Merge pull request #32 from leodasvacas/regex-messages

Custom messages for regex rules

README.md

@@ -53,7 +53,8 @@ override func viewDidLoad() {
 	validator.registerField(fullNameTextField, rules: [RequiredRule(), FullNameRule()])
 	
 	// You can pass in error labels with your rules
-	validator.registerField(emailTextField, errorLabel: emailErrorLabel, rules: [RequiredRule(), EmailRule()])
+	// You can pass in custom error messages to regex rules (such as ZipCodeRule and EmailRule)
+	validator.registerField(emailTextField, errorLabel: emailErrorLabel, rules: [RequiredRule(), EmailRule(message: "Invalid email")])
 	
 	// You can validate against other fields using ConfirmRule
 	validator.registerField(emailConfirmTextField, errorLabel: emailConfirmErrorLabel, rules: [ConfirmationRule(confirmField: emailTextField)])
@@ -101,31 +102,16 @@ func validationFailed(errors:[UITextField:ValidationError]) {
 
 We will create a ```SSNRule``` class to show how to create your own Validation. A United States Social Security Number (or SSN) is a field that consists of XXX-XX-XXXX. 
 
-Create a class that implements the Rule protocol
+Create a class that inherits from RegexRule
 
 ```swift
 
-class SSNVRule: Rule {
-    let REGEX = "^\\d{3}-\\d{2}-\\d{4}$"
-    
-    init(){}
-    
-    // allow for custom variables to be passed
-    init(regex:String){
-        self.REGEX = regex
-    }
-    
-    func validate(value: String) -> Bool {
-        if let ssnTest = NSPredicate(format: "SELF MATCHES %@", REGEX) {
-            if ssnTest.evaluateWithObject(value) {
-                return true
-            }
-            return false
-        }
-    }
-    
-    func errorMessage() -> String{
-        return "Not a valid SSN"
+class SSNVRule: RegexRule {
+
+    static let regex = "^\\d{3}-\\d{2}-\\d{4}$"
+	
+    convenience init(message : String = "Not a valid SSN"){
+	self.init(regex: SSNVRule.regex, message : message)
     }
 }
 ```

Validator/EmailRule.swift

@@ -9,16 +9,10 @@
 import Foundation
 
 public class EmailRule: RegexRule {
-    
-    public init(){
-        super.init(regex: "[A-Z0-9a-z._%+-]+@[A-Za-z0-9.-]+\\.[A-Za-z]{2,6}")
-    }
-    
-    override public init(regex:String){
-        super.init(regex: regex)
-    }
-
-    override public func errorMessage() -> String {
-        return "Must be a valid email address"
-    }
+	
+	static let regex = "[A-Z0-9a-z._%+-]+@[A-Za-z0-9.-]+\\.[A-Za-z]{2,6}"
+	
+	public convenience init(message : String = "Must be a valid email address"){
+		self.init(regex: EmailRule.regex, message: message)
+	}
 }

Validator/PasswordRule.swift

@@ -13,21 +13,14 @@ public class PasswordRule : RegexRule {
     // Alternative Regexes
     
     // 8 characters. One uppercase. One Lowercase. One number.
-    // var PASSWORD_REGEX = "^(?=.*?[A-Z])(?=.*?[0-9])(?=.*?[a-z]).{8,}$"
+    // static let regex = "^(?=.*?[A-Z])(?=.*?[0-9])(?=.*?[a-z]).{8,}$"
     //
     // no length. One uppercase. One lowercae. One number.
-    // var PASSWORD_REGEX = "^(?=.*?[A-Z])(?=.*?[0-9])(?=.*?[a-z]).*?$"
+    // static let regex = "^(?=.*?[A-Z])(?=.*?[0-9])(?=.*?[a-z]).*?$"
+	
+    static let regex = "^(?=.*?[A-Z]).{8,}$"
     
-    public init(){
-        super.init(regex: "^(?=.*?[A-Z]).{8,}$")
+	public convenience init(message : String = "Must be 8 characters with 1 uppercase") {
+		self.init(regex: PasswordRule.regex, message : message)
     }
-    
-    override public init(regex: String) {
-        super.init(regex: regex)
-    }
-    
-    override public func errorMessage() -> String {
-        return "Must be 8 characters with 1 uppercase"
-    }
-    
 }

Validator/RegexRule.swift

@@ -11,9 +11,11 @@ import Foundation
 public class RegexRule : Rule {
     
     private var REGEX: String = "^(?=.*?[A-Z]).{8,}$"
-    
-    public init(regex: String){
+    private var message : String
+	
+    public init(regex: String, message: String = "Invalid Regular Expression"){
         self.REGEX = regex
+		self.message = message
     }
     
     public func validate(value: String) -> Bool {
@@ -22,6 +24,6 @@ public class RegexRule : Rule {
     }
     
     public func errorMessage() -> String {
-        return "Invalid Regular Expression"
+        return message
     }
 }

Validator/ZipCodeRule.swift

@@ -10,16 +10,7 @@ import Foundation
 
 public class ZipCodeRule: RegexRule {
     
-    public init(){
-        super.init(regex: "\\d{5}")
+	public convenience init(message : String = "Enter a valid 5 digit zipcode"){
+		self.init(regex: "\\d{5}", message : message)
     }
-    
-    override public init(regex: String) {
-        super.init(regex: regex)
-    }
-    
-    public override func errorMessage() -> String {
-        return "Enter a valid 5 digit zipcode"
-    }
-    
 }