Return the row number on not unique value

demo/dist/bundle.js.LICENSE.txt

@@ -0,0 +1,6 @@
+/* @license
+Papa Parse
+v5.3.0
+https://github.com/mholt/PapaParse
+License: MIT
+*/

demo/index.js

@@ -1,39 +1,39 @@
 import CSVFileValidator from '../src/csv-file-validator'
 
 const requiredError = (headerName, rowNumber, columnNumber) => {
-    return `<div class="red">${headerName} is required in the <strong>${rowNumber} row</strong> / <strong>${columnNumber} column</strong></div>`
+	return `<div class="red">${headerName} is required in the <strong>${rowNumber} row</strong> / <strong>${columnNumber} column</strong></div>`
 }
 const validateError = (headerName, rowNumber, columnNumber) => {
-    return `<div class="red">${headerName} is not valid in the <strong>${rowNumber} row</strong> / <strong>${columnNumber} column</strong></div>`
+	return `<div class="red">${headerName} is not valid in the <strong>${rowNumber} row</strong> / <strong>${columnNumber} column</strong></div>`
 }
-const uniqueError = (headerName) => {
-    return `<div class="red">${headerName} is not unique</div>`
+const uniqueError = (headerName, rowNumber) => {
+	return `<div class="red">${headerName} is not unique at the <strong>${rowNumber} row</strong></div>`
 }
 const isEmailValid = function (email) {
-    const reqExp = /[a-z0-9._%+-]+@[a-z0-9.-]+\.[a-z]{2,3}$/
-    return reqExp.test(email)
+	const reqExp = /[a-z0-9._%+-]+@[a-z0-9.-]+\.[a-z]{2,3}$/
+	return reqExp.test(email)
 }
 const isPasswordValid = function (password) {
-    return password.length >= 4
+	return password.length >= 4
 }
 
 const CSVConfig = {
-    headers: [
-        { name: 'First Name', inputName: 'firstName', required: true, requiredError },
-        { name: 'Last Name', inputName: 'lastName', required: true, requiredError },
-        { name: 'Email', inputName: 'email', required: true, requiredError, unique: true, uniqueError, validate: isEmailValid, validateError },
-        { name: 'Password', inputName: 'password', required: true, requiredError, validate: isPasswordValid, validateError },
-        { name: 'Roles', inputName: 'roles', required: true, requiredError, isArray: true }
-    ]
+	headers: [
+		{ name: 'First Name', inputName: 'firstName', required: true, requiredError },
+		{ name: 'Last Name', inputName: 'lastName', required: true, requiredError },
+		{ name: 'Email', inputName: 'email', required: true, requiredError, unique: true, uniqueError, validate: isEmailValid, validateError },
+		{ name: 'Password', inputName: 'password', required: true, requiredError, validate: isPasswordValid, validateError },
+		{ name: 'Roles', inputName: 'roles', required: true, requiredError, isArray: true }
+	]
 }
 
-document.getElementById('file').onchange = function(event) {
-    CSVFileValidator(event.target.files[0], CSVConfig)
-        .then(csvData => {
-            csvData.inValidMessages.forEach(message => {
-                document.getElementById('invalidMessages').insertAdjacentHTML('beforeend', message)
-            })
-            console.log(csvData.inValidMessages)
-            console.log(csvData.data)
-        })
+document.getElementById('file').onchange = function (event) {
+	CSVFileValidator(event.target.files[0], CSVConfig)
+		.then(csvData => {
+			csvData.inValidMessages.forEach(message => {
+				document.getElementById('invalidMessages').insertAdjacentHTML('beforeend', message)
+			})
+			console.log(csvData.inValidMessages)
+			console.log(csvData.data)
+		})
 }

demo/package.json

@@ -12,5 +12,9 @@
     "email": "v.stokol@gmail.com",
     "url": "https://github.com/shystruk"
   },
-  "license": "MIT"
+  "license": "MIT",
+  "devDependencies": {
+    "webpack": "^5.37.0",
+    "webpack-cli": "^4.7.0"
+  }
 }

package.json

@@ -1,6 +1,6 @@
 {
 	"name": "csv-file-validator",
-	"version": "1.10.1",
+	"version": "1.10.2",
 	"description": "Validation of CSV file against user defined schema (returns back object with data and invalid messages)",
 	"main": "./src/csv-file-validator.js",
 	"repository": "https://github.com/shystruk/csv-file-validator.git",

src/csv-file-validator.js

@@ -132,18 +132,30 @@
 
 		config.headers
 			.filter(function (header) {
-				return header.unique
+				return header.unique;
 			})
 			.forEach(function (header) {
 				if (!isValuesUnique(file.data, header.inputName)) {
-					file.inValidMessages.push(
-						_isFunction(header.uniqueError)
-							? header.uniqueError(header.name)
-							: String(header.name + ' is not unique')
-					);
+					const duplicates = [];
+
+					file.data.forEach((row, rowIndex) => {
+						var value = row[header.inputName];
+
+						if (duplicates.indexOf(value) >= 0) {
+							file.inValidMessages.push(
+								_isFunction(header.uniqueError)
+									? header.uniqueError(header.name, rowIndex + 1)
+									: String(
+										header.name + " is not unique at the " + (rowIndex + 1) + "row"
+									)
+							);
+						} else {
+							duplicates.push(value);
+						}
+					});
 				}
 			});
-	};
+	}
 
