How do I test if image exists for a field in xslt? - image

Question

I have a form where a field is an image which is uploaded, which works fine. I now want to check to see if an image exists for that field and if not display a default no image
I have for now
<xsl:if test="fields/field_item_main_image/data/#original = ''"><span class="noimage"></span></xsl:if><xsl:copy-of select="fields/field_item_main_image/data" />
The span for no image simply provides a no image png file to be shown inplace of an image when none exists, but this is not working as the default image is not being shown, even though the field has no image assigned to it.
Looking at the source code the result is
<data></data>
What am I doing wrong?
ADDITIONAL INFO
I'd like to add more info but really not sure what you want me to add to help me... let me know what is needed and I will see if I can get that info for you to help me.
The relevant class style is
.noimage {display:block;width:100px;height:100px;background-image: url(../images/no-image-available.png);}
This is related to SobiPro a Joomla Compontent
Here is the form code
<div>
<xsl:for-each select="entry/fields/*">
<xsl:if test="( name() != 'save_button' ) and ( name() != 'cancel_button' )">
<xsl:variable name="fieldId">
<xsl:value-of select="data/*/#id" />
</xsl:variable>
<div id="{$fieldId}Container">
<xsl:attribute name="class">
<xsl:choose>
<xsl:when test="position() mod 2">spFormRowEven</xsl:when>
<xsl:otherwise>spFormRowOdd</xsl:otherwise>
</xsl:choose>
</xsl:attribute>
<xsl:if test="string-length( fee )">
<div class="spFormPaymentInfo">
<input name="{$fieldId}Payment" id="{$fieldId}Payment" value="" type="checkbox" class="SPPaymentBox" onclick="SP_ActivatePayment( this )"/>
<label for="{$fieldId}Payment">
<xsl:value-of select="fee_msg"></xsl:value-of><br/>
</label>
<div style="margin-left:20px;">
<xsl:value-of select="php:function( 'SobiPro::Txt', 'TP.PAYMENT_ADD' )" />
</div>
</div>
</xsl:if>
<div class="spFormRowLeft">
<label for="{$fieldId}">
<xsl:choose>
<xsl:when test="string-length( description )">
<xsl:variable name="desc">
<xsl:value-of select="description" />
</xsl:variable>
<xsl:variable name="label">
<xsl:value-of select="label" />
</xsl:variable>
<xsl:value-of select="php:function( 'SobiPro::Tooltip', $desc, $label )" disable-output-escaping="yes"/>
</xsl:when>
<xsl:otherwise>
<xsl:value-of select="label"/>
</xsl:otherwise>
</xsl:choose>
</label>
</div>
<div class="spFormRowRight">
<xsl:choose>
<xsl:when test="data/#escaped">
<xsl:value-of select="data" disable-output-escaping="yes"/>
</xsl:when>
<xsl:otherwise>
<xsl:copy-of select="data/*" disable-output-escaping="yes"/>
</xsl:otherwise>
</xsl:choose>
<xsl:text> </xsl:text><xsl:value-of select="#suffix"/>
</div>
</div>
</xsl:if>
</xsl:for-each>
</div>
As part of the input one of my fields is an image field, it is that field I am wanting to check to see if a user has uploaded an image to that field, if they have then show that image, if not then show a default no image.
Does any of this help?
GW

Answer 1

If the default image for that field does not change, then I would do all of this on the client side.
Take a look at this answer to do that.