function validate_signup()
{
require_once WPPR_PLUGIN_DIR . '/models/signup-model.php';
$model = new Signup_Model();
if (username_exists($this->username)) {
return new WP_Error('username_unavailable', 'Username already taken');
}
if (!validate_username($this->username)) {
// invalid username
return new WP_Error('username_invalid', 'Username is invalid');
}
if (strlen($this->username) < 4) {
return new WP_Error('username_length', 'Username too short. At least 4 characters is required');
}
if (!is_email($this->email)) {
return new WP_Error('email_invalid', 'Email is not valid');
}
if (email_exists($this->email)) {
return new WP_Error('email', 'Email is already in used.');
}
if ($model->validate_email($this->email)) {
return new WP_Error('email', 'You already used this email to signup. Please check your email for confirmation.');
}
if (strlen($this->password) <= 5) {
return new WP_Error('password_too_short', 'Password is too short.');
}
}
