Checking for non-required attributes

[gsam]

I've seen a few post on how to count the attributes of a product, such as:

<mvt:assign name="g.attribute_count" value="miva_array_elements( l.settings:attributes )" />
<mvt:if expr="g.attribute_count EQ 0">    
There are no attributes
<mvt:else>    
There are attributes
</mvt:if>

Is there a way to count only non-required attributes? In fact all I really need to know is if there is at least 1 non-required attribute.

If I changed the above code to: value="miva_array_elements( l.settings:attributes:required )" I think it would still return a count since this variable exist for all attributes and is true or false.

[Bruce - PhosphorMedia]

don't know of the top of my head if that function can take an expression or if l.settings:attribute:required is the correct value, but try miva_array_elements(l.settings:attribute:required EQ 1)

[Kent Multer]

The expression l.settings:attributes:required will not return any value; that's not how Miva Script works. l.settings:attributes is an array; it has numbered elements, each of which holds the data for one attribute. Miva Script doesn't have a way to directly read or count the :required values of all the array elements. To count the number of required or non-required attributes, or to check whether there are any, you'll need to write a small mvt:foreach loop that goes through all the attributes, and checks the :required element of each one.

HTH --

[SidFeyDesigns]

This may be a dead thread but I thought this would be helpful to the original poster or anyone else who stumbles upon the thread.

I needed something similar as the original poster but based on if required attributes existed so I will include examples for both.

Both the code examples are based on a variable assigned and counted with a small foreach loop as Kent suggested.

Code to check if Required Attributes exist

<mvt:assign name="g.reqpos" value="1" />
<mvt:foreach iterator="attribute" array="attributes">
        <mvt:if expr="l.settings:attribute:required">
                <mvt:assign name="g.reqpos" value="g.reqpos + 1 " />
                <mvt:foreachstop />
        </mvt:if>
</mvt:foreach>
<mvt:if expr="g.reqpos GT 1">
        CONTENT IF REQUIRED ATTRIBUTE EXISTS
<mvt:else>
        other content (this content and the <mvt:else> are not required if only showing content based on required attributes existing)
</mvt:if>

Code to check if Non-Required Attributes exist

<mvt:assign name="g.nonreqpos" value="1" />
<mvt:foreach iterator="attribute" array="attributes">
        <mvt:if expr="l.settings:attribute:required">
                <mvt:comment> ========== Important to keep this blank and free of code or text ========== </mvt:comment>
        <mvt:else>
                <mvt:assign name="g.nonreqpos" value="g.nonreqpos + 1 " />
                <mvt:foreachstop />
        </mvt:if>
</mvt:foreach>
<mvt:if expr="g.nonreqpos GT 1">
        CONTENT IF NON-REQUIRED ATTRIBUTE EXISTS
<mvt:else>
        other content (this content and the <mvt:else> are not required if only showing content based on non-required attributes existing)
</mvt:if>

Hope this is helpful.

[SidFeyDesigns]

It would be great if there was a way to incorporate a while loop that could exit the loop after finding the first required or non-required attribute.

Not sure if that is possible but we have products with a lot of attributes and it may be more efficient that way.

[Kent Multer]

The template language includes <mvt:foreachstop>, which can be used to break out of a loop.

[SidFeyDesigns]

The template language includes <mvt:foreachstop>, which can be used to break out of a loop.

Ah ha. Did not know that one existed.

Edited the code in the post.

Thanks Kent!