Drupal View过滤器中的OR运算符

Question

我需要在Drupal View中的某些过滤器之间实现OR运算符.默认情况下,Drupal AND的每个过滤器都在一起.

通过使用

hook_views_query_alter(&$view, &$query)

我可以访问查询(var $ query),我可以更改:

$query->where[0]['type'] 

'或',或

$query->group_operator 

'OR'

但问题是,我到处都不需要OR.我已经尝试将它们分别更改为OR,并且它不会产生所需的结果.

它似乎改变了这些值,把OR放在任何地方,而我需要=>(滤波器1和滤波器2)或(滤波器3),所以只需1或.

我可以检查View的查询,复制它,修改它,然后通过db_query运行它,但那只是脏的..

有什么建议 ？

Thx提前.

Answer 1

如果你正在使用Views 3/Drupal 7并寻找这个问题的答案,它会直接进入Views.如果在过滤器旁边显示"添加",请点击下拉列表,然后点击"和/或重新排列".从那里应该是显而易见的.

Answer 2

不幸的是,这仍然是Views2中缺少的功能.它早已被要求并且很久以前得到了承诺,但似乎是一项棘手的工作,现在计划用于Views3.

在此期间,您可以尝试该线程中提到的Views Or模块.截至今天,它仍然处于开发状态,但似乎是积极维护并且问题队列看起来并不坏,所以你可能想尝试一下.

Answer 3

如果你想用 view_query_alter 钩子来做，你应该使用 $query->add_where() ，你可以指定它是 AND 还是 OR。来自views/include/query.inc

  /**
   * Add a simple WHERE clause to the query. The caller is responsible for
   * ensuring that all fields are fully qualified (TABLE.FIELD) and that
   * the table already exists in the query.
   *
   * @param $group
   *   The WHERE group to add these to; groups are used to create AND/OR
   *   sections. Groups cannot be nested. Use 0 as the default group.
   *   If the group does not yet exist it will be created as an AND group.
   * @param $clause
   *   The actual clause to add. When adding a where clause it is important
   *   that all tables are addressed by the alias provided by add_table or
   *   ensure_table and that all fields are addressed by their alias wehn
   *   possible. Please use %d and %s for arguments.
   * @param ...
   *   A number of arguments as used in db_query(). May be many args or one
   *   array full of args.
   */
  function add_where($group, $clause)