Django KeyPoints

Leave a Comment / Django, Python / By Ravi

Want to Register All the models in Django Admin Panel(admin.py)

import django.apps

models=django.apps.apps.get_model()
print(models)

for model in models:
    try:
        admin.site.register(model)
    except admin.sites.AlreadyRegistered:
        pass

Want to UnRegister model in Django Admin Panel(admin.py)

admin.site.unregister(django.contrib.sessions.models.Session)

Render A html page form passing the list view after submission(add.html)

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Add Item</title>
</head>
<body>
<form action="{% url 'add_bidding_item' %}" method="post">
            {% csrf_token %}

               <div class="form-group">
                  <label>Item Name</label>
                  <input name="item_name" type="text" class="form-control" required>
               </div>
               <div class="form-group">
                  <label>Price</label>
                  <input name="item_price" type="text" class="form-control" required>
               </div>
               <div class="form-group">
                  <select name="item_vendor_name">
                     {% for i in items %}
                     <option value="{{i.id}}" >{{i.vendor_name}}</option>
                     {% endfor %}
                  </select>
               </div>
                  <input type="submit" class="btn btn-success" value="Create Item">

         </form>
                  {% if message %}
                  <h1>{{msg}}</h1>
                       {% endif %}
</body>
</html>

Connect Django with MySql (setting.py) --pip install mysqlclient

DATABASES = {
    'default': {
      'ENGINE': 'django.db.backends.mysql',
      'NAME': 'put your database name',
      'USER': 'root',
      'PASSWORD': 'your Mysql Password',
      'HOST':'localhost',
      'PORT':'3306',
   }
}

Connect templates and static file (setting.py)

TEMPLATES = [
    {
        'BACKEND': 'django.template.backends.django.DjangoTemplates',
        'DIRS': [BASE_DIR, "templates"],
        'APP_DIRS': True,
        'OPTIONS': {
            'context_processors': [
                'django.template.context_processors.debug',
                'django.template.context_processors.request',
                'django.contrib.auth.context_processors.auth',
                'django.contrib.messages.context_processors.messages',
            ],
        },
    },
]


STATIC_URL = 'static/'

STATICFILES_DIRS = [
    BASE_DIR / "static",

]

Change Date Format (setting.py)

DATE_FORMAT = "Y-m-d"
USE_L10N = False

Change Time Format (setting.py)

TIME_ZONE = 'Asia/Kolkata'

Display Django Message in html page

{% if messages %}
   {% for message in messages %}
   <div class="alert {{message.tags}}" id="message_container">
     <span class="closebtn" onclick="this.parentElement.style.display='none';">&times;</span>
     <strong>{{ message }}!!</strong>
      {% endfor %}
   </div>
{% endif %}

style.css (Message styling)

.alert {
  padding: 5px;
  background-color: #f44336;
  color: white;
  border-radius: 5px;
  text-align: center;
  opacity: 2;
  transition: opacity 0.6s;
}

.alert.success {background-color: #04AA6D;}
.alert.info {background-color: #2196F3;}
.alert.warning {background-color: #ff9800;}
.alert.error {background-color: #7676a7;}


.closebtn {
  margin-left: 15px;
  color: white;
  font-weight: bold;
  float: right;
  font-size: 22px;
  line-height: 20px;
  cursor: pointer;
  transition: 0.3s;
}

.closebtn:hover {
  color: black;
}

script.js(For flash message -messsge disappear after 3 sec)

var message_ele = document.getElementById("message_container");

setTimeout(function(){
   message_ele.style.display = "none";
    }, 3000);
// Timeout is 3 sec, you can change it

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