudyNotificationParameters