如何在Algolia Search页面结果的摘录中显示我的Wordpress自定义字段属性？

Question

I'm currently using Algolia's Search plugin within Worpdress. I've managed to push some custom fields and their values to custom attributes within Algolia. Now, I'm trying to include a custom attribute named 'program_description' in my search results.

By default, the search is only returning the value of the 'post_title' and 'content' attributes. I'm interested in replacing the 'content' attribute output with with my custom attribute's output('program_description').

I thought I would simply modify the instantsearch.php template by adding 'program_description' to the attributes array like so:

<div class="ais-hits--content">
    <h3 itemprop="name headline"><a href="{{ data.permalink }}" title="{{ data.post_title }}" itemprop="url">{{{ data._highlightResult.post_title.value }}}</a></h3>
    <div class="ais-hits--tags">
        <# for (var index in data.taxonomies.post_tag) { #>
        <span class="ais-hits--tag">{{{ data._highlightResult.taxonomies.post_tag[index].value }}}</span>
        <# } #>
    </div>
    <div class="excerpt">
        <p>
            <#
            var attributes = ['program_description', 'content', 'title6', 'title5', 'title4', 'title3', 'title2', 'title1'];
            var attribute_name;
            var relevant_content = '';
            for ( var index in attributes ) {
                attribute_name = attributes[ index ];
                if ( data._highlightResult[ attribute_name ].matchedWords.length > 0 ) {
                    relevant_content = data._snippetResult[ attribute_name ].value;
                }
            }

            relevant_content = data._snippetResult[ attributes[ 0 ] ].value;
            #>
            {{{ relevant_content }}}
        </p>
    </div>
</div>

In doing so, none of my results are returned and I'm met with the following console error: Uncaught TypeError: Cannot read property 'matchedWords' of undefined

Any help would be greatly appreciated.

Answer 1

Cannot read property 'matchedWords' of undefined tells me that your custom parameter for attributes may not be defined in the scope of Algolia.

I would suggest initializing attributesToIndex with your custom attributes (or any attributes you'll be using)- that way you can ensure that attributesToHighlight has definitions to work with.

Check out this answer~ it might help shed light on why you're getting an undefined definition for your custom attribute while trying to access the matchedWords member of your _highlightResult object.