MenuCaching snippet for MODX Revolution

the Idea of a snippet is very simple. You often need to do on the website menu, which remains unchanged on all pages. Only change the CSS class of the active menu item. Why do we need on each page to do queries to the database and generate menu if you only want to change CSS class? But if it's a big menu with drop-down sub-levels, generation may spend too many resources. Snippet menuCaching isolates the server from this extra work.



Description of the snippet

The snippet allows you to generate menus for each page separately only in order to put a CSS class on active menu item.
The menu is generated only once for the entire site, but the active points are marked.

Example usage


the 
[[menuCaching?
&snippetToCache=`Wayfinder`
&cacheSuffix=`top_menu`
&contexts=`web`
&startId=`0`
&level=`1`
&hereClass=`active`
&rowTpl=`@CODE: < li class="[[+wf.classnames]] {{active[[+id]]}}"><a href="[[+wf.link]]" > [[+wf.linktext]]</a></li>`
]]


It is recommended to create a set of parameters (for example, "top_menu") to, again, to save the parser from MODX extra work:

the 
[[menuCaching@top_menu]]


What's going on here, I think you already guessed. In the cache menu is stored like this:

the 
<ul>
<li class="first {{active1}}"><a href="">Item 1</a></li>
<li class=" {{active2}}"><a href="">Item 2</a></li>
<li class="last {{active3}}"><a href="">menu Item 3</a></li>
</ul>


It only remains to replace the tag type {{active1}} on the class of the active element, and the other to remove, which makes the snippet. Set to the snippet comes with a plugin that clears the cache when you click the "Update site" in the admin.

An important parameter of the snippet cacheSuffix. The example creates a cache for the whole site, but you can create a cache for separate parent categories, and within categories, everything will be taken from the cache:

the 
&cacheSuffix=`[[*parent]]`


This snippet can be used not only for menu, and for example for different sliders, etc. blocks that do not change on different pages.

Snippet menuCaching in MODX repository: http://modx.com/extras/package/menucaching

Added

The results of testing with a large menu. Calls both snippets uncached, i.e. [[!snippet]] (for testing, in reality, it is necessary to cache).

Wayfinder
The first call to any of the pages where there is a menu: 2.5815 sec.
The transition to any other page with the same menu: 2.4566 sec. (i.e. the vaunted cacheResults doesn't help)
Updated the page: 1.0021 seconds. (only in this case, cacheResults saves)

The same Wayfinder, using menuCaching
The first call to any of the pages where there is a menu: 2.4842 seconds. (in error, of course, there is no difference)
The transition to any other page with the same menu: 0.7008 seconds. (the result is the same, but the time is different)
Updated the page: 0.4187 sec.
Article based on information from habrahabr.ru

Комментарии

Отправить комментарий

Популярные сообщения из этого блога

Integration of PostgreSQL with MS SQL Server for those who want faster and deeper

Изображение
Recently habré was already published integration PostgreSQL and MSSQL. But, items there is categorically not enough. Therefore, the objectives of this publication are the following: the the to broaden and deepen publicly available information about FDW for MSSQL-called tds_fdw to tell the difference in major versions and describe basic compatibility issues; the to talk about the possibilities of optimization of queries that use the foreign table; the to address the subject of caching external data in a materialized view; the to say a few words about the exotic ways to integrate PostgreSQL and MSSQL. the Installing and configuring TDS FDW The guys from PostgresPro already sufficiently said about this process, I will not repeat. Will leave a few links to the official PostgreSQL documentation and examples from tds_fdw: the the creating an extension (extension) in PG: off.dokumentacija ; the server: off.documentation , example of tds_fdw ; the creating
Далее...

Parse URL in Zend Framework 2

Objective: the Have a method to disassemble the components of the string containing the URL. The string can contain both absolute and relative URLS and both these options should be correctly parsed. the And in the drain, let's say the "wrong" format absolute links without "http://". Further in the text links to the "wrong" format will be called partial absolute references . the Implement support for the "RF" domain. the Example: site.ru/page.php /page.php site.ru/page.php the scheme http the host site.ru site.ru the path page.php page.php page.php Implementation of paragraphs 1 and 2 of our problem In this we should help the class Zend\Uri\Http . He has we need methods parse($uri) , getHost() , getPath() , etc. But! When we parse the URL and type " site.ru/page.php " (without the " http:// ") getHost() will return an empty string and getPath()
Далее...

Custom database queries in MODx Revolution

This topic will certainly be useful for those who have quite a lot of projects on MODx Revolution, as with the usual sites of business cards is enough and the standard working methods of a La $modx- > getObject() , $modx->getCollection() , etc., and these methods are inherently not just a job database, but also with the objects of MODx. When working with large projects methods a La $modx- > getCollection() for us is not the best solution for two reasons: 1. The overexpenditures. These methods are not just getting data from DB, but also create instance of the retrieved objects. In this case, getting information about 10000 documents, we get 10000 objects of modResource that it is not very cool. 2. The task is complicated by the count of records. In addition to the direct difficulties of counting even at the query level, even if you get 10 records of the same document (for example), MODx will return as a result only one object modResource. Although often that will su
Далее...