Added first pass at settings form API functions in base Payment Gateway class
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Matty
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@ -21,6 +21,13 @@ class woocommerce_payment_gateway {
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var $icon;
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var $description;
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var $plugin_id = 'woocommerce_';
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var $settings = array();
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var $form_fields = array();
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var $errors = array();
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var $sanitized_fields = array();
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function is_available() {
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if ($this->enabled=="yes") :
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@ -48,4 +55,214 @@ class woocommerce_payment_gateway {
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function process_payment() {}
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function validate_fields() { return true; }
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function init_form_fields () { return __( 'This function needs to be overridden by your payment gateway class.', 'woothemes' ); }
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/**
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* Admin Panel Options Processing
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* - Saves the options to the DB
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*
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* @since 1.0.0
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*/
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public function process_admin_options() {
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// TO DO: NONCE SECURITY CHECK
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$this->validate_settings_fields();
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if ( count( $this->errors ) > 0 ) {
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$this->display_errors();
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} else {
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update_option( $this->plugin_id . $this->id . '_settings', $this->sanitized_fields );
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}
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}
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/**
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* Display admin error messages.
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*
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* @since 1.0.0
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*/
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function display_errors() {
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// TO DO - Generate errors HTML.
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} // End display_errors()
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/**
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* Initialise Gateway Settings
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*
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* Store all settings in a single database entry
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* and make sure the $settings array is either the default
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* or the settings stored in the database.
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*
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* @since 1.0.0
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* @uses get_option(), add_option()
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*/
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function init_settings () {
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if ( ! is_array( $this->settings ) ) { return; }
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$settings = array();
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$existing_settings = get_option( $this->plugin_id . $this->id . '_settings' );
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$defaults = array();
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foreach ( $this->form_fields as $k => $v ) {
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if ( isset( $v['default'] ) ) {
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$defaults[$k] = $v['default'];
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} else {
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$defaults[$k] = '';
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}
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}
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if ( ! $existing_settings ) {
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$existing_settings = $defaults;
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} else {
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// Prevent "undefined index" errors.
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foreach ( $existing_settings as $k => $v ) {
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if ( ! isset( $existing_settings[$k] ) ) {
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$existing_settings[$k] = $v;
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}
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}
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}
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$this->settings = $existing_settings;
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if ( isset( $this->settings['enabled'] ) && ( $this->settings['enabled'] == 'yes' ) ) { $this->enabled = 'yes'; }
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} // End init_settings()
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/**
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* Generate Settings HTML.
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*
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* Generate the HTML for the fields on the "settings" screen.
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*
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* @since 1.0.0
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* @uses method_exists()
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*/
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function generate_settings_html () {
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$html = '';
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foreach ( $this->form_fields as $k => $v ) {
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if ( ! isset( $v['type'] ) || ( $v['type'] == '' ) ) { $v['type'] == 'text'; } // Default to "text" field type.
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if ( method_exists( $this, 'generate_' . $v['type'] . '_html' ) ) {
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$html .= $this->{'generate_' . $v['type'] . '_html'}( $k, $v );
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}
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}
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echo $html;
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} // End generate_settings_html()
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/**
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* Generate Text Input HTML.
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*
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* @since 1.0.0
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* @return $html string
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*/
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function generate_text_html ( $key, $data ) {
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$html = '';
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if ( isset( $data['title'] ) && $data['title'] != '' ) { $title = $data['title']; }
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$html .= '<tr valign="top">' . "\n";
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$html .= '<th scope="row" class="titledesc">' . $title . '</th>' . "\n";
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$html .= '<td class="forminp">' . "\n";
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$html .= '<fieldset><legend class="screen-reader-text"><span>' . $title . '</span></legend>' . "\n";
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$html .= '<label for="' . $this->plugin_id . $this->id . '_' . $key . '">';
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$html .= '<input class="input-text wide-input" type="text" name="' . $this->plugin_id . $this->id . '_' . $key . '" id="' . $this->plugin_id . $this->id . '_' . $key . '" style="min-width:50px;" value="' . $this->settings[$key] . '" />';
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if ( isset( $data['description'] ) && $data['description'] != '' ) { $html .= '<span class="description">' . $data['description'] . '</span>' . "\n"; }
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$html .= '</fieldset>';
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$html .= '</td>' . "\n";
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$html .= '</tr>' . "\n";
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return $html;
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} // End generate_checkbox_html()
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/**
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* Generate Checkbox HTML.
