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Hiding a block with no data

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By: TomH
Date: 2006-07-11
Time: 19:18

Hiding a block with no data

Hi
Having trouble hiding a block when db query returns no rows
PHP
$sql3 = "select * from index_page WHERE module='block' AND position='top' ";
$query = $db->get_results($sql3); // do the basic query using SQL_CALC_FOUND_ROWS trick
$TBS->MergeBlock('blk_top', $db);

HTML
<tr>
<td>
Lots of other stuff
</td>
<!--  RIGHT BLOCKS  -- none or many db entries -->
<rightblocks>   
<td rowspan=99 valign=top width="120">
              <table class="rightblocks" width=120 bgcolor="#E4E4E4" cellspacing="0" cellpadding="2" border="1">
                <tr><th>[blk_right.descript;block=table]</th></tr>
                <tr>
                <td bgcolor="#F0F0F0">[onshow;file=[blk_right.url];nodata; magnet=((td))] </td>
                </tr>
                </table>
              </td>
</rightblocks>           
</tr>

Result:
<rightblocks>   
<td rowspan=99 valign=top width="120">
             
              </td>
</rightblocks>

As you can see, the TABLE is gone bit the TD cell remains

Any ideas
By: Skrol29
Date: 2006-07-11
Time: 19:29

Re: Hiding a block with no data

It looks normal to me. I don't know when "blk_right" is merged, but it is defined on <table>.

By the way: parameter "nodata" defined on the [onshow] tag is ignored.
By: TomH
Date: 2006-07-12
Time: 00:41

Re: Hiding a block with no data

When I had tried going to the second TD tag outside of the blk def, like this...
<rightblocks>
<td rowspan=99 valign=top width="120">
     <table class="rightblocks" width=120 bgcolor="#E4E4E4" cellspacing="0" cellpadding="2" border="1">
       <tr><th>[blk_right.descript;block=((td));noerr]</th></tr>
    <tr>
       <td bgcolor="#F0F0F0">[onshow;file=[blk_right.url];nodata; magnet=((td))] </td>
    </tr>
    </table>
     </td>
</rightblocks>
I get the error...
TinyButStrong Error in block's definition [blk_right.descript...] : tag <((td))> or </((td))> is not found.
Even though I get this error -- the correct HTML is deleted from the template --but the werror msg prevents me from doing this.

More ideas?
By: Skrol29
Date: 2006-07-12
Time: 09:52

Re: Hiding a block with no data

"block=((td))" works for TBS 3 only. Could you check you TBS version?
If it's 2.x, it cannot work with this syntax, you have to use the old parameter "encaps".
By: TomH
Date: 2006-07-12
Time: 13:02

Re: Hiding a block with no data

Yeah,
that's right, am using 3.1.1
Got it working by removing the first "block=((td))" which was breaking the code.
Now have it working this way...
<rightblocks>   
<td   bgcolor="#F7F7F7" rowspan=99 valign=top width="120">
              <table class="rightblocks" width=120 bgcolor="#E4E4E4" cellspacing="0" cellpadding="2" border="1">
                <tr><th>[blk_right.descript;noerr]</th></tr>
                <tr>
                <td bgcolor="#F0F0F0">[onshow;file=[blk_right.url]; magnet=((td));noerr] </td>
                </tr>
                </table>
              </td>
</rightblocks>
By: Skrol29
Date: 2006-07-12
Time: 14:13

Re: Hiding a block with no data

Hello TomH,

I can reproduce your error on the previsous snippet, the one with "block=((td))".
The TBS error message was not describing the problem correctly. It fact, TBS cannot found the second level of <td> because your TBS tag is not ebedded into two level of <td>, but into <th> and <td>.
So your block definition should simply be : "block=td".
By: TomH
Date: 2006-07-12
Time: 17:13

Re: Hiding a block with no data

Thanks  for that. Sorry to have been a bother.

The only gain is that you continue to teach us so much about TBS with your careful answers to problems that come from our careless coding errors.