skadi.components.validation.validators.digit source code

1 /**
2  * Skadi.d Web Framework
3  * Validation Component
4 
5  * Authors: Faianca
6  * Copyright: Copyright (c) 2015 Faianca
7  * License: MIT License, see LICENSE
8  */
9 module skadi.components.validation.validators.digit;
10 
11 import skadi.components.validation.validatorInterface;
12 import skadi.components.validation.validation;
13 import skadi.components.validation.validator;
14 import skadi.components.validation.message;
15 
16 import std..string;
17 import std.ascii;
18 import std.stdio;
19 import std.conv;
20 
21 /**
22  * Checks if a value has a correct e-mail format
23 
24  * Check Unittests for examples at the bottom of the file.
25  */
26 struct DigitOptions
27 {
28 	string label;
29 	bool allowEmpty = false;
30 	string message;
31 }
32 
33 class Digit : Validator
34 {
35 
36 	protected DigitOptions _options;
37 
38 	/**
39 	 * constructor
40 	 */
41 	this(DigitOptions options)
42 	{
43 		this._options = options;
44 	}
45 
46 	bool validate(string field = null)
47 	{
48 		bool valid = false;
49 		string value = field;
50 
51 		if (this._options.allowEmpty && value.length == 0) {
52 			return true;
53 		}
54 
55 		return isNumeric(value);
56 	}
57 
58 
59 	/**
60 	 * Executes the validation
61 	 */
62 	override bool validate(Validation validation, string field = null)
63 	{
64 		string value = validation.getValue(field);
65 
66 		if (this._options.allowEmpty && value.length == 0) {
67 			return true;
68 		}
69 
70 		if (!isNumeric(value)) {
71 
72 			string label = (this._options.label.length == 0)
73 							? validation.getLabel(field)
74 							: this._options.label;
75 
76 			string message = this._options.message;
77 
78 			if (message.length == 0) {
79 				message = validation.getDefaultMessage("Digit");
80 			}
81 
82 			validation.appendMessage(new Message(format(message, label), field, "Digit"));
83 			return false;
84 		}
85 
86 		return true;
87 	}
88 
89 }
90 
91 unittest
92 {
93 	// WITH VALIDATOR
94 
95 	auto validation = new Validation();
96 
97 	auto options = DigitOptions();
98 
99 	Digit test = new Digit(options);
100 	assert(test.validate(validation, "test") == false);
101 	assert(test.validate(validation, "1") == true);
102 
103 	test = new Digit(options);
104 	assert(test.validate("jorgefaianca@gmail.") == false);
105 	assert(test.validate("123213123") == true);
106 	assert(test.validate(validation, "321.23") == true);
107 
108 }