hice un codigo que me crea el formulario pero a la hora de enviar.. no logro recojer los datos con variable_get();
espero que me puedan ayudar.
Código PHP:
<?php
function calculadora_menu() {
$items = array();
$items['calculadora'] = array(
'title' => 'Calculadora',
'page callback' => 'calculadora_page',
'page arguments' => array('form'),
'access arguments' => array('administer site configuration'),
'type' => MENU_CALLBACK,
);
return $items;
}
/**
* Display help and module information
* @param path which path of the site we're displaying help
* @param arg array that holds the current path as would be returned from arg() function
* @return help text for the path
*/
function calculadora_help($path, $arg) {
$output = '';
switch ($path) {
case "admin/help#calculadora":
$output = '<p>'. t("Muestra un bloque con una calculadora") .'</p>';
break;
}
return $output;
}
function calculadora_perm() {
return array('access calculadora content', 'administer calculadora');
}
function calculadora_block($op = 'list', $delta = 0, $edit = array()) {
// The $op parameter determines what piece of information is being requested.
switch ($op) {
case 'list':
$blocks[0] = array(
'info' => t('Permite hacer calculos.'),
// we definitely do not want this cached
'cache' => BLOCK_NO_CACHE,
);
return $blocks;
case 'configure':
$form = array();
if ($delta == 0) {
// All we need to provide is a text field, Drupal will take care of
// the other block configuration options and the save button.
$form['chatblock_number_messages'] = array(
'#type' => 'textfield',
'#title' => t('Number of messages'),
'#size' => 60,
'#description' => t('The number of messages to show in this block.'),
'#default_value' => variable_get('chatblock_number_messages', 100),
);
}
return $form;
case 'save':
if ($delta == 0) {
// Have Drupal save the string to the database.
variable_set('chatblock_number_messages', $edit['chatblock_number_messages']);
}
return;
case 'view':
$form = array();
// All we need to provide is a text field, Drupal will take care of
// the other block configuration options and the save button.
$form['chatblock_number_messages'] = array(
'#type' => 'textfield',
'#title' => t('Number of messages'),
'#size' => 60,
'#description' => t('The number of messages to show in this block.'),
'#default_value' => variable_get('chatblock_number_messages', 100),
);
// If $op is "view", then we need to generate the block for display
// purposes. The $delta parameter tells us which block is being requested.
$block['subject'] = t('Chat');
$block['content'] = t('Chat');
return $block;
}
}
function calculadora_form() {
// Access log settings:
$options = array('1' => t('Enabled'), '0' => t('Disabled'));
$form['access'] = array(
'#type' => 'fieldset',
'#title' => t('Calculadora'),
'#tree' => TRUE,
);
$form['access']['numero1'] = array(
'#type' => 'textfield',
'#title' => t('Numero 1'),
'#size' => 30,
'#maxlength' => 64,
'#description' => t('Enter the name for this group of settings'),
);
$form['access']['numero2'] = array(
'#type' => 'textfield',
'#title' => t('Numero 2'),
'#size' => 30,
'#maxlength' => 64,
'#default_value' => variable_get('numero2', 0),
'#description' => t('Enter the name for this group of settings'),
);
// Description
$form['details'] = array(
'#type' => 'fieldset',
'#title' => t('Mostrar/ocultar Operacion'),
'#collapsible' => TRUE,
'#collapsed' => TRUE,
);
$form['operacion'] = array(
'#type' => 'radios',
'#title' => t('Log'),
'#default_value' => variable_get('log', 0),
'#options' => array(t('Sumar'), t('Restar'), t('Multiplicar'), t('Dividir')),
'#description' => t('Selecciona la Operacion.'),
);
$form['submit'] = array('#type' => 'submit', '#value' => t('Save'));
return $form;
}
function calculadora_page() {
$limitnum = variable_get('operacion', 3);
$tt = drupal_get_form('calculadora_form');
$tt .= $limitnum;
return $tt;
} 
