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+--- Thread: Validation for duplicated on form (/showthread.php?tid=87898)
Validation for duplicated on form - pippuccio76 - 06-16-2023
Hi i have a form with 20 serial number (serial_1 , serial_2 etc) , can i check with custom validation if there are duplicate in form ?
RE: Validation for duplicated on form - JustJohnQ - 06-16-2023
If you create an array of your serial numbers like serial[1], serial[2] etc. you can use the array_unique function to remove any duplicates from this array. Then count the number of items in the original array and compare it to the number of items in the array_unique array. If it differs, you know there were duplicates
RE: Validation for duplicated on form - pippuccio76 - 06-16-2023
(06-16-2023, 01:26 AM)JustJohnQ Wrote: If you create an array of your serial numbers like serial[1], serial[2] etc. you can use the array_unique function to remove any duplicates from this array. Then count the number of items in the original array and compare it to the number of items in the array_unique array. If it differs, you know there were duplicates
Sorry but only serial_1 is required...
RE: Validation for duplicated on form - JustJohnQ - 06-16-2023
Then I don’t understand your question. What do you want to check for duplicates?
Validation of serial_1 is a simple validation. Checking all serials for a duplicate value is what I gave a suggestion for.
RE: Validation for duplicated on form - pippuccio76 - 06-18-2023
(06-16-2023, 02:38 PM)JustJohnQ Wrote: Then I don’t understand your question. What do you want to check for duplicates?
Validation of serial_1 is a simple validation. Checking all serials for a duplicate value is what I gave a suggestion for.
Yes , i want control if there are a duplicate in one or more serial.... I can do it by js but i want also server side
RE: Validation for duplicated on form - JustJohnQ - 06-19-2023
array_unique is a php function. A custom rule like this will probably work:
See: https://codeigniter4.github.io/userguide/libraries/validation.html#creating-custom-rules
PHP Code:
<?php
class MyRules
{
public function duplicates($serialarray): bool
{
$originalLength = count($serialArray);
$duplicateArray = array_unique($serialArray);
$duplicateLength = count($duplicateArray);
if ($originalLength <> $duplicateLength){
return 0;
}else{
return 1;
}
}
RE: Validation for duplicated on form - pippuccio76 - 06-22-2023
(06-19-2023, 04:02 AM)JustJohnQ Wrote: array_unique is a php function. A custom rule like this will probably work:
See: https://codeigniter4.github.io/userguide/libraries/validation.html#creating-custom-rules
PHP Code:<?php
class MyRules
{
public function duplicates($serialarray): bool
{
$originalLength = count($serialArray);
$duplicateArray = array_unique($serialArray);
$duplicateLength = count($duplicateArray);
if ($originalLength <> $duplicateLength){
return 0;
}else{
return 1;
}
}
How can i pass in validation the array with every serial of form ?
RE: Validation for duplicated on form - JustJohnQ - 06-22-2023
See https://codeigniter.com/user_guide/libraries/validation.html#setting-rules-for-array-data