Status feature - vle

cdcontent/templates/cdcontent/cdcontent_home.html

@@ -48,7 +48,15 @@
     <div class="col-lg-9 col-md-9 col-sm-9 col-xs-9 col-lg-offset-3 col-md-offset-3 col-sm-offset-3">
         <span class='ajax-refresh ajax-refresh-add-foss'><i class="fa fa-2 fa-refresh fa-spin"></i></span>
         <input type="button" class="add_foss_lang btn btn-primary" value="Add selected FOSS"  tabindex="4" />
+        {% if is_valid_vle %}
         <input type="submit" class="btn btn-primary create_zip" value="Create ZIP file" tabindex="5" />
+        {% else %}
+        <div class="alert alert-danger" role="alert">
+            {{renewal_info}}
+            <p>Please renew subscription to download cdcontent.</p>
+            </div>
+        {% endif %}
+
     </div>
     </div>
     </fieldset>

csc/api/serializers.py

@@ -7,7 +7,7 @@
 from csc.models import Student, Student_certificate_course,CertifiateCategories, VLE, CSC, Transaction,CategoryCourses,Student_Foss
 from csc.api.utility import send_pwd_mail,map_foss_to_student
 
-from csc.utils import getFirstName,getLastName
+from csc.utils import getFirstName,getLastName,calculate_tenure_end
 
 from django.contrib.auth.hashers import make_password
 import random
@@ -195,7 +195,11 @@ def create(self, validated_data):
         vle = VLE.objects.create(**validated_data)
         vle_group = Group.objects.get(name='VLE') 
         vle_group.user_set.add(u)
-        t = Transaction.objects.create(vle=vle,csc=obj,transcdate=transaction_data[0]['transcdate'])
+
+        trans_start_date = transaction_data[0]['transcdate']
+        tenure_end_date = calculate_tenure_end(vle,trans_start_date)
+        t = Transaction.objects.create(vle=vle,csc=obj,transcdate=trans_start_date,tenure_end_date=tenure_end_date)
+
         send_pwd_mail(u)
         return vle
 
@@ -224,7 +228,10 @@ def update(self,instance,validated_data):
             c.is_valid(raise_exception=True)
             c.save()
         if has_transaction : 
-            t = Transaction.objects.create(vle=instance,csc=instance.csc,transcdate=transaction_data['transcdate'])
+            trans_start_date = transaction_data['transcdate']
+            tenure_end_date = calculate_tenure_end(vle,trans_start_date)
+            t = Transaction.objects.create(vle=instance,csc=instance.csc,transcdate=trans_start_date,tenure_end_date=tenure_end_date)
+
         if has_user:
             user_obj = instance.user
             if "email" in user_data:

csc/context_processor.py

@@ -0,0 +1,25 @@
+from csc.models import VLE, Transaction
+from datetime import date
+from django.conf import settings
+def is_vle_valid(request):
+    is_valid_vle = False
+    valid_days = 0
+    alert_tag = 'danger'
+    user = request.user
+    vle = None
+    expire_date = None
+    if user.is_authenticated:
+        vle = VLE.objects.filter(user=user).first()
+        if vle:
+            expire_date = Transaction.objects.filter(vle=vle).order_by('-tenure_end_date').values('tenure_end_date')[0]['tenure_end_date']
+            current_date = date.today()
+            if  current_date <= expire_date:
+                is_valid_vle = True
+                date_diff = expire_date - current_date 
+                valid_days = date_diff.days 
+                ALERT_DAYS = int(getattr(settings, 'ALERT_DAYS'))
+                if valid_days > ALERT_DAYS:
+                    alert_tag = 'info'
+    renewal_info = 'Your account is restricted due to non-renewal of subscription.'
+    return {'is_valid_vle':is_valid_vle,'alert_tag':alert_tag,'valid_days':valid_days,'tenure_end_date':expire_date,'renewal_info':renewal_info}
+

csc/migrations/0023_auto_20230421_1119.py

@@ -0,0 +1,22 @@
+# Generated by Django 3.0.3 on 2023-04-21 05:49
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('csc', '0022_auto_20230116_1539'),
+    ]
+
+    operations = [
+        migrations.RemoveField(
+            model_name='vle',
+            name='status',
+        ),
+        migrations.AlterField(
+            model_name='student',
+            name='date_of_registration',
+            field=models.DateField(blank=True, null=True),
+        ),
+    ]

csc/models.py

@@ -4,15 +4,17 @@
 from django.db import models
 from django.contrib.auth.models import User
 from django.forms import ChoiceField
+from django.core.exceptions import ValidationError
 from spokenlogin.models import *
 from model_utils import Choices
 from cms.models import State, District, City
 from django.forms import widgets
 from datetime import date
 from django.template.defaultfilters import slugify
+from django.conf import settings
 # from csc.utils import TEST_OPEN
 
