Initial content

Chapter 15/End of Chapter/part2app/dist/server/api/validation_functions.js

@@ -0,0 +1,57 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.validateModel = exports.validateIdProperty = exports.validate = void 0;
+const validation_types_1 = require("./validation_types");
+function validate(data, reqs) {
+    let validatedData = {};
+    Object.entries(reqs).forEach(([prop, rule]) => {
+        const [valid, value] = applyRule(data[prop], rule);
+        if (valid) {
+            validatedData[prop] = value;
+        }
+        else {
+            throw new validation_types_1.ValidationError(prop, "Validation Error");
+        }
+    });
+    return validatedData;
+}
+exports.validate = validate;
+function applyRule(val, rule) {
+    const required = Array.isArray(rule) ? true : rule.required;
+    const checks = Array.isArray(rule) ? rule : rule.validation;
+    const convert = Array.isArray(rule) ? (v) => v : rule.converter;
+    if (val === null || val == undefined || val === "") {
+        return [required ? false : true, val];
+    }
+    let valid = true;
+    checks.forEach(check => {
+        if (!check(val)) {
+            valid = false;
+        }
+    });
+    return [valid, convert ? convert(val) : val];
+}
+function validateIdProperty(val, v) {
+    if (v.keyValidator) {
+        const [valid, value] = applyRule(val, v.keyValidator);
+        if (valid) {
+            return value;
+        }
+        throw new validation_types_1.ValidationError("ID", "Validation Error");
+    }
+    return val;
+}
+exports.validateIdProperty = validateIdProperty;
+function validateModel(model, rules) {
+    if (rules.propertyRules) {
+        model = validate(model, rules.propertyRules);
+    }
+    if (rules.modelRule) {
+        const [valid, data] = applyRule(model, rules.modelRule);
+        if (valid) {
+            return data;
+        }
+        throw new validation_types_1.ValidationError("Model", "Validation Error");
+    }
+}
+exports.validateModel = validateModel;