 	return CSVFileValidator;
 })));

test.js

@@ -15,7 +15,7 @@ const isEmailValid = (email) => {
 }
 
 const isPasswordValid = (password) => (password.length >= 4)
-const uniqueError = (headerName) => (`<div class="red">${headerName} is not unique</div>`)
+const uniqueError = (headerName, rowNumber) => (`<div class="red">${headerName} is not unique at the <strong>${rowNumber} row</strong></div>`)
 
 const CSVConfig = {
 	headers: [
@@ -47,6 +47,13 @@ const CSVValidFileWithoutHeaders = [
 	'Vasyl;Stokolosa;fake@test.com;123123123;user;Ukraine',
 ].join('\n');
 
+const CSVInvalidFileWithDuplicates = [
+	CSVHeader,
+	'Vasyl;Stokolosa;fake@test.com;123123;admin,manager',
+	'Vasyl;Stokolosa;fake@test.com;123123123;user;Ukraine',
+	'Vasyl;Stokolosa;fake@test.com;123123123;user;Ukraine',
+].join('\n');
+
 test('module should be a function', t => {
 	t.is(typeof CSVFileValidator, 'function');
 });
@@ -59,35 +66,35 @@ test('should return an object with empty inValidMessages/data keys', async t =>
 	t.deepEqual(csvData.data, []);
 });
 
-test('should validate .csv file and return invalid messages with data', async t => {
+test('should return invalid messages with data', async t => {
 	const csvData = await CSVFileValidator(CSVInvalidFile, CSVConfig);
 
 	t.is(csvData.inValidMessages.length, 3);
 	t.is(csvData.data.length, 2);
 });
 
-test('should validate .csv file and return data, file is valid', async t => {
+test('should return data, file is valid', async t => {
 	const csvData = await CSVFileValidator(CSVValidFile, CSVConfig);
 
 	t.is(csvData.inValidMessages.length, 0);
 	t.is(csvData.data.length, 2);
 });
 
-test('should validate .csv file without headers and return data, file is valid and headers are optional', async t => {
+test('file without headers, the file is valid and headers are optional', async t => {
 	const csvData = await CSVFileValidator(CSVValidFileWithoutHeaders, { ...CSVConfig, isHeaderNameOptional: true });
 
 	t.is(csvData.inValidMessages.length, 0);
 	t.is(csvData.data.length, 2);
 });
 
-test('should validate .csv file with headers and return data, file is valid and headers are optional', async t => {
+test('file with headers, the file is valid and headers are optional', async t => {
 	const csvData = await CSVFileValidator(CSVValidFile, { ...CSVConfig, isHeaderNameOptional: true });
 
 	t.is(csvData.inValidMessages.length, 0);
 	t.is(csvData.data.length, 2);
 });
 
-test('should validate .csv file without headers and return invalid messages with data, file is valid and headers are missed', async t => {
+test('file is valid and headers are missed', async t => {
 	const csvData = await CSVFileValidator(CSVValidFileWithoutHeaders, CSVConfig);
 
 	t.is(csvData.inValidMessages.length, 5);
@@ -99,3 +106,10 @@ test('should return optional column', async t => {
 
 	t.is(csvData.data[1].country, 'Ukraine');
 });
+
+test('file is valid and Email is not unique at the ... row', async t => {
+	const csvData = await CSVFileValidator(CSVInvalidFileWithDuplicates, CSVConfig);
+
+	t.is(csvData.inValidMessages.length, 2);
+	t.is(csvData.data.length, 3);
+});

yarn.lock

@@ -1694,9 +1694,9 @@ graceful-fs@^4.1.11, graceful-fs@^4.1.2:
   integrity sha512-WjKPNJF79dtJAVniUlGGWHYGz2jWxT6VhN/4m1NdkbZ2nOsEF+cI1Edgql5zCRhs/VsQYRvrXctxktVXZUkixw==
 
 handlebars@^4.0.3:
-  version "4.7.6"
-  resolved "https://registry.yarnpkg.com/handlebars/-/handlebars-4.7.6.tgz#d4c05c1baf90e9945f77aa68a7a219aa4a7df74e"
-  integrity sha512-1f2BACcBfiwAfStCKZNrUCgqNZkGsAT7UM3kkYtXuLo0KnaVfjKOyf7PRzB6++aK9STyT1Pd2ZCPe3EGOXleXA==
+  version "4.7.7"
+  resolved "https://registry.yarnpkg.com/handlebars/-/handlebars-4.7.7.tgz#9ce33416aad02dbd6c8fafa8240d5d98004945a1"
+  integrity sha512-aAcXm5OAfE/8IXkcZvCepKU3VzW1/39Fb5ZuqMtgI/hT8X2YgoMvBY5dLhq/cpOvw7Lk1nK/UF71aLG/ZnVYRA==
   dependencies:
     minimist "^1.2.5"
     neo-async "^2.6.0"
@@ -1804,9 +1804,9 @@ home-or-tmp@^2.0.0:
     os-tmpdir "^1.0.1"
 
