info

uniCloud-alipay/cloudfunctions/cms-articles-like/index.obj.js

@@ -0,0 +1,80 @@
+const db = uniCloud.database();
+const _ = db.command;
+
+module.exports = {
+	_before: function () {
+
+	},
+
+	async likeArticle(query) {
+		let user_id = query.user_id;
+		let article_id = query.article_id;
+		let datetime = new Date().getTime();
+		
+		const transaction = await db.startTransaction();
+		try {
+			const exist = await transaction.collection('cms-articles-like')
+				.where({
+					user_id: user_id,
+					article_id: article_id,
+					create_time: datetime
+				}).count();
+
+			if (exist.total > 0) throw new Error('已点喜欢');
+
+			await transaction.collection('cms-articles-like').add({
+				user_id: user_id,
+				article_id: article_id,
+				create_time: datetime
+				
+			});
+
+			await transaction.collection('uni-cms-articles').doc(article_id)
+				.update({
+					like_count: _.inc(1)
+				});
+
+			await transaction.commit();
+			return {
+				code: 200
+			};
+		} catch (e) {
+			await transaction.rollback();
+			return {
+				code: 500,
+				msg: e.message
+			};
+		}
+	},
+
+	async relikeArticle(query) {
+		
+		try {
+			let user_id = query.user_id;
+			let article_id = query.article_id;
+			let datetime = new Date().getTime();
+			
+			const likeRes = await db.collection('cms-articles-like')
+				.where({
+					user_id: user_id,
+					article_id: article_id,
+				}).remove();
+
+			if (likeRes.deleted === 0) throw new Error('未找到点赞记录');
+
+			await db.collection('uni-cms-articles').doc(article_id)
+				.update({
+					like_count: _.inc(-1)
+				});
+
+			return {
+				code: 200
+			};
+		} catch (e) {
+			return {
+				code: 500,
+				msg: e.message
+			};
+		}
+	},
+}