[Skip to main content](#vessel-content) # Custom Field Validation ## - **[slittle](/forum/user/33192-slittle "View slittle's Profile")** - [![slittle's Avatar](https://www.hikashop.com/media/kunena/core/svg/person.svg)](/forum/user/33192-slittle "View slittle's Profile") Topic Author - [ Offline](/forum/user/33192-slittle) Less More - Posts: 8 - Thank you received: 1 - - 12 years 3 months ago [\#165071](#165071) by [slittle](/forum/user/33192-slittle "View slittle's Profile") *[Custom Field Validation](/forum/31-development/869889-custom-field-validation#165071 "-- HikaShop version -- : 2.3.2 -- Joomla version -- : 3.3 -- PHP version -- : 5.4.26 I've seen a few brief discussions about custom validation of custom fields... but none of them have been very helpful thus far. I'm adept at building custom Javascript & php code and have some special validation that needs to be performed on a custom field on the checkout/registration form... I've looked and looked but can't seem to find the proper place to hack in a quick ajax call to the server to validate the field and either permit or prevent the form submitting (and displaying an error message). Suggestions?")* was created by *[slittle](/forum/user/33192-slittle "View slittle's Profile")* -- HikaShop version -- : 2.3.2 -- Joomla version -- : 3.3 -- PHP version -- : 5.4.26 I've seen a few brief discussions about custom validation of custom fields... but none of them have been very helpful thus far. I'm adept at building custom Javascript & php code and have some special validation that needs to be performed on a custom field on the checkout/registration form... I've looked and looked but can't seem to find the proper place to hack in a quick ajax call to the server to validate the field and either permit or prevent the form submitting (and displaying an error message). Suggestions? Please [Log in](/login?return=aHR0cHM6Ly93d3cuaGlrYXNob3AuY29tL2ZvcnVtLzMxLWRldmVsb3BtZW50Lzg2OTg4OS1jdXN0b20tZmllbGQtdmFsaWRhdGlvbj90bXBsPW1hcmtkb3du) or [Create an account](/component/users/registration?Itemid=101) to join the conversation. - **[Mohamed Thelji](/forum/user/6861-mohamed-thelji "View Mohamed Thelji's Profile")** - [![Mohamed Thelji's Avatar](https://www.hikashop.com/media/kunena/avatars/resized/size144/users/avatar6861.png)](/forum/user/6861-mohamed-thelji "View Mohamed Thelji's Profile") - [ Offline](/forum/user/6861-mohamed-thelji) Less More - Posts: 12953 - Thank you received: 1778 - - - 12 years 3 months ago [\#165078](#165078) by [Mohamed Thelji](/forum/user/6861-mohamed-thelji "View Mohamed Thelji's Profile") Replied by *[Mohamed Thelji](/forum/user/6861-mohamed-thelji "View Mohamed Thelji's Profile")* on topic *[Custom Field Validation](/forum/31-development/869889-custom-field-validation#165078 "-- HikaShop version -- : 2.3.2 -- Joomla version -- : 3.3 -- PHP version -- : 5.4.26 I've seen a few brief discussions about custom validation of custom fields... but none of them