北斗启航科技教育平台管理系统

app/service/ContestTopic.js

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+'use strict';
+
+const Service = require('../core/base_service');
+
+const { Op } = require('sequelize');
+
+const fileName = "ContestChoiceTopic";
+
+class ContestChoiceTopicService extends Service {
+  // 管理系统导入选择题
+  async importChoiceTopic(form) {
+    const { ctx } = this;
+    try {
+      const result = await ctx.model4.ChoiceTopic.bulkCreate(form);
+      return result.length == 0 ? false : result;
+    } catch (error) {
+      const blockName = fileName + "--" + "importChoiceTopic";
+      ctx.app.middleware.log('../../serviceLog', blockName + ">>>>" + error);
+      return 'error';
+    }
+  }
+
+  // 管理系统创建选择题
+  async addChoiceTopic(form) {
+    const { ctx } = this;
+    try {
+      const result = await ctx.model4.ChoiceTopic.bulkCreate(form);
+      return result.length == 0 ? false : result;
+    } catch (error) {
+      const blockName = fileName + "--" + "addChoiceTopic";
+      ctx.app.middleware.log('../../serviceLog', blockName + ">>>>" + error);
+      return 'error';
+    }
+  }
+
+  // 管理系统查看选择题
+  async showChoiceTopic(body) {
+    const { ctx } = this;
+    try {
+      let { offset, limit, searchOptions, sortOptions } = body;
+      offset = (offset - 1) * limit;
+      let attributes = ['topic', 'options_a', 'options_b', 'options_c', 'options_d', 'answer'],
+        where = {}, order = [], dbOptions,
+        joinSubstring = [],
+        substring = ['topic', 'options_a', 'options_b', 'options_c', 'options_d'],
+        key = ['answer'],
+        between = [];
+      attributes.forEach(element => {
+        if (searchOptions[element]) {
+          if (searchOptions[element] == '*空') {
+            if (joinSubstring.includes(element)) {
+              where[element] = null;
+            } else {
+              where[element] = [null, ''];
+            }
+          } else if (joinSubstring.includes(element)) {
+            let targetKeyArr = [];
+            where[element] = targetKeyArr.length > 0 ? targetKeyArr : 'null';
+          } else if (substring.includes(element)) {
+            where[element] = { [Op.substring]: searchOptions[element] };
+          } else if (key.includes(element)) {
+            where[element] = searchOptions[element];
+          } else if (between.includes(element)) {
+            where[element] = { [Op.between]: [searchOptions[element][0], searchOptions[element][1]] };
+          }
+        }
+        if (sortOptions[element] == true) {
+          order.push([element, 'ASC']);
+        } else if (sortOptions[element] == false) {
+          order.push([element, 'DESC']);
+        }
+      });
+      dbOptions = { attributes, offset, limit, where, order };
+      const result = await ctx.model4.ChoiceTopic.findAndCountAll(dbOptions);
+      return result.rows.length == 0 ? false : result;
+    } catch (error) {
+      const blockName = fileName + "--" + "showChoiceTopic";
+      ctx.app.middleware.log('../../serviceLog', blockName + ">>>>" + error);
+      return 'error';
+    }
+  }
+
+  // 管理系统编辑选择题
+  async editChoiceTopic(uid, modelType, updateMsg, requestMsg) {
+    const { ctx } = this;
+    try {
+      const result = await ctx.model3.Insiders.findOne({ where: { uid } });
+      if (!result || result.dataValues.role < 6) return false;
+      let where = {};
+      if (modelType == "single") {
+        const { topic, options_a, options_b, options_c, options_d, answer } = requestMsg;
+        where = { topic, options_a, options_b, options_c, options_d, answer };
+      } else if (modelType == "multiple") {
+        let topic = [], options_a = [], options_b = [], options_c = [], options_d = [], answer = [];
+        for (const key in requestMsg) {
+          requestMsg[key].forEach(element => {
+            topic.push(element.topic),
+            options_a.push(element.options_a),
+            options_b.push(element.options_b),
+            options_c.push(element.options_c),
+            options_d.push(element.options_d),
+            answer.push(element.answer)
+          });
+        }
+        where = { topic, options_a, options_b, options_c, options_d, answer };
+      }
+      updateMsg.updated_at = new Date();
+      const resultList = await ctx.model4.ChoiceTopic.update(updateMsg, { where });
+      return resultList[0] == 0 ? false : resultList;
+    } catch (error) {
+      const blockName = fileName + "--" + "editChoiceTopic";
+      ctx.app.middleware.log('../../serviceLog', blockName + ">>>>" + error);
+      return 'error';
+    }
+  }
+
+  // 管理系统删除选择题
+  async delChoiceTopic(uid, modelType, password, requestMsg) {
+    const { ctx } = this;
+    const systemMonitoring = {
+      operate: 2,
+      operate_msg: '删除竞赛题目',
+      type: 0,
+      status: 0,
+      affect_entries: 0,
+      user: uid,
+      created_at: new Date()
+    };
+    try {
+      const result = await ctx.model3.Insiders.findOne({ where: { uid } });
+      if (!result || result.dataValues.password !== this.shaForm(password, this.decryptRequest(result.dataValues.salt)) || result.dataValues.role < 9) {
+        if (!result) systemMonitoring.status = 0;
+        else if (result.dataValues.password !== this.shaForm(password, this.decryptRequest(result.dataValues.salt))) systemMonitoring.status = 1;
+        else if (result.dataValues.role < 9) systemMonitoring.status = 2;
+        await ctx.model3.Monitoring.create(systemMonitoring);
+        return false;
+      };
+      let where = {};
+      if (modelType == "single") {
+        const { topic, options_a, options_b, options_c, options_d, answer } = requestMsg;
+        where = { topic, options_a, options_b, options_c, options_d, answer };
+      } else if (modelType == "multiple") {
+        let topic = [], options_a = [], options_b = [], options_c = [], options_d = [], answer = [];
+        for (const key in requestMsg) {
+          requestMsg[key].forEach(element => {
+            topic.push(element.topic),
+            options_a.push(element.options_a),
+            options_b.push(element.options_b),
+            options_c.push(element.options_c),
+            options_d.push(element.options_d),
+            answer.push(element.answer)
+          });
+        }
+        where = { topic, options_a, options_b, options_c, options_d, answer };
+      }
+      const resultList = await ctx.model4.ChoiceTopic.destroy({ where });
+      systemMonitoring.status = resultList == 0 ? 3 : 4;
+      systemMonitoring.affect_entries = resultList;
+      await ctx.model3.Monitoring.create(systemMonitoring);
+      return resultList == 0 ? false : true;
+    } catch (error) {
+      const blockName = fileName + "--" + "delChoiceTopic";
+      ctx.app.middleware.log('../../serviceLog', blockName + ">>>>" + error);
+      return 'error';
+    }
+  }
+}
+
+module.exports = ContestChoiceTopicService;