This guide is a continuation of How to deploy ElasticSearch on a Rails app using Digital Ocean and will walk through how to use synonym search in Elastic Search.
class JobIndex < Chewy::Index
settings analysis: {
"filter": {
"synonym_filter": {
"type": "synonym",
"ignore_case": true,
"synonyms": [File.read(Rails.root + 'db/fixtures/search_synonyms.json')]
}
},
"analyzer": {
"synonym_analyzer": {
"tokenizer": "standard",
"filter": ["lowercase", "synonym_filter"]
}
}
}
...
class JobIndex < Chewy::Index
...
define_type Job do
field "title", type: 'text'
field "category_list", type: 'text', analyzer: 'synonym_analyzer', value: -> (job) {
job.category_list
}
end
end
Create a new file db/fixtures/search_synonyms.json and store a comma separated list of synonyms.
"customer service, customer success, customer support, chat agent, chat support",
"developer, development, coding, coder, software developer, software engineer",
Create a post with a category tag of coder and search for developer. The post should show up.