我有一个内容类型'发票'
我想添加一个字段invoice_number
,例如:ABC2012001
ABC:前缀,
2012:每年都有变化,
001:发票的nr(每年重置)
该领域是自动增量。
我该怎么做?是否可以不编程或者我必须使用THE钩子函数?
答案 0 :(得分:0)
您可以使用node_presave挂钩使用自定义模块执行此操作。用户只在“invoice_number”字段中输入前缀值。在节点保存到数据库之前,您的挂钩执行以下操作:
如果节点属于'invoice'类型且尚未保存'nid == 0'
就像这样:
<?php
function mymodule_node_presave($node){
if (($node->type == 'invoice') && ($node->nid == 0)) { //node has not been saved
//get the current year
$this_year = date('Y');
if ($count = variable_get('invoice_count_'.$this_year,0)){
//have the invoice number
}else{
//get the number of invoices created this year from DB
$count_query = "SELECT COUNT(DISTINCT nid)) FROM {node} WHERE type = :type AND FROM_UNIXTIME(created,'%Y') = :year";
$count = db_query($count_query,array(':type'=>'invoice',':year'=>$this_year))->fetchField();
}
$invoice_count = $count;
//append number with 0's?
$invoice_count = str_repeat('0',(3-strlen($invoice_count))).$invoice_count;
//alter the field value and append the year.number
$node->field_invoice_number['und'][0]['value'].=$this_year.$invoice_count;
//save the increment
variable_set('invoice_count_'.$this_year,($count+1));
}
}