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*
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* @since 1.0.0
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* @return $html string
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*/
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function generate_checkbox_html ( $key, $data ) {
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$html = '';
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if ( isset( $data['title'] ) && $data['title'] != '' ) { $title = $data['title']; }
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$html .= '<tr valign="top">' . "\n";
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$html .= '<th scope="row" class="titledesc">' . $title . '</th>' . "\n";
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$html .= '<td class="forminp">' . "\n";
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$html .= '<fieldset><legend class="screen-reader-text"><span>' . $title . '</span></legend>' . "\n";
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$html .= '<label for="' . $this->plugin_id . $this->id . '_' . $key . '">';
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$html .= '<input name="' . $this->plugin_id . $this->id . '_' . $key . '" id="' . $this->plugin_id . $this->id . '_' . $key . '" type="checkbox" value="1" ' . checked( $this->settings[$key], 'yes', false ) . ' />' . $title . '</label><br />' . "\n";
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if ( isset( $data['description'] ) && $data['description'] != '' ) { $html .= '<span class="description">' . $data['description'] . '</span>' . "\n"; }
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$html .= '</fieldset>';
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$html .= '</td>' . "\n";
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$html .= '</tr>' . "\n";
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return $html;
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} // End generate_checkbox_html()
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/**
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* Validate Settings Field Data.
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*
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* Validate the data on the "Settings" form.
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*
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* @since 1.0.0
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* @uses method_exists()
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*/
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function validate_settings_fields () {
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// TO DO: NONCE SECURITY CHECK
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foreach ( $this->form_fields as $k => $v ) {
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if ( ! isset( $v['type'] ) || ( $v['type'] == '' ) ) { $v['type'] == 'text'; } // Default to "text" field type.
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if ( method_exists( $this, 'validate_' . $v['type'] . '_field' ) ) {
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$field = $this->{'validate_' . $v['type'] . '_field'}( $k );
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$this->sanitized_fields[$k] = $field;
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} else {
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$this->sanitized_fields[$k] = $this->settings[$k];
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}
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}
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} // End validate_settings_fields()
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/**
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* Validate Checkbox Field.
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*
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* If not set, return "no", otherwise return "yes".
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*
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* @since 1.0.0
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* @return $status string
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*/
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function validate_checkbox_field ( $key ) {
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// TO DO: NONCE SECURITY CHECK
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$status = 'no';
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if ( isset( $_POST[$this->plugin_id . $this->id . '_' . $key] ) && ( 1 == $_POST[$this->plugin_id . $this->id . '_' . $key] ) ) {
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$status = 'yes';
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}
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return $status;
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} // End validate_checkbox_field()
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/**
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* Validate Text Field.
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*
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* Make sure the data is escaped correctly, etc.
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*
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* @since 1.0.0
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* @return $text string
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*/
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function validate_text_field ( $key ) {
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// TO DO: NONCE SECURITY CHECK
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$text = $this->settings[$key];
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if ( isset( $_POST[$this->plugin_id . $this->id . '_' . $key] ) && ( '' != $_POST[$this->plugin_id . $this->id . '_' . $key] ) ) {
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$text = esc_attr( woocommerce_clean( $_POST[$this->plugin_id . $this->id . '_' . $key] ) );
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}
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return $text;
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} // End validate_text_field()
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}
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