Fetching information from the database MYSQL & Codeigniter
Question
the previous question is here incase you guys needed a other information:
Fetching information from the database
ANOTHER UPDATE
Although all of you have been very helpful. I've managed to get outputs but i'm still really really confused lets say that I want to first see the outpurs so im disregarding the controller.
i'll make a controller after i see that my commands are correct :) i dont know why but thats kindo of how i get to understand the whole concept. anyway..
for my membership_model.php
function member_here()
{
$this->db->select('');
$this->db->from('membership');
$this->db->where('username',$this->input->post('username'));
$q=$this->db->get('');
if($q->num_rows() > 0) {
$data = array();
foreach($q->result() as $row) {
$data=$row;
}
return $data;
}
}
and my signup_view.php
<html>
<head>
<title></title>
</head>
<body>
<?php $this->load->view('includes/header')?>
<div align="right"><?php echo anchor('login/signin', 'Login');?></div>
<?php
$option1 = array(
'name' => 'What was your childhood nickname?',
'value' => 'What was your childhood nickname?'
);
$option2= array(
'name' => 'What is your pet\'s name?',
'value' => 'What is your pet\s name?'
);
$option3= array(
'name' => 'In what city were you born?',
'value' => 'In what city were you born?'
);
$option4= array(
'name' => 'What is the color of your eyes?',
'value' => 'What is the color of your eyes?'
);
$option5= array(
'name' => 'What is your favorite color?',
'value' => 'What is your favorite color?'
);
echo form_open('login/create_member');
echo "<table width=\"80%\ cellpadding=\"3px\">
<tr>
<td>User Information:</td>
</tr>
<tr>
<td> </td>
</tr>";
echo "<tr><td>First Name*: </td></tr>";
echo "<tr><td>";
echo form_input('first_name', set_value('first_name'));
echo "</tr></td>";
echo "<tr><td>Last Name*: </td></tr>";
echo "<tr><td>";
echo form_input('last_name', set_value('last_name'));
echo "</td></tr>";
echo "<tr><td>Email Address*: </td></tr>";
echo "<tr><td>";
echo form_input('email_address', set_value('email_address'));
echo "</tr></td>";
echo "<tr><td>Gender: </td></tr>";
echo "<tr><td>";
?>
<input type="radio" name="gender" value="Male" />Male
<input type="radio" name="gender" value="Female" />Female
<?php
echo "</tr></td>";
echo "<tr>
<td></td>
</tr>
</table>";
?>
<?php
echo "<table width=\"80%\ cellpadding=\"3px\">
<tr>
<td> Account Information:</td>
</tr>
<tr>
<td> </td>
</tr>";
echo "<tr><td>Userame*: </td></tr>";
echo "<tr><td>";
echo form_input('username', set_value('username'));
echo "</td></tr>";
echo "<tr><td>Password*: </td></tr>";
echo "<tr><td>";
echo form_password('password');
echo "</td></tr>";
echo "<tr><td>Password Confirmation*: </td></tr>";
echo "<tr><td>";
echo form_password('password2');
echo "</td></tr>";
echo "<tr><td>";
echo "Security Question*:";
echo "</td></tr>";
echo "<tr><td>";
?>
<select name = "security_question" value="security question">
<option value = "What was your childhood nickname?">What was your childhood nickname?</option>
<option value = "What is your pet's name?">What is your pet's name?</option>
<option value = "In what city were you born?">In what city were you born?</option>
<option value = "What is the color of your eyes?">What is the color of your eyes?</option>
<option value = "What is your favorite color?">What is your favorite color?</option>
</select>
<?php
echo "</td></tr>";
echo "<tr><td>";
echo "Security Answer*:";
echo "</td></tr>";
echo "<tr><td>";
echo form_input('security_answer');
echo "</td></tr>";
echo "<tr><td>";
echo form_submit('submit', 'Register');
echo form_reset('reset', 'Reset');
echo "</tr></td>";
echo form_close();
echo "<tr>
<td></td>
</tr>
</table>";
?>
<?php echo validation_errors('<p class="error">');?>
So, thats all my code. I'm trying to get the first_name, last_name, email_address and all the other information of the logged in user to come out from the database.
if i use $data[]=$row; instead of $data=$row; in my model an error occurs saying this:
Severity: Notice
Message: Trying to get property of non-object
Filename: views/members_area.php
Line Number: 20
So, what should I do. i'm coding without the controller. i'm just checking the results thanks!!
2 answers
solution1
0 ACCPTED 2012-11-12 04:50:40
There are a few things that could be clarified:
- A
modelis a entity that persists in the database. In your case: Membership - A
controlleris in charge of load the model, and pass it to the view to be showed - A
viewonly should have html markup, no functions, no logic.
Database
Assuming that your database have the structure below.
+---------------+-----------+------------+--------------------+
| id_membership | username | name | email |
+---------------+-----------+------------+--------------------+
| 1 | Marishka | marishkapv | marishka@email.com |
| 2 | johndoe | John | john@doe.com |
| 3 | dennisv | Dennis | dennis@v.com |
+---------------+-----------+------------+--------------------+
Model
You could build your model class Membership extends CI_Model at /application/models/membership.php file.
class Membership extends CI_Model {
function __construct()
{
parent::__construct();
}
function member_here()
{
$this->db->select('');
$this->db->from('membership');
$this->db->where('username',$this->input->post('username'));
$q = $this->db->get('');
if($q->num_rows() > 0)
{
$data = array();
foreach($q->result() as $row)
{
$data=$row;
}
return $data;
}
}
}
Controller
Supposing that your have a login page at example.com/index.php/login , this should resides at /application/controllers/login.php as below:
class Login extends CI_Controller
{
function __construct()
{
parent::__construct();
}
public function index()
{
$this->load->view('login_view');
}
public function result()
{
$this->load->model('membership');
$data['member'] = $this->membership->member_here();
$this->load->view('result_view', $data);
}
}
Look like the models is loaded throws this two lines:
//Load the model in make use of its functions
$this->load->model('membership');
//load the row whit the given username
//the result is assigned to array with the key "member", in the view you access this
//value with $member var
$data['member'] = $this->membership->member_here();
Views
As you noted in controller code, there are two views files, login_view and result_view . The first one will show a html form where you can put the username in order to trigger a select query. The result_view show the informacion of the member according to the selected membership
login_view.php
<html>
<head></head>
<body>
<form action="login/result" method="post">
Type your username: <input type="text" name="username" />
<input type="submit" value="Load from database" />
</form>
</body>
</html>
result_view.php
<h4>Details:</h4>
<p>
Id: <?=$member->id_membership?> <br />
Username: <?=$member->username?> <br />
Email: <?=$member->email?>
</p>
solution2
0 2012-11-12 06:07:33
This can be very simple read the user guide for more simple examples
Model
Class Members Extends CI_Model
{
function __construct(){
parent::__construct();
}
function member_here()
{
$this->db->where('username',$this->input->post('username'));
$query = $this->db->get('membership');
if($query->num_rows() > 0)
{
return $query->result();
}
}
}
Controlelr
Class Login extends CI_Controller
{
function __construct()
{
parent::__construct();
}
public function index()
{
$this->load->view('login_view');
}
public function result()
{
$this->load->model('membership');
$data['member'] = $this->membership->member_here();
$this->load->view('result_view', $data);
}
}
And in View you can simple do it
<?php
foreach($member as $row){
?>
<option value="<?php echo $row->id?>"><?php echo $row->name?></option>
<?php
}
?>
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