Tv for image

144 Posts

aiphess Reply #1, 17 years, 6 months ago

hi

i’ve this in my template :

<img class="img_right" src="[*image*]" alt=""/>

but i want to have the choice to insert the image or not in my page,because if i’dont choose an image i’ve the css border displayed alltime...
so how can i do a tv which i can choose to insert code or not ? or perhaps make a chunk...

thx

AipHesBlOg
Serveur Local Linux Ubuntu - Apache 2.2.9 - Php 5.2.6 - MySQL 5.0.67
---------------------------------------------------------------
French webdesigner

69 Posts

markhurd Reply #2, 17 years, 6 months ago

You can put your existing code into a chunk, and insert something like this into your template:

[+phx:if=`[*image*]`:isnt=``:then=`{ {chunkName} }`+]

This will check if the image TV has a value, and include the chunk if it does. There may be a more efficient way of writing this but I’m still learning PHX.

4,205 Posts

dev_cw Reply #3, 17 years, 6 months ago

If you dont want to use PHx then build a snippet to check it the TV has a value or not.

<?php
$tv = isset($tv) ? $tv : "defaultTvNameHere"; 
$val = $modx->getTemplateVarOutput($tv);
if($val != ''){
    $output = '<img class="img_right" src="'.$tv.'" alt=""/>';
    return $output;
}
?>

You can set the default tv and use it like [[snippetName]] or you can assign the tv in the call [[snippetname? &tv=`tvName`]]

[font=Verdana]Shane Sponagle | [wiki] Snippet Call Anatomy | MODx Developer Blog | [nettuts] Working With a Content Management Framework: MODx

Something is happening here, but you don't know what it is.
Do you, Mr. Jones? - [bob dylan]

144 Posts

aiphess Reply #4, 17 years, 6 months ago

i’m learning php so i’ll take the second solution..but can i add some php to have a alt and title balises dynamically with the image name ?
what’s i’ve done:

<div id="contenu_txt">
			[[imageTest]]
			
			
			[*#content*]
			
			
			</div>

whith the snippet [[imageTest]] :

<?php
$tv = isset($tv) ? $tv : "[*image*]"; 
$val = $modx->getTemplateVarOutput($tv);
if($val != ''){
    $output = '<img class="img_right" src="'.$tv.'" alt=""/>';
    return $output;
}
?>

i’ve not any image now ! why ?

AipHesBlOg
Serveur Local Linux Ubuntu - Apache 2.2.9 - Php 5.2.6 - MySQL 5.0.67
---------------------------------------------------------------
French webdesigner

☆ A M B ☆
24,524 Posts

sottwell Reply #5, 17 years, 6 months ago

Don’t confuse the TV name with the TV tags. The tags are only for use in HTML code. In a snippet, just use the TV’s name without the tags.

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144 Posts

aiphess Reply #6, 17 years, 6 months ago

i’ve tried this too :

<?php
$tv = isset($tv) ? $tv : "image"; 
$val = $modx->getTemplateVarOutput($tv);
if($val != ''){
    $output = '<img class="img_right" src="'.$tv.'" alt=""/>';
    return $output;
}
?>

and is not work...i’dont understand what is the problem so...

AipHesBlOg
Serveur Local Linux Ubuntu - Apache 2.2.9 - Php 5.2.6 - MySQL 5.0.67
---------------------------------------------------------------
French webdesigner

4,205 Posts

dev_cw Reply #7, 17 years, 6 months ago

The snippet is not working because I am an idiot grin

There are some errors in it that are careless. Here is a working version (tested):

<?php
$tv = isset($tv) ? $tv : "sbImage"; 
$tvVal = $modx->getTemplateVarOutput($tv);
if($tvVal != ''){
    $output = '<img class="img_right" src="'.$tvVal[$tv].'" alt=""/>';
    return $output;
} 
?>

The errors:
1) I had the $tv var as the TV value and it was supposed to be the $val (I changed the $val name to $tvVal to make it more clear).
2) $modx->getTemplateVarOutput($tv) returns an array so you need to access the value with array syntax, so rather than using the simple variable mane $tvVal we need to append the array key, which is the name of the TV $tvVal[$tv]

You can add as many parameters as you want to add title/alt data. To simply use the path you can just add title="’.$tvVal[$tv].’" to the output string. You can use some php to isolate the file name using the basename() php function. Here is an example:

<?php
$tv = isset($tv) ? $tv : "sbImage"; 
$tvVal = $modx->getTemplateVarOutput($tv);
if($tvVal != ''){
    $fileName = basename($tvVal[$tv]);
    $output = '<img class="img_right" src="'.$tvVal[$tv].'" alt="'.$fileName.'"/>';
    return $output;
} 
?>

[font=Verdana]Shane Sponagle | [wiki] Snippet Call Anatomy | MODx Developer Blog | [nettuts] Working With a Content Management Framework: MODx

Something is happening here, but you don't know what it is.
Do you, Mr. Jones? - [bob dylan]

144 Posts

aiphess Reply #8, 17 years, 6 months ago

it’s working now with an image but not if the tv is empty...i’ve my css border empty... sad

AipHesBlOg
Serveur Local Linux Ubuntu - Apache 2.2.9 - Php 5.2.6 - MySQL 5.0.67
---------------------------------------------------------------
French webdesigner

107 Posts

Kleist Reply #9, 17 years, 5 months ago

Does this fix it? (adding [$tv] in if(...))

<?php
$tv = isset($tv) ? $tv : "sbImage"; 
$tvVal = $modx->getTemplateVarOutput($tv);
if($tvVal[$tv] != ''){
    $output = '<img class="img_right" src="'.$tvVal[$tv].'" alt=""/>';
    return $output;
} 
?>

MODx snippet-glossary 101:
Ditto = Content Lister -- Wayfinder == Menu Builder -- Jot = Comment Control