search_core/Documentation/source/configuration/searching.rst

Searching

size

Defined how many search results should be fetched to be available in search result.

Example:

plugin.tx_searchcore.settings.searching.size = 50

Default is 10.

facets

Define aggregations for Elasticsearch, have a look at the official docs: https://www.elastic.co/guide/en/elasticsearch/reference/5.2/search-aggregations-bucket-terms-aggregation.html

Example:

category {
    terms {
        field = categories
    }
}

month {
    date_histogram {
        field = released
        interval = month
        format = Y-MM-01
        order {
            _time = desc
        }
    }
}

The above example will provide a facet with options for all found categories results together with a count. Also a facet for released will be provided.

filter

Define filter that should be set for all search requests.

Example:

plugin.tx_searchcore.settings.searching.filter {
    property = value
}

Also see mapping.filter to map incoming request information, e.g. from a select, to build more complex filters.

For Elasticsearch the fields have to be filterable, e.g. need a mapping as keyword.

minimumShouldMatch

Define the minimum match for Elasticsearch, have a look at the official docs: https://www.elastic.co/guide/en/elasticsearch/reference/5.2/query-dsl-minimum-should-match.html

Example:

plugin.tx_searchcore.settings.searching.minimumShouldMatch = 50%

boost

Define fields that should boost the score for results.

Example:

plugin.tx_searchcore.settings.searching.boost {
    search_title = 3
    search_abstract = 1.5
}

For further information take a look at https://www.elastic.co/guide/en/elasticsearch/guide/2.x/_boosting_query_clauses.html

fieldValueFactor

Define a field to use as a factor for scoring. The configuration is passed through to Elasticsearch field_value_factor, see: https://www.elastic.co/guide/en/elasticsearch/reference/5.2/query-dsl-function-score-query.html#function-field-value-factor

Example:

plugin.tx_searchcore.settings.searching.field_value_factor {
    field = rootlineLevel
    modifier = reciprocal
    factor = 2
    missing = 1
}

mapping.filter

Allows to configure filter more in depth. If a filter with the given key exists, the TypoScript will be added.

E.g. you submit a filter in form of:

<f:comment>
    Due to TYPO3 7.x fluid limitations, we build this input ourself.
    No longer necessary in 8 and above
</f:comment>
<select name="tx_searchcore_search[searchRequest][filter][month][from]" class="_control" >
    <option value="">Month</option>
    <f:for each="{searchResult.facets.month.options}" as="month">
        <f:if condition="{month.count}">
            <option
                value="{month.displayName -> f:format.date(format: 'Y-m')}"
                {f:if(condition: '{searchRequest.filter.month.from} == {month.displayName -> f:format.date(format: \'Y-m\')}', then: 'selected="true"')}
            >{month.displayName -> f:format.date(format: '%B %Y')}</option>
        </f:if>
    </f:for>
</select>
<select name="tx_searchcore_search[searchRequest][filter][month][to]" class="_control" >
    <option value="">Month</option>
    <f:for each="{searchResult.facets.month.options}" as="month">
        <f:if condition="{month.count}">
            <option
                value="{month.displayName -> f:format.date(format: 'Y-m')}"
                {f:if(condition: '{searchRequest.filter.month.from} == {month.displayName -> f:format.date(format: \'Y-m\')}', then: 'selected="true"')}
            >{month.displayName -> f:format.date(format: '%B %Y')}</option>
        </f:if>
    </f:for>
</select>

This will create a month filter with sub properties. To make this filter actually work, you can add the following TypoScript, which will be added to the filter:

mapping {
    filter {
        month {
            type = range
            field = released
            raw {
                format = yyyy-MM
            }

            fields {
                gte = from
                lte = to
            }
        }
    }
}

fields has a special meaning here. This will actually map the properties of the filter to fields in Elasticsearch. On the left hand side is the Elasticsearch field name, on the right side the one submitted as a filter.

The field, in above example released, will be used as the Elasticsearch field for filtering. This way you can use arbitrary filter names and map them to existing Elasticsearch fields.

Everything that is configured inside raw is passed, as is, to search service, e.g. Elasticsearch.

fields

Defines the fields to fetch and search from Elasticsearch. With the following sub keys:

query defines the fields to search in. Configure a comma separated list of fields to search in. This is necessary if you have configured special mapping for some fields, or just want to search some fields. The following is an example configuration:

fields {
    query = _all, city
}

The following sub properties configure the fields to fetch from Elasticsearch:

First stored_fields which is a list of comma separated fields which actually exist and will be added. Typically you will use _source to fetch the whole indexed fields.

Second is script_fields, which allow you to configure scripted fields for Elasticsearch. An example might look like the following:

fields {
    script_fields {
        distance {
            condition = {request.filter.distance.location}
            script {
                params {
                    lat = {request.filter.distance.location.lat -> f:format.number()}
                    lon = {request.filter.distance.location.lon -> f:format.number()}
                }
                lang = painless
                inline = doc["location"].arcDistance(params.lat,params.lon) * 0.001
            }
        }
    }
}

In above example we add a single script_field called distance. We add a condition when this field should be added. The condition will be parsed as Fluidtemplate and is casted to bool via PHP. If the condition is true, or no condition exists, the script_field will be added to the query. The condition will be removed and everything else is submitted one to one to Elasticsearch, except each property is run through Fluidtemplate, to allow you to use information from search request, e.g. to insert latitude and longitude from a filter, like in the above example.

sort

Sort is handled like fields.

mode

Used by: Controller while preparing action.

Define to switch from search to filter mode.

Example:

plugin.tx_searchcore.settings.searching {
    mode = filter
}

Only filter is allowed as value, as search is default behaviour. Using filter will trigger a search to provide data while visiting the page, possible filter allow you to build pages like "News".

dataProcessing

Configure modifications on each document before returning search result. For full documentation check out dataprocessors.