I have created a django application. The application has a registration form. I inserted a jQuery plugin for birthday picker. But now when i fill the registration form and save it throws this error "**IntegrityError at /registrationForm/  

(1048, "Column 'birthday' cannot be null") "** . I will paste my code here.

**registrationForm.html**

```
<html xmlns:fb="http://www.facebook.com/2008/fbml">
<head>
<script type="text/javascript" src="http://10.1.0.90:8080/static/jquery.js"></script>
<script type="text/javascript" src="http://10.1.0.90:8080/static/jquery-ui.min.js"></script>
<link href="http://10.1.0.90:8080/static/jquery-ui.css" rel="stylesheet" type="text/css"/>
<script type="text/javascript" src="http://10.1.0.90:8080/static/bday-picker.js"></script>

<script type="text/javascript">
      $(document).ready (function() {
        //$( "#datepicker" ).datepicker();
        $("#picker1").birthdaypicker({});
    });
   //Created / Generates the captcha function    
    function DrawCaptcha()
    {
    var a = Math.ceil(Math.random() * 10)+ '';
    var b = Math.ceil(Math.random() * 10)+ '';       
    var c = Math.ceil(Math.random() * 10)+ '';  
    var d = Math.ceil(Math.random() * 10)+ '';  
    var e = Math.ceil(Math.random() * 10)+ '';  
    var f = Math.ceil(Math.random() * 10)+ '';  
    var g = Math.ceil(Math.random() * 10)+ '';  
    var code = a + ' ' + b + ' ' + ' ' + c + ' ' + d + ' ' + e + ' '+ f + ' ' + g;
    document.getElementById("txtCaptcha").value = code
    }

    // Validate the Entered input aganist the generated security code function   
    function ValidCaptcha(){
        var str1 = removeSpaces(document.getElementById('txtCaptcha').value);
        var str2 = removeSpaces(document.getElementById('txtInput').value);
        if (str1 == str2) return true;        
        return false;

    }

    // Remove the spaces from the entered and generated code
    function removeSpaces(string)
    {
        return string.split(' ').join('');
    }

    </script>
</head>
<title>Login/Registration Page</title>
<body bgcolor="#736F6E" onLoad="DrawCaptcha();">
<div align="center">
<form name="userInputForm" method="POST" id="myFormid" action="http://10.1.0.90:8080/login/">
  <div style="float:left;width:100%;">
    <p style="float:left;margin-right:10px;width:auto;">
      <label style="float:left;">Email id</label>
      <br/>
      <input type="text" name="username" size="25" />
    </p>
    <p style="float:left;margin-right:10px;width:auto;">
      <label style="float:left;">Password</label>
      <br/>
      <input type="password" name="password" size="25" />
      {% if invalid %}
      Mismatch in your email/password. 
      {% endif %} </p>
  </div>

  <p style="clear:both;float:left;">
    <input type="submit" value="Log in" style="float:left;margin-right:4px;"/>&nbsp;
    {% load facebookconnect %}
    {% facebook_connect_login_button %}
    {% facebook_connect_script %}

    &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<a HREF="http://10.1.0.90:8080/forgotPassword/">Forgotten your password?</a></p>
  </div>
</form>
<br>

<br>
<br>

<script type="text/javascript">
function userCheck(){
    /*document.getElementById('myFormid').action = "http://10.1.0.90:8080/login/";
    if ((document.userInputForm.username.value.length==0)) */
}
</script>
<form name ="myform"  method="POST" id='FormID'>
<table>
  <tr>
    <td>First name</td>
    <td><input type="text" name="firstName" value=""  maxlength="100" />
      <b id="firstNameID" style="font-family:Times New Roman;color:#B4045F;font-size:14px;"> </td>
  </tr>
  <tr>
    <td>Last name</td>
    <td><input type="text" name="lastName" value="" maxlength="100" />
    </td>
  </tr>
  <tr>
    <td>E-mail</td>
    <td><input type="text" name="email" value="" maxlength="100" />
    </td>
  </tr>
  <tr>
    <td>Password</td>
    <td><input type="password" name="password" value="" maxlength="100"  />
      <b id="passwordID" style="font-family:Times New Roman;color:#B4045F;font-size:14px;"> </td>
  </tr>
  <tr>
    <td>Re-Type Password</td>
    <td><input type="password" name="password1" value="" maxlength="100"  />
      <b id="passwordID1" style="font-family:Times New Roman;color:#B4045F;font-size:14px;"> </td>
  </tr>
  <tr>
    <td>Gender:</td>
    <td><input type="radio" name="sex" value="male" />
      Male
      <input type="radio" name="sex" value="female" />
      Female </td>
  </tr>
  <tr>
    <td>Birthday</td>
    <td><!--<input type="text" name="datepicker" id="datepicker" value="" maxlength="100" />-->
<div class="picker" id="picker1" name="birthday" value=""></div>

    </td>
  </tr>
  <tr>

  <td width="150">Captcha</td>
    <td><input type="text" id="txtCaptcha" 
            style="background-image:url(1.jpg); text-align:center; border:1px;
            font-weight:bold; font-family:Modern" />
      <input type="button" id="btnrefresh" value="Refresh" onClick="DrawCaptcha();" />
    </td>
    </tr>
    <tr>
        <td>Enter above text</td>
        <td style="float:left;"><input type="text" id="txtInput" value="" maxlength="100" />
      <b id="textcaptcha" style="font-family:Times New Roman;color:#B4045F;font-size:14px;"> </td>
    </tr>

</table>

</form>

<div style="width:200; float:left; margin:20px 0 0 155px;">
  <input type="button" value="Sign Up" onClick="isEmpty();"/>
</div>
<script type="text/javascript">
function isEmpty(){
    if  ((document.myform.firstName.value.length==0)) 
        {
        document.getElementById('firstNameID').innerHTML = 'Please fill this field';
        return true;
        }
    else if ((document.myform.password.value.length==0)) 
        {
        document.getElementById('passwordID').innerHTML = 'Please fill this field';
        return true;
        }
    else if (document.myform.password.value != document.myform.password1.value)
        {
        document.getElementById('passwordID1').innerHTML = 'Password mismatch';
        return true;
        }
    else if (! ValidCaptcha())
        {
            document.getElementById('textcaptcha').innerHTML = 'Please fill the captcha correctly';
        }

    else 
        { 
        document.getElementById('FormID').action = "http://10.1.0.90:8080/registrationForm/";
        document.getElementById('FormID').submit();
        return false; 
        }
}
</script><br><br>
</body>
</html>

```

**views**

```
def registrationForm(request):
    if request.method == "POST":  
        firstName = request.POST.get("firstName")
        lastName = request.POST.get("lastName")
        email = request.POST.get("email")
        password = request.POST.get("password")
        sex = request.POST.get("sex")
        birthday = request.POST.get("birthday")
        UniversityDetails(firstName=firstName,lastName=lastName,email=email,password=password,sex=sex,birthday=birthday).save()

        send_mail('Email Verification', 'You have registered successfully', 'rv@gmail.com',
    [email], fail_silently=False)

        return render_to_response('login.html')

    return render_to_response("registrationForm.html")

```