Merge pull request #157 from sparkle-sparkle/predev

Show error if date entered is not in yyyy-mm-dd format

Author: tapaswenipathak

oshc/main/templates/contest_edit.html

@@ -21,14 +21,14 @@
         <div class="form-group">
             <label for="start_date" class="control-label col-xs-2">Start Date:</label>
             <div class="col-xs-3">
-                <input type="start_date" class="form-control" id="start_date" name="start_date" placeholder="YYYY-MM-DD">
+                <input type="start_date" class="form-control" id="start_date" name="start_date" placeholder="YYYY-MM-DD" pattern="(?:20)[0-9]{2}-(?:(?:0[1-9]|1[0-2])-(?:0[1-9]|1[0-9]|2[0-9])|(?:(?!02)(?:0[1-9]|1[0-2])-(?:30))|(?:(?:0[13578]|1[02])-31))" required>
             </div>
         </div>
 
         <div class="form-group">
             <label for="end_date" class="control-label col-xs-2">End Date:</label>
             <div class="col-xs-3">
-                <input type="end_date" class="form-control" id="end_date" name="end_date" placeholder="YYYY-MM-DD">
+                <input type="end_date" class="form-control" id="end_date" name="end_date" placeholder="YYYY-MM-DD" pattern="(?:20)[0-9]{2}-(?:(?:0[1-9]|1[0-2])-(?:0[1-9]|1[0-9]|2[0-9])|(?:(?!02)(?:0[1-9]|1[0-2])-(?:30))|(?:(?:0[13578]|1[02])-31))" required>
             </div>
         </div>
 
@@ -47,4 +47,4 @@
 
     </form>
 
-{% endblock %}
+{% endblock %}