-
+VLE_TENURE_DAYS = int(getattr(settings, 'VLE_TENURE_DAYS'))
 TEST_OPEN = 0
 REJECTED = 0
 APPROVED = 1
@@ -98,13 +100,11 @@ class CSC(models.Model):
     def __str__(self):
 
         return f"{self.city},{self.district}"
-
 
 class VLE(models.Model):
     csc = models.ForeignKey(CSC,on_delete=models.CASCADE) # edge case : 1 vle moves to another city, enrolls for csc with same email?? 
     user = models.ForeignKey(User,on_delete=models.CASCADE)
     phone = models.CharField(max_length=100)
-    status = models.BooleanField(default=True) # If the vle is inactivated for some reason
 
     class Meta:
         unique_together = ('csc','user')
@@ -160,7 +160,7 @@ class Student(models.Model):
     district = models.ForeignKey(District,on_delete=models.CASCADE,blank=True,null=True) 
     pincode = models.CharField(max_length=6,blank=True,null=True) 
     address = models.CharField(max_length=255,blank=True,null=True)
-    date_of_registration = models.DateField(default=date.today())
+    date_of_registration = models.DateField(null=True,blank=True)
     occupation = models.CharField(max_length=255,blank=True,null=True)
     category = models.CharField(max_length=255,blank=True,null=True)
     mdl_mail_sent = models.BooleanField(default=False)

csc/templates/csc/mark_attendance.html

@@ -50,7 +50,17 @@
                           <div class="card-text d-flex my-3">
                             <p class="me-5"><button class="btn btn-sm " id="btn_select_all" style="background-color: #90B77D">Select all </button></p>
                             <p class="me-5"><button class="btn btn-sm " id="btn_deselect_all"  style="background-color: #F29393">Deselect all </button></p>
-                            <p class="me-5"><button class="btn btn-sm btn-success" id="btn_mark_attendance1" type="submit" form="mark_atten">Mark attendance</button></p>
+                            <p class="me-5">
+                                {% if is_valid_vle %}
+                                    <button class="btn btn-sm btn-success" id="btn_mark_attendance1" type="submit" form="mark_atten">Mark attendance</button>
+                                {% else %}
+                                <div class="alert alert-danger" role="alert">
+                                    {{renewal_info}}
+                                    <p>Please renew subscription to mark attendance.</p>
+                                  </div>
+                                {% endif %}
+
+                            </p>
 
                             <!-- <p>Total Students selected : <span id="students_selected"></span></p> -->
                           </div>

csc/templates/csc/test.html

@@ -26,7 +26,15 @@
                     <form method="POST">
                         {% csrf_token %}
                         {{form | crispy}}
-                        <button type="submit" class="btn c-btn">Create Test</button>
+                        {% if is_valid_vle %}
+                            <button type="submit" class="btn c-btn">Create Test</button>
+                        {% else %}
+                        <div class="alert alert-danger" role="alert">
+                            {{renewal_info}}
+                            <p>Please renew subscription to create new test.</p>
+                          </div>
+                        {% endif %}
+
                     </form>
                     <hr>
                     <p><small>** Tests can be raised only for the FOSS which is assigned to your students! </small></p>

csc/templates/csc/test_assign.html

@@ -86,7 +86,15 @@
                         </tbody>
                       </table>
                 </div>
-                <button type="submit" name="action_type" value="add_students" class="btn  c-btn">Add students to the test</button>
+                {% if is_valid_vle %}
+                    <button type="submit" name="action_type" value="add_students" class="btn  c-btn">Add students to the test</button>
+                {% else %}
+                <div class="alert alert-danger" role="alert">
+                    {{renewal_info}}
+                    <p>Please renew subscription to assign new students to the test.</p>
+                  </div>
+                {% endif %}
+
             </form>
             <hr>
             <p><small>** Tests can be assigned to the students after 10 days of assigning FOSS ! </small></p>

csc/templates/csc/vle.html

@@ -82,6 +82,17 @@
 
 
 <div>
+  {% if  is_valid_vle %}
+  <div class="alert alert-{{alert_tag}}" role="alert">
+    <p>Your subscription will expire on {{tenure_end_date}} (Days remaining : {{valid_days}})</p>
+  </div>
+  {% else %}
+  <div class="alert alert-{{alert_tag}}" role="alert">
+    <p>Your subscription expired on {{tenure_end_date}}.You have restricted access to the interface.</p>
+  </div>
+  {% endif %}
+
+
   <div class="card mb-3">
     <div class="card-header">
       <div><i class="fas fa-user-circle mr-2">  </i>  <span>{{ user.first_name | title }} {{ user.last_name | title }}</span></div>

csc/utils.py

@@ -242,3 +242,14 @@ def get_test_valid_fosses(vle):
 def get_invig(vle):
     invigilators = Invigilator.objects.filter(vle=vle).order_by('user__first_name')
     return invigilators
+
+def calculate_tenure_end(vle,start_date):
+    prev_transactions = Transaction.objects.filter(vle=vle).order_by('-transcdate')
+    if prev_transactions:
+        prev_transaction = prev_transactions[0]
+        prev_end_date = prev_transaction.tenure_end_date
+        if start_date < prev_end_date:
+            tenure_end_date = prev_end_date + datetime.timedelta(days=VLE_TENURE_DAYS)
+            return tenure_end_date
+    tenure_end_date = start_date + datetime.timedelta(days=VLE_TENURE_DAYS)
+    return tenure_end_date

spoken_main_website/settings.py

@@ -93,6 +93,7 @@
                 'django.template.context_processors.media',
                 'django.template.context_processors.static',
                 'spoken_main_website.context_processor.settings_val',
+                'csc.context_processor.is_vle_valid',
             ],
         },
     },
@@ -295,4 +296,6 @@
 MDL_URL = os.getenv("MDL_URL")
 
 TIME_OUT = 15
-GOOGLE_TAG=os.getenv("GOOGLE_TAG")
+GOOGLE_TAG=os.getenv("GOOGLE_TAG")
+VLE_TENURE_DAYS=os.getenv("VLE_TENURE_DAYS",100)
+ALERT_DAYS=os.getenv("ALERT_DAYS",15)