Add checkbox to contain all tags in advanced search and change separators according its state.

app/assets/javascripts/discourse/components/search-advanced-options.js.es6

@@ -77,7 +77,8 @@ export default Em.Component.extend({
             likes: false,
             private: false,
             seen: false
-          }
+          },
+          all_tags: false
         },
         status: '',
         min_post_count: '',
@@ -230,13 +231,15 @@ export default Em.Component.extend({
 
     const match = this.filterBlocks(REGEXP_TAGS_PREFIX);
     const tags = this.get('searchedTerms.tags');
+    const contain_all_tags = this.get('searchedTerms.special.all_tags');
 
     if (match.length !== 0) {
-      const existingInput = _.isArray(tags) ? tags.join(',') : tags;
+      const join_char = contain_all_tags ? ',' : '|';
+      const existingInput = _.isArray(tags) ? tags.join(join_char) : tags;
       const userInput = match[0].replace(REGEXP_TAGS_REPLACE, '');
 
       if (existingInput !== userInput) {
-        this.set('searchedTerms.tags', (userInput.length !== 0) ? userInput.split(',') : []);
+        this.set('searchedTerms.tags', (userInput.length !== 0) ? userInput.split(join_char) : []);
       }
     } else if (tags.length !== 0) {
       this.set('searchedTerms.tags', []);
@@ -365,14 +368,16 @@ export default Em.Component.extend({
     }
   },
 
-  @observes('searchedTerms.tags')
+  @observes('searchedTerms.tags', 'searchedTerms.special.all_tags')
   updateSearchTermForTags() {
     const match = this.filterBlocks(REGEXP_TAGS_PREFIX);
     const tagFilter = this.get('searchedTerms.tags');
     let searchTerm = this.get('searchTerm') || '';
+    const contain_all_tags = this.get('searchedTerms.special.all_tags');
 
     if (tagFilter && tagFilter.length !== 0) {
-      const tags = tagFilter.join(',');
+      const join_char = contain_all_tags ? ',' : '|';
+      const tags = tagFilter.join(join_char);
 
       if (match.length !== 0) {
         searchTerm = searchTerm.replace(match[0], `tags:${tags}`);

app/assets/javascripts/discourse/templates/components/search-advanced-options.hbs

@@ -41,12 +41,15 @@
       <label class="control-label" for="search-with-tags">{{i18n "search.advanced.with_tags.label"}}</label>
       <div class="controls">
         {{tag-chooser tags=searchedTerms.tags blacklist=searchedTerms.tags allowCreate=false placeholder="" everyTag="true" unlimitedTagCount="true" width="70%"}}
+      <section class="field">
+          <label>{{ input type="checkbox" class="all-tags" checked=searchedTerms.special.all_tags}} {{i18n "search.advanced.filters.all_tags"}} </label>
+      </section>
       </div>
     </div>
   </div>
 {{/if}}
 
-<div class="container">
+<div class="container">contain_all_tags
   <div class="control-group pull-left">
     <label class="control-label" for="search-in-options">{{i18n "search.advanced.filters.label"}}</label>
     <div class="controls">

config/locales/client.en.yml

@@ -1340,6 +1340,7 @@ en:
           seen: I've read
           unseen: I've not read
           wiki: are wiki
+          all_tags: Contains all tags
         statuses:
           label: Where topics
           open: are open