Add migration for new fields in patient database

Pass table and model names to ModelMetadata constructor.

Author: fwextensions

migrations/20220721055200-add-gcs-treatments-to-patient.js

@@ -0,0 +1,33 @@
+const patient = require('../src/metadata/patient');
+const convertToSequelizeField = require('../src/metadata/convertToSequelizeField');
+
+const fields = patient.getFieldHash(convertToSequelizeField);
+const newFields = ['treatmentNotes', 'glasgowComaScale'];
+const { tableName } = patient;
+
+module.exports = {
+  up: async (queryInterface, Sequelize) => {
+    await queryInterface.sequelize.transaction(async (transaction) => {
+      for (const fieldName of newFields) {
+        const newField = fields[fieldName];
+
+        await queryInterface.addColumn(
+          tableName,
+          newField.field,
+          newField,
+          { transaction }
+        );
+      }
+    });
+  },
+
+  down: async (queryInterface) => {
+    await queryInterface.sequelize.transaction(async (transaction) => {
+      for (const fieldName of newFields) {
+        const newField = fields[fieldName];
+
+        await queryInterface.removeColumn(tableName, newField.field, { transaction });
+      }
+    });
+  },
+};

models/patient.js

@@ -19,8 +19,8 @@ module.exports = (sequelize) => {
   Patient.init(patient.getFieldHash(convertToSequelizeField), {
     sequelize,
     timestamps: true,
-    tableName: 'patient',
-    modelName: 'Patient',
+    tableName: patient.tableName,
+    modelName: patient.modelName,
   });
   return Patient;
 };

src/metadata/ModelMetadata.js

@@ -16,7 +16,9 @@ function createParamsList(fields) {
 }
 
 class ModelMetadata {
-  constructor(fields) {
+  constructor({ modelName, tableName = modelName.toLowerCase(), fields }) {
+    this.modelName = modelName;
+    this.tableName = tableName;
     this.fields = Object.freeze(fields.map((field) => new FieldMetadata(field)));
     this.params = createParamsList(this.fields);
   }

src/metadata/patient.js

@@ -141,4 +141,4 @@ const fields = [
   },
 ];
 
-module.exports = new ModelMetadata(fields);
+module.exports = new ModelMetadata({ modelName: 'Patient', fields });