 hosted-git-info@^2.1.4:
-  version "2.8.8"
-  resolved "https://registry.yarnpkg.com/hosted-git-info/-/hosted-git-info-2.8.8.tgz#7539bd4bc1e0e0a895815a2e0262420b12858488"
-  integrity sha512-f/wzC2QaWBs7t9IYqB4T3sR1xviIViXJRJTWBlx2Gf3g0Xi5vI7Yy4koXQ1c9OYDGHN9sBy1DQ2AB8fqZBWhUg==
+  version "2.8.9"
+  resolved "https://registry.yarnpkg.com/hosted-git-info/-/hosted-git-info-2.8.9.tgz#dffc0bf9a21c02209090f2aa69429e1414daf3f9"
+  integrity sha512-mxIDAb9Lsm6DoOJ7xH+5+X4y1LU/4Hi50L9C5sIswK3JzULS4bwk1FvjdBgvYR4bzT4tuUQiC15FE2f5HbLvYw==
 
 http-signature@~0.10.0:
   version "0.10.1"
@@ -2451,9 +2451,9 @@ lodash.merge@^4.6.0:
   integrity sha512-0KpjqXRVvrYyCsX1swR/XTK0va6VQkQM6MNo7PqW77ByjAhoARA8EfrP1N4+KlKj8YS0ZUCtRT/YUuhyYDujIQ==
 
 lodash@^4.17.20, lodash@^4.17.4:
-  version "4.17.20"
-  resolved "https://registry.yarnpkg.com/lodash/-/lodash-4.17.20.tgz#b44a9b6297bcb698f1c51a3545a2b3b368d59c52"
-  integrity sha512-PlhdFcillOINfeV7Ni6oF1TAEayyZBoZ8bcshTHqOYJYlrqzRK5hagpagky5o4HfCzzd1TRkXPMFq6cKk9rGmA==
+  version "4.17.21"
+  resolved "https://registry.yarnpkg.com/lodash/-/lodash-4.17.21.tgz#679591c564c3bffaae8454cf0b3df370c3d6911c"
+  integrity sha512-v2kDEe57lecTulaDIuNTPy3Ry4gLGJ6Z1O3vE1krgXZNrsQ+LFTGHVxVjcXPs17LhbZVGedAJv8XZ1tvj5FvSg==
 
 loose-envify@^1.0.0:
   version "1.4.0"
@@ -3940,9 +3940,9 @@ tunnel-agent@~0.4.0:
   integrity sha1-Y3PbdpCf5XDgjXNYM2Xtgop07us=
 
 uglify-js@^3.1.4:
-  version "3.12.1"
-  resolved "https://registry.yarnpkg.com/uglify-js/-/uglify-js-3.12.1.tgz#78307f539f7b9ca5557babb186ea78ad30cc0375"
-  integrity sha512-o8lHP20KjIiQe5b/67Rh68xEGRrc2SRsCuuoYclXXoC74AfSRGblU1HKzJWH3HxPZ+Ort85fWHpSX7KwBUC9CQ==
+  version "3.13.5"
+  resolved "https://registry.yarnpkg.com/uglify-js/-/uglify-js-3.13.5.tgz#5d71d6dbba64cf441f32929b1efce7365bb4f113"
+  integrity sha512-xtB8yEqIkn7zmOyS2zUNBsYCBRhDkvlNxMMY2smuJ/qA8NCHeQvKCF3i9Z4k8FJH4+PJvZRtMrPynfZ75+CSZw==
 
 uid2@0.0.3:
   version "0.0.3"
@@ -4137,9 +4137,9 @@ xtend@^4.0.0, xtend@~4.0.1:
   integrity sha512-LKYU1iAXJXUgAXn9URjiu+MWhyUXHsvfp7mcuYm9dSUKK0/CjtrUwFAxD82/mCWbtLsGjFIad0wIsod4zrTAEQ==
 
 y18n@^3.2.1:
-  version "3.2.1"
-  resolved "https://registry.yarnpkg.com/y18n/-/y18n-3.2.1.tgz#6d15fba884c08679c0d77e88e7759e811e07fa41"
-  integrity sha1-bRX7qITAhnnA136I53WegR4H+kE=
+  version "3.2.2"
+  resolved "https://registry.yarnpkg.com/y18n/-/y18n-3.2.2.tgz#85c901bd6470ce71fc4bb723ad209b70f7f28696"
+  integrity sha512-uGZHXkHnhF0XeeAPgnKfPv1bgKAYyVvmNL1xlKsPYZPaIHxGti2hHqvOCQv71XMsLxu1QjergkqogUnms5D3YQ==
 
 yallist@^2.1.2:
   version "2.1.2"