Group 1 - Sam Kibathi

config/config.json

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+{
+  "development": {
+    "database": "sequelize_api_hw_development",
+    "host": "127.0.0.1",
+    "dialect": "postgres"
+  },
+  "test": {
+    "database": "sequelize_api_hw_test",
+    "host": "127.0.0.1",
+    "dialect": "postgres"
+  },
+  "production": {
+    "database": "sequelize_api_hw_production",
+    "host": "127.0.0.1",
+    "dialect": "postgres"
+  }
+}

controllers/ReplyController.js

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+const {Reply} = require('../models/reply')
+
+const GetReplies = async (req, res) => {
+    try{
+        const replies = await Reply.findAll({where: {questionId: (req.params.question_id)}})
+        res.send(replies)
+    } catch (error) {
+        throw error
+    }
+}
+
+const CreateReply = async (req, res) => {
+    try{
+        let questionId = parseInt(req.params.question_id)
+        let userId = parseInt(req.params.user_id)
+
+        let replyBody = {
+            questionId,
+            userId,
+            ...req.body
+        }
+        let reply = await Reply.create(replyBody)
+        res.send(reply)
+
+    } catch (error) {
+        throw error
+    }
+}
+
+const UpdateReply = async (req, res) => {
+    try{
+        let replyId = parseInt(req.params.reply_id)
+
+        let updatedReply = await Reply.update(req.body, {
+            where: { id: replyId },
+            returning: true
+        })
+
+        res.send(updatedReply)
+
+    } catch (error) {
+        throw error
+    }
+}
+
+const DeleteReply = async (req, res) => {
+    try{
+        let replyId = parseInt(req.params.reply_id)
+        await Reply.destroy({where: { id: replyId }})
+        res.send({message: `Deleted a reply with an id of ${replyId}`})
+
+    } catch (error) {
+        throw error
+    }
+}
+
+module.exports = {
+    GetReplies,
+    CreateReply,
+    UpdateReply,
+    DeleteReply
+}

migrations/20220413015353-create-user.js

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+'use strict';
+module.exports = {
+  async up(queryInterface, Sequelize) {
+    await queryInterface.createTable('users', {
+      id: {
+        allowNull: false,
+        autoIncrement: true,
+        primaryKey: true,
+        type: Sequelize.INTEGER
+      },
+      firstName: {
+        type: Sequelize.STRING
+      },
+      lastName: {
+        type: Sequelize.STRING
+      },
+      email: {
+        type: Sequelize.STRING
+      },
+      username: {
+        type: Sequelize.STRING
+      },
+      password: {
+        type: Sequelize.STRING
+      },
+      createdAt: {
+        field: 'created_at',
+        allowNull: true,
+        type: Sequelize.DATE,
+        defaultValue: new Date()
+      },
+      updatedAt: {
+        field: 'updated_at',
+        allowNull: true,
+        type: Sequelize.DATE,
+        defaultValue: new Date()
+      }
+    });
+  },
+  async down(queryInterface, Sequelize) {
+    await queryInterface.dropTable('users');
+  }
+};

migrations/20220413015513-create-question.js

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+'use strict';
+module.exports = {
+  async up(queryInterface, Sequelize, DataTypes) {
+    await queryInterface.createTable('questions', {
+      id: {
+        allowNull: false,
+        autoIncrement: true,
+        primaryKey: true,
+        type: Sequelize.INTEGER
+      },
+      content: {
+        type: Sequelize.STRING
+      },
+      userId: {
+        type: Sequelize.INTEGER,
+        onDelete: 'CASCADE',
+        references: {
+          model: 'users',
+          key: 'id'
+        }
+      },
+      createdAt: {
+        field: 'created_at',
+        allowNull: true,
+        type: Sequelize.DATE,
+        defaultValue: new Date()
+      },
+      updatedAt: {
+        field: 'updated_at',
+        allowNull: true,
+        type: Sequelize.DATE,
+        defaultValue: new Date()
+      }
+    });
+  },
+  async down(queryInterface, Sequelize) {
+    await queryInterface.dropTable('questions');
+  }
+};

migrations/20220413015743-create-reply.js

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+'use strict';
+module.exports = {
+  async up(queryInterface, Sequelize, DataTypes) {
+    await queryInterface.createTable('replies', {
+      id: {
+        allowNull: false,
+        autoIncrement: true,
+        primaryKey: true,
+        type: Sequelize.INTEGER
+      },
+      content: {
+        type: Sequelize.STRING
+      },
+      questionId: {
+        type: Sequelize.INTEGER,
+        onDelete: 'CASCADE',
+        references: {
+          model: 'questions',
+          key: 'id'
+        }
+      },
+      userId: {
+        type: Sequelize.INTEGER,
+        onDelete: 'CASCADE',
+        references: {
+          model: 'users',
+          key: 'id'
+        }
+      },
+      createdAt: {
+        field: 'created_at',
+        allowNull: true,
+        type: Sequelize.DATE,
+        defaultValue: new Date()
+      },
+      updatedAt: {
+        field: 'updated_at',
+        allowNull: true,
+        type: Sequelize.DATE,
+        defaultValue: new Date()
+      }
+    });
+  },
+  async down(queryInterface, Sequelize) {
+    await queryInterface.dropTable('replies');
+  }
+};

models/index.js

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+'use strict';
+
+const fs = require('fs');
+const path = require('path');
+const Sequelize = require('sequelize');
+const basename = path.basename(__filename);
+const env = process.env.NODE_ENV || 'development';
+const config = require(__dirname + '/../config/config.json')[env];
+const db = {};
+
+let sequelize;
+if (config.use_env_variable) {
+  sequelize = new Sequelize(process.env[config.use_env_variable], config);
+} else {
+  sequelize = new Sequelize(config.database, config.username, config.password, config);
+}
+
+fs
+  .readdirSync(__dirname)
+  .filter(file => {
+    return (file.indexOf('.') !== 0) && (file !== basename) && (file.slice(-3) === '.js');
+  })
+  .forEach(file => {
+    const model = require(path.join(__dirname, file))(sequelize, Sequelize.DataTypes);
+    db[model.name] = model;
+  });
+
+Object.keys(db).forEach(modelName => {
+  if (db[modelName].associate) {
+    db[modelName].associate(db);
+  }
+});
+
+db.sequelize = sequelize;
+db.Sequelize = Sequelize;
+
+module.exports = db;

models/question.js

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+'use strict';
+const {
+  Model
+} = require('sequelize');
+module.exports = (sequelize, DataTypes) => {
+  class Question extends Model {
+    /**
+     * Helper method for defining associations.
+     * This method is not a part of Sequelize lifecycle.
+     * The `models/index` file will call this method automatically.
+     */
+    static associate(models) {
+      // define association here
+      Question.belongsTo(models.User, { 
+        foreignKey: 'userId',
+        as: 'user',
+        onDelete: 'CASCADE',
+        onUpdate: 'CASCADE'
+
+      })
+      Question.hasMany(models.Reply, {
+        foreignKey: 'questionId',
+        as: 'replies'
+
+      })
+    }
+  }
+  Question.init({
+    content: DataTypes.STRING,
+    userId: {
+      type: DataTypes.STRING,
+      onDelete: 'CASCADE',
+      references: {
+        model: 'users',
+        key: 'id'
+      }
+    }
+  }, {
+    sequelize,
+    modelName: 'Question',
+    tableName: 'questions'
+  });
+  return Question;
+};

models/reply.js

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+'use strict';
+const {
+  Model
+} = require('sequelize');
+const user = require('./user');
+module.exports = (sequelize, DataTypes) => {
+  class Reply extends Model {
+    /**
+     * Helper method for defining associations.
+     * This method is not a part of Sequelize lifecycle.
+     * The `models/index` file will call this method automatically.
+     */
+    static associate(models) {
+      // define association here
+      Reply.belongsTo(models.User, {
+        foreignKey: 'userId',
+        as: 'user',
+        onDelete: 'CASCADE',
+        onUpdate: 'CASCADE'
+      })
+      Reply.belongsTo(models.Question, {
+        foreignKey: 'questionId',
+        as: 'question',
+        onDelete: 'CASCADE',
+        onUpdate: 'CASCADE'
+      })
+
+    }
+  }
+  Reply.init({
+    content: DataTypes.STRING,
+    questionId: {
+      type: DataTypes.STRING,
+      onDelete: 'CASCADE',
+      references: {
+        model: 'questions',
+        key: 'id'
+      }
+    },
+    userId: {
+      type: DataTypes.STRING,
+      onDelete: 'CASCADE',
+      references: {
+        model: 'users',
+        key: 'id'
+      }
+    }
+  }, {
+    sequelize,
+    modelName: 'Reply',
+    tableName: 'replies'
+  });
+  return Reply;
+};