app/migrations/20200120215830-add-priceHistory-table.js

@@ -0,0 +1,38 @@
+"use strict";
+
+module.exports = {
+  up: (queryInterface, Sequelize) => {
+    const tableFields = {
+      id: {
+        type: Sequelize.BIGINT,
+        autoIncrement: true,
+        allowNull: false,
+        primaryKey: true
+      },
+      realEstateId: {
+        type: Sequelize.BIGINT,
+        allowNull: false,
+        references: {
+          model: "RealEstate",
+          key: "id"
+        },
+        onUpdate: "CASCADE",
+        onDelete: "SET NULL"
+      },
+      price: Sequelize.REAL,
+      createdAt: {
+        type: Sequelize.DATE,
+        defaultValue: Sequelize.literal("NOW()")
+      },
+      updatedAt: {
+        type: Sequelize.DATE,
+        defaultValue: Sequelize.literal("NOW()")
+      }
+    };
+    return queryInterface.createTable("PriceHistory", tableFields);
+  },
+
+  down: queryInterface => {
+    return queryInterface.dropTable("PriceHistory", {});
+  }
+};

app/models/priceHistory.js

@@ -0,0 +1,35 @@
+"use strict";
+
+module.exports = (sequalize, DataTypes) => {
+  const PriceHistory = sequalize.define("PriceHistory", {
+    id: {
+      type: DataTypes.BIGINT,
+      autoIncrement: true,
+      primaryKey: true,
+      allowNull: false
+    },
+    realEstateId: {
+      type: DataTypes.BIGINT,
+      allowNull: false,
+
+      references: {
+        model: "RealEstate",
+        key: "id"
+      },
+      onUpdate: "CASCADE",
+      onDelete: "SET NULL"
+    },
+    price: DataTypes.REAL
+  });
+
+  PriceHistory.associate = models => {
+    PriceHistory.hasMany(models.RealEstate, {
+      foreignKey: "id",
+      sourceKey: "realEstateId",
+      targetKey: "id",
+      as: "realEstates"
+    });
+  };
+
+  return PriceHistory;
+};