Add discussion logic for snippets

Author: Chalarangelo

spec/models/snippet.test.js

@@ -29,6 +29,7 @@ describe('Snippet', () => {
     id: 'js/s/my-snippet',
     tags: 'array;object',
     tokens: 'lorem;ipsum',
+    discussion: 2020,
   });
 
   const nodeJsSnippet = SnippetFactory.create('taggedNodeJs', {
@@ -129,6 +130,18 @@ describe('Snippet', () => {
     });
   });
 
+  describe('discussionUrl', () => {
+    it('returns discussion URL if discussion exists', () => {
+      expect(jsSnippet.discussionUrl).toEqual(
+        `https://github.com/Chalarangelo/30-seconds-of-code/discussions/${jsSnippet.discussion}`
+      );
+    });
+
+    it('returns null if no discussion', () => {
+      expect(snippetWithoutLanguage.discussionUrl).toEqual(null);
+    });
+  });
+
   describe('isScheduled', () => {
     it('returns false if not scheduled', () => {
       expect(publishedSnippet.isScheduled).toEqual(false);

src/config/settings.js

@@ -16,6 +16,8 @@ const settings = {
     url: 'https://github.com/Chalarangelo/30-seconds-of-code',
     snippetPrefix:
       'https://github.com/Chalarangelo/30-seconds-of-code/blob/master/content/snippets',
+    discussionPrefix:
+      'https://github.com/Chalarangelo/30-seconds-of-code/discussions/',
   },
   license: {
     url: 'https://creativecommons.org/licenses/by/4.0/',

src/lib/contentUtils/modelWorkers/snippet.js

@@ -23,6 +23,7 @@ export const extractSnippetData = async (snippetGlob, languageData) => {
         dateModified,
         listed,
         tocEnabled = true,
+        discussion = null,
       } = snippet;
 
       const language = languageData.get(languageKey);
@@ -60,6 +61,7 @@ export const extractSnippetData = async (snippetGlob, languageData) => {
         languageKey,
         tokens: tokens.join(';'),
         ranking,
+        discussion,
       };
     })
   );
@@ -83,6 +85,7 @@ export const exportSnippetData = snippetData => {
       languageId: snippet.languageKey,
       tokens: snippet.tokens,
       ranking: snippet.ranking,
+      discussion: snippet.discussion,
     };
   });
   /* eslint-enable camelcase */

src/models/snippet.js

@@ -29,6 +29,7 @@ export default class Snippet extends ContentModel {
     this.dateModified = new Date(data.dateModified);
     this.tableOfContents = data.tableOfContents;
     this.languageId = data.languageId;
+    this.discussion = data.discussion;
   }
 
   static byNew(records) {
@@ -117,6 +118,12 @@ export default class Snippet extends ContentModel {
     return `${settings.repository.snippetPrefix}${this.slug}.md`;
   }
 
+  get discussionUrl() {
+    if (!this.discussion) return null;
+
+    return `${settings.repository.discussionPrefix}${this.discussion}`;
+  }
+
   get isScheduled() {
     return this.dateModified > new Date();
   }

src/serializers/snippetContextSerializer.js

@@ -12,6 +12,7 @@ export default class SnippetContextSerializer extends Serializer {
       ['cover', object => object.coverUrlFullSize],
       ['coverSrcset', object => object.coverSrcsetFullSize],
       'githubUrl',
+      'discussionUrl',
       'tableOfContents',
     ]);
   }