Questions tagged [validation]

Validation is used to check data to make sure it fits whatever required specifications are set for it.

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74 views

Validating a User via Save Method

I'm fairly new to object oriented programming here and am trying to get my head around the best way to go about creating Users and Validating them in the system. My first attempt is below and my main ...
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1answer
230 views

Date validation in Java

I'm learning Java, and would really appreciate any tips on how to improve this code. It's just a simple date validation class. ...
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1answer
593 views

Server side form validation library

Have I followed best practices for PHP development, or can this class be improved? GitHub ...
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2answers
150 views

Validation class

Can someone help me furnish my PHP validation class? I want to reduce its size and make it easier to use. ...
4
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2answers
267 views

TextField Validation for Teleport Feature in Game

I've implemented a teleport feature for my game and I would like some feedback on the way that I validate the user input. I am using the libGDX library. When the player clicks the Teleport Menu ...
3
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2answers
245 views

Verbose mailing function

I have multiple forms that send an email. As of this moment I have 3 forms that send mail and vary only by the number of inputs: One requires just an email Another requires a name and email Another ...
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5answers
5k views

Reserving seats in a movie theater

I'm writing a C program to reserve seats in a movie theater. I am validating the selection of seats: ...
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1answer
25k views

Click event function that checks to see if form field is valid

What I'm building is a URL builder. A marketing person inputs a URL and can test that URL to see if it's valid, then they select a demand channel and then hit 'Generate Campaign URL'. I've omitted the ...
2
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2answers
8k views

Input and Validate Dates

Question: Write a function that accepts integer values for day, month and year and returns them in a valid format. If the day is above 30, then convert it to 30. If the month is above 12 then ...
2
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1answer
5k views

User input function keep looping until valid filename entered

The following function is basically asking the user to input a file name for a file that the calling program is going to do something with. If the user enters an invalid file name, I want the program ...
3
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2answers
770 views

PHP contact form

I recently had my site hacked, with the main index file being overwritten (nothing else was touched). I'm assuming they hijacked my form input. Are there any vulnerabilities in the code or does this ...
2
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3answers
204 views

ADT for a TVM calculator

I wanted to get some criticism for the below ADT. This is just a basic ADT that will be fed into a TVM calculator. Main purpose is to have it initialized and correct for input errors. Full disclosure:...
4
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1answer
265 views

Validating JavaScript origins

I need to write a function in Python that makes sure the user entered a valid JavaScript origin. If I understand it correctly, the origin includes the scheme, hostname and port (port and scheme might ...
4
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1answer
1k views

Luhn algorithm MS-SQL

This a solution Luhn algorithm for credit validation. This algorithm is a basic one inspired by wikipedia. I mean no check for length, type, and so on. You can enhance the base code as you want it to ...
3
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1answer
630 views

Haskell Luhn Algorithm

Trying to get to grips with Haskell. The problem is taken from here. ...
3
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1answer
372 views

A User class for visitors to register and log in to a site

I'm just looking for some feedback on my User class. The class is designed to handle users being able to register, login, and logout of the site. I'll be using it in conjunction with a forum I'm also ...
2
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1answer
487 views

Sudoku validator

I've decided to learn some more Haskell writing a Sudoku validator, the function checkSudoku outputs True if the Sudoku is valid and False if it is not. I did not ...
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1answer
3k views

Class-based user input validation

Having contributed to this Community Wiki on StackOverflow regarding validating user input, I thought I'd finally sit down and write something more robust to do these kinds of tasks. I wanted ...
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1answer
379 views

Checking that a filename does not end with “Com.js”

I'm fairly new to JavaScript and I wonder if there is a way to write this function shorter and better? ...
5
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2answers
829 views

Validating config files and separating back-end from front-end

I'm writing a simple script which will search a source directory for certain types of files and move them to a destination directory. I'm using it as an opportunity to practice writing some "defensive"...
3
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3answers
32k views

Check whether a date is a valid future date

I'm looking to increase the conciseness of this code. I realize that I can use Joda (or Java 8's new date API), but if I were to keep this to just Java 7, any suggestions? (I care less about ...
2
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2answers
112 views

Validate and Add Service Provider/Location in C#

I have a button that will validate the textbox for the service provider and the dropdown list for the locations. I have 3 tables: Locations, Service_Providers, and Service_Providers_Locations with a ...
4
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1answer
525 views

HTML5/CSS live Validation w/jQuery

I've been working on a live form validation project, initially I intended on finding a way to solely use CSS for said validation but it quickly became apparent I would require some jQuery to get it to ...
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0answers
83 views
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1answer
129 views

A simple Ruby EmailAddress class

I wrote this short, plain Ruby lib to handle email address validation inside and outside of Rails applications, and I would like to know what you think. ...
3
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2answers
276 views

Validator part 2

This is a follow up to: Validating individual properties and whole items I have a custom class I've written which allows me to validate individual properties of items, without firing validation ...
3
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1answer
203 views

Check secure image upload

I want to upload images to server from browser window. I'm using this function for image upload. Images are uploaded by GD library. What is your opinion of this code? Is there still a way to upload a ...
4
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1answer
73 views

Data-checking class supporting letters

I'm starting to learn OOP with PHP, and all I've learned so far is just by searching and reading. So I have this need to check input data for certain things like min of chars, max of chars, spaced or ...
3
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1answer
5k views

Validating individual properties and whole items

I have a custom class I've written which allows me to validate individual properties of items, without firing validation errors on other properties. This allows me to individually validate what my ...
3
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2answers
92 views

Removing synchronization from an agent for a trading system

Is there any way to easily remove synchronization from this code, when there is a validation step before acquiring a lock? I tried an ...
6
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2answers
2k views

Calculating the volume of a tetrahedron

Here's my function for calculating the volume of a tetrahedron. I've tried to comment well and perform a few checks on the types of the objects passed to it. Can ...
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1answer
144 views

An easier way to test a valid username

I have the following requirement for valid usernames: Only alphanumeric characters and - Must not start with a - I wrote this regex (on Rubular): ...
6
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3answers
177 views

Constraining data in idiomatic Java

Playing with a simple Java Point class where I would like to constrain the X and Y values to be doubles that must be in the range -10 to 10, inclusive. I've written ...
7
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2answers
43k views

Registration form with validation and error messages

I've been working on a registration form page in jQuery Mobile and I think I'm starting to get it fully complete. What I need feedback on is if I've forgotten anything in terms of accessibility, ...
6
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2answers
323 views

A way to handle integer input

I'm working on simple code that is to read input where: The first line is a number of cases to consider. The next lines are integers separated by a space that will be tested lately. Possible input: ...
3
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1answer
2k views

Flask form validation technique

This is currently the code that I'm using to validate and check for errors in a flask app, where the form fields are coming from a /registration html page: ...
4
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2answers
2k views

Credit card checking

I am practicing test-driven development in Python. Feedback about both the tests and the code is appreciated. I'm using luhn algorithm and regex to check credit card numbers for validity. Here are ...
5
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3answers
1k views

Validating email addresses through temporary mail message

I was given this project and have changed a lot of code on it, now I am going over the code to make sure that I know what everything does and can maintain it efficiently, and to make sure I want my ...
2
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1answer
1k views

Laravel controller for form validation skinny

I'm trying to make controllers skinny as possible. I use repositories for accessing the database and I use Services to do other stuff. In this case, I use it to insert a new post to the database. For ...
7
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4answers
11k views

Calculating a specific entry in a Pascal’s triangle recursively

Our task was to calculate the entry of a Pascal’s triangle with a given row and column recursively. The triangle was specified in a way that the tip of the triangle is ...
4
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4answers
503 views

Validating a Collection of IPv4s

I have a method within a class that validates all proxy addresses are valid on initialization. I've tried to refactor this a bit, but this seems to be the best I can do. Any suggestions and/or tips as ...
2
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1answer
43 views

Sane ranges for DB queries

I have a function that has, as input, a ranges object which may define from, to and ...
2
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1answer
103 views

Validating input against rules

I have created a method that validates inputs based on a set of rules. If an error is found, it is put into an array which can later on be used to display the errors to the user. Below is my code: ...
8
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3answers
248 views

Better card validity check in JS card game

I am writing a card game in Javascript. The game is played with a 32 card deck. When a card is selected to be played by a user, i do a validity check on the server to check whether it matches the ...
5
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3answers
3k views
8
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1answer
9k views

Multi-checkbox validation

I wrote the following custom validation annotation for my project to confirm that at least one checkbox of a group of checkboxes is checked: ...
3
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5answers
639 views

Checking that an entered date is before the current date

I want to write a function which returns true if a selected date is smaller than the current date, else return false. This function is working as expected but I want to know the best possible way to ...
4
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2answers
2k views

Refactoring IEnumerable<ValidationResult>

I have the below code which increases the code complexity. Any way to refactor it? I am trying to refactor the below code so that the CCM can be reduced for the code. i.e code complexity matrix. <...
3
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1answer
113 views

Test if a string is a number

In need for testing if a string is a number which could be a double or integer, I wrote a simple skeleton, which parses a string like this: ...
3
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2answers
629 views

Reservation validation

I got a Reservation model that has reservation_start and reservation_end. Then I have the ...