Add `exclude_unreviewed` param to `GET /api/v2/search` REST API (#11977)

Make it so normal search returns even unreviewed matches, but
autosuggestions do not.

Fix #11960

app/controllers/api/v2/search_controller.rb

@@ -22,7 +22,7 @@ class Api::V2::SearchController < Api::BaseController
       params[:q],
       current_account,
       limit_param(RESULTS_LIMIT),
-      search_params.merge(resolve: truthy_param?(:resolve))
+      search_params.merge(resolve: truthy_param?(:resolve), exclude_unreviewed: truthy_param?(:exclude_unreviewed))
     )
   end
 

app/javascript/mastodon/actions/compose.js

@@ -369,6 +369,7 @@ const fetchComposeSuggestionsTags = throttle((dispatch, getState, token) => {
       q: token.slice(1),
       resolve: false,
       limit: 4,
+      exclude_unreviewed: true,
     },
   }).then(({ data }) => {
     dispatch(readyComposeSuggestionsTags(token, data.hashtags));

app/models/tag.rb

@@ -124,14 +124,13 @@ class Tag < ApplicationRecord
       end
     end
 
-    def search_for(term, limit = 5, offset = 0)
+    def search_for(term, limit = 5, offset = 0, options = {})
       normalized_term = normalize(term.strip).mb_chars.downcase.to_s
       pattern         = sanitize_sql_like(normalized_term) + '%'
+      query           = Tag.listable.where(arel_table[:name].lower.matches(pattern))
+      query           = query.where(arel_table[:name].lower.eq(normalized_term).or(arel_table[:reviewed_at].not_eq(nil))) if options[:exclude_unreviewed]
 
-      Tag.listable
-         .where(arel_table[:name].lower.matches(pattern))
-         .where(arel_table[:name].lower.eq(normalized_term).or(arel_table[:reviewed_at].not_eq(nil)))
-         .order(Arel.sql('length(name) ASC, name ASC'))
+      query.order(Arel.sql('length(name) ASC, name ASC'))
            .limit(limit)
            .offset(offset)
     end

app/services/search_service.rb

@@ -60,7 +60,8 @@ class SearchService < BaseService
     TagSearchService.new.call(
       @query,
       limit: @limit,
-      offset: @offset
+      offset: @offset,
+      exclude_unreviewed: @options[:exclude_unreviewed]
     )
   end
 

app/services/tag_search_service.rb

@@ -3,8 +3,9 @@
 class TagSearchService < BaseService
   def call(query, options = {})
     @query   = query.strip.gsub(/\A#/, '')
-    @offset = options[:offset].to_i
-    @limit  = options[:limit].to_i
+    @offset  = options.delete(:offset).to_i
+    @limit   = options.delete(:limit).to_i
+    @options = options
 
     results   = from_elasticsearch if Chewy.enabled?
     results ||= from_database
@@ -72,12 +73,15 @@ class TagSearchService < BaseService
       },
     }
 
-    TagsIndex.query(query).filter(filter).limit(@limit).offset(@offset).objects.compact
+    definition = TagsIndex.query(query)
+    definition = definition.filter(filter) if @options[:exclude_unreviewed]
+
+    definition.limit(@limit).offset(@offset).objects.compact
   rescue Faraday::ConnectionFailed, Parslet::ParseFailed
     nil
   end
 
   def from_database
-    Tag.search_for(@query, @limit, @offset)
+    Tag.search_for(@query, @limit, @offset, @options)
   end
 end

spec/services/search_service_spec.rb

@@ -77,10 +77,10 @@ describe SearchService, type: :service do
         it 'includes the tag in the results' do
           query = '#tag'
           tag = Tag.new
-          allow(Tag).to receive(:search_for).with('tag', 10, 0).and_return([tag])
+          allow(Tag).to receive(:search_for).with('tag', 10, 0, exclude_unreviewed: nil).and_return([tag])
 
           results = subject.call(query, nil, 10)
-          expect(Tag).to have_received(:search_for).with('tag', 10, 0)
+          expect(Tag).to have_received(:search_for).with('tag', 10, 0, exclude_unreviewed: nil)
           expect(results).to eq empty_results.merge(hashtags: [tag])
         end
         it 'does not include tag when starts with @ character' do