somardesignstudios/silverstripe-elastic-search

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A silverstripe module providing search with elasticsearch

0.2.1 2021-05-06 23:46 UTC

This package is auto-updated.

Last update: 2022-09-17 02:24:35 UTC


README

Silverstripe module to provide site-wide content search with elasticsearch

Requirements

Installation

  1. Install the module
composer require somardesignstudios/silverstripe-elastic-search
  1. Create log folder in the root of the project with permissions allowing write to the user running the site

Elastic connection configuration

Add your elasticsearch API keys to the .env file

# Elastic search
ELASTIC_CLOUD_ID=""
ELASTIC_INDEX=""

ELASTIC_API_ID=""
ELASTIC_API_KEY=""

Search configuration

Field mappings configuration

Page content will be flattened and stored in a standard set of fields defined in this module's search.yml

You can add additional fields by adding a search.yml config to your own project. e.g.

---
Name: my_search
After:
  - "#somar_search"
---
Somar\Search\ElasticSearchService:
  mappingProperties:
    custom_field_one:
      type: text
      store: true
    custom_field_two:
      type: date
      store: true

Search fields

You can change the default search fields and its weightings in config file, optionally you can define highlighting matches in matched fields:

Somar\Search\ElasticSearchService:
  searchFields:
    - title^2
    - keywords^2.5
    - content
  highlightFields:
    - content

Search page

On the Search page you will find a Vue component that is configurable via .yml files:

Somar\Search\PageType\SearchPage:
  searchConfig:
    headingLevel: 1
    allowEmptyKeyword: false
    secondarySearch: documents
    icons: material # adds material icon into the keyword field & dropdown tag close
    caretIconClass: "icon-dropdown" # adds <i class="icon-dropdown"> to dropdowns
    labels:
      title: Start typing to search the content # all title fields & subtitle can have placeholders and html
      titleFound: "Search results for <b>“[searchedKeyword]”</b>"
      titleSearching: "Searching for <b>“[keyword]”</b> ..."
      subtitle: "[resultsCount] results found"
      resultLinkText: Read more # uses URL of the result when not defined
      filtersHint: Refine your search results below by selecting popular filters and/or ordering them by date.
    filters:
      type:
      placeholder: Type of content
      field: type
      columns: 4 # width out of 12 columns on desktop, defaults to 6, set to 6 on tablet & 12 on mobile
      multiple: true # allows multiple values selected
      showInline: true # display all options inline rather than in dropdown
      default: news # preselected filter
      searchable: false
      iconClass: icon-type # adds <i class="icon-type"> to dropdowns
      options:
        news:
          name: News
          filter: App\Page\NewsArticle
        events:
          name: Events
          filter: App\Page\Event
        content:
          name: Content
          filter:not:
            - App\Page\NewsArticle
            - App\Page\Event
            - App\Model\Document
        documents:
          name: Documents
          filter: App\Model\Document
      date:
        placeholder: By date
        field: sort_date
        options:
          desc:
            name: Most recent first
          asc:
            name: Oldest first
          range:
            name: Select dates

Search type

You can add additional configurations sets when multiple search pages with different configurations are needed. When an additional search type is defined, a dropdown will appear on the Search page. Configuration of additional search type is then merged with the default one.

Somar\Search\PageType\SearchPage:
  searchTypes:
    documents:
      name: Document library
      presets:
        type: documents
      allowEmptyKeyword: true
      labels:
        title: Search publications
      filters:
        topics:
          placeholder: Topics
          field: topics
          multiple: true
          tag: App\Model\Topic
        categories:
          placeholder: Categories
          field: categories
          multiple: true
          tag: App\Model\Category
        regions:
          placeholder: Regions
          field: regions
          multiple: true
          tag: App\Model\Region
        date:
          field: published

Index creation

To create the index run /dev/tasks/Somar-Search-Task-CreateIndexTask. This task will create the index, set the mapping and create a pipeline for processing attachments.

When the index is created, use SearchIndexJob to index the site content (objects of class Page). You can add additional classes to index via .yml config:

Somar\Search\Job\SearchIndexJob:
  IndexedClasses:
    - App\Model\Document