Number of multiTv field value in the parent

samvaarv

I am having difficulties in finding the solution.
I have made multiTv for comments in a blogPost. Now I want to count those fields and output the total comments to the parent i.e Blog for each post.
like:
Blog
--Blog post1 -- Comments is 3
--Blog post2 -- Comments is 10
so, in Blog, I want to show those blog post using doclister along with the number of comments in each blog post

mplavala

This is not too hard, but a bit involved. Inside the DocLister template that displays the Blog postN entries, you can call multiTV - you have the ID of Blog postN, so justgive that to multiTV. Then you can make a custom multiTV template, which will only has [+rows.total+] as the outerTpl, which gives the number of displayable rows (see the docs here). This way you get the total number of comments for each blog post.

Please note: this will cause repeated queries to the database. Consider displaying only limited number of Blog posts in the Doc Lister call on Blog and do cache the snippet calls if possible (i.e., use [[DocLister ... ]] instead of [!DocLister ...!]).

samvaarv

mplavala Thanks for the reply, but can you give an example of how to call a multiTv inside a DocLister?
Like I have &parents=[*id*] and &tpl=BlogCards in Doclister And in BlogCards chunk I have that Comments integer value to be shown like this

<a href="[+url+]" class="blog-list__item">
<div class="blog-list__thumbnail"><img src="[+tv.page-thumb+]" alt="[+pagetitle+]" /></div>
<div class="blog-list__info">
  <h3>[+pagetitle+]</h3>
  <span><i class="far fa-calendar-check"></i> [+date+]</span>
  <span><i class="far fa-user"></i> By [+tv.author-name+]</span>
  <span><i class="far fa-comment-alt"></i> [+row.total+] comments</span>
  <p>[[Truncate? &what=`[+content+]` &len=`200`]]</p>
</div>
</a>

mplavala

samvaarv rows.total is a placeholder of multiTV, so you have to call multiTV inside BlogCards chunks snippet to get that value. I tested the following and it works:

<a href="[+url+]" class="blog-listitem">
<div class="blog-listthumbnail"><img src="[+tv.page-thumb+]" alt="[+pagetitle+]" ></div>
<div class="blog-list__info">
<h3>[+pagetitle+]</h3>
<span ><i class="far fa-calendar-check"></i> [+date+]</span>
<span><i class="far fa-user"></i> By [+tv.author-name+] </span>
[[multiTV? &tvName='XXX' &docid='[+id+]' &display='all' &outerTpl='counter']]
<p>[[Truncate? &what=`[+content+]` &len=`200`]]</p>
</div>
</a>

where counter is the following chunk:

<span><i class="far fa-comment-alt"></i>[+rows.total+] comments</span>

What happens here is that if there is at least one comment, then the multiTV snippet outputs the counter chunk, which just shows the number of comments. If there are no comments, then the whole chunk is not displayed. Other option is to display 0 comments when there are no comments, for this you want to move the span out of counter chunk and play around with multiTV parameters so that the number 0 is displayed if the TV is empty.

Let me know if this helps.

nick0

mplavala What happens here is that if there is at least one comment, then the multiTV snippet outputs the counter chunk, which just shows the number of comments.

Very clever approach mplavala. Nice one 😄.

samvaarv

mplavala Thank you very much for this, you totally saved my life, Have been stuck here for days

fourroses666

Is Truncate a custom snippet? I was wondering how to show only a couple of characters of [+content+] in DocLister.

modxuser

fourroses666

Marc, you can use Doclisters built in PHX

Snippet: phx:word_limit

<?php
$retval = $output;
      $array = explode(" ", $output);
      if (count($array)<=$options)
      {
      $retval = $output;
      }
      else
      {
      array_splice($array,$options);
      $retval = implode(" ", $array);
      }
return $retval;

Chunk output

[+content:word_limit=`60`+]

fourroses666

Thanks!