drupal7 自定义网站变量

当页面的某个部分不太适合做成node，而又需要数据库存储必要的数据，就可以做到系统配置里

//1.生成menu
//这个menu会自动分配到 configration->system 下面
$items['admin/config/system/flowus'] = array(
		'title' => 'Flow Us setting',
		'description' => 'Flow Us setting',
		'page callback' => 'drupal_get_form',
		'page arguments' => array('keats_flow_us'),
		'access arguments' => array('administer site configuration'),
		'type' => MENU_NORMAL_ITEM,
	);

2. 生成相应的form

function keats_flow_us(){
	$form['keats_flow_us_facebook'] = array(
		'#type' => 'textfield',
		'#title' => t('Facebook'),
		'#default_value' => variable_get('keats_flow_us_facebook', ''),
		'#description' => t('Facebook Link'),
	);
	
	$form['keats_flow_us_youtube'] = array(
		'#type' => 'textfield',
		'#title' => t('YouTobe'),
		'#default_value' => variable_get('keats_flow_us_youtube', ''),
		'#description' => t('YouTobe Link'),
	);
	
	$form['keats_flow_us_twitter'] = array(
		'#type' => 'textfield',
		'#title' => t('Twitter'),
		'#default_value' => variable_get('keats_flow_us_twitter', ''),
		'#description' => t('Twitter Link'),
	);
	
	$form['keats_flow_us_linkedin'] = array(
		'#type' => 'textfield',
		'#title' => t('Linkedin'),
		'#default_value' => variable_get('keats_flow_us_linkedin', ''),
		'#description' => t('Linkedin Link'),
	);
	
	$form['#submit'][] = 'keats_flow_us_submit';
        //如果直接返回$form, 则不会有保存按钮，需要drupal初始化这个form
	return system_settings_form($form);
}

3. 保存配置
function keats_flow_us_submit($form, $form_state) {
	variable_set('keats_flow_us_facebook', $form_state['input']['keats_flow_us_facebook']);
	variable_set('keats_flow_us_youtube',  $form_state['input']['keats_flow_us_youtube']);
	variable_set('keats_flow_us_twitter',  $form_state['input']['keats_flow_us_twitter']);
	variable_set('keats_flow_us_linkedin', $form_state['input']['keats_flow_us_linkedin']);
}

//4.调用
$links['fb'] = variable_get('keats_flow_us_facebook', '');
			$links['yt'] = variable_get('keats_flow_us_youtube', '');
			$links['tw'] = variable_get('keats_flow_us_twitter', '');
			$links['in'] = variable_get('keats_flow_us_linkedin', '');