select and where condition in codeigniter - php

Question

In this coding iam checking the whether email id is present in database.After that i need to change password.
function user_password($input, $serviceName){
$ipJson = json_encode($input);
$updateArray = array(
'email' => $input['email'],
'password' => md5($input['password']),
'user_modified_date' => date('Y-m-d H:i:s'),
);
$this->db->where('email', $input['email']);
$update = $this->db->update('users', $updateArray);
if ($update) {
$data['message'] = 'email id is present';
$status = $this->clamo_lib->return_status('success', $serviceName, $data, $ipJson);
}
else {
$data['message'] = 'Error In Updating Please Check Your Email ID';
$status = $this->clamo_lib->return_status('error', $serviceName, $data, $ipJson);
}
return $status;
}
if email is present in db i need to get "email id is present" message else i need to get "error"message.how i need to check the condition.

Answer 1

As you need to check that email address already in use or not.
So in model
$this->db->where("email",$input['email']);
$query = $this->db->get("users");
if($query->num_rows()>0){
$status['message'] = 'Email Already Exist';
}

Answer 2

function user_password($input, $serviceName)
{
$ipJson = json_encode($input);
$updateArray = array(
'email' => $input['email'],
'password' => md5($input['password']),
'user_modified_date' => date('Y-m-d H:i:s'),
);
$this->db->where('email', $input['email']);
$update = $this->db->update('users', $updateArray);
if ($update==TRUE)
{
$data['message'] = 'email id is present';
$status = $this->clamo_lib->return_status('success', $serviceName, $data, $ipJson);
}
else
{
$data['message'] = 'Error In Updating Please Check Your Email ID';
$status = $this->clamo_lib->return_status('error', $serviceName, $data, $ipJson);
}
return $status;
}
//change your update function in model something like this:
function update('users',$updatearray)
{
if(is_array($dataarray))
{
$this->db->trans_start();
$this->db->where('email',$this->input->post('email'));
$this->db->update('table',$updatearray);
$this->db->trans_complete();
return TRUE;
}
else
{
return FALSE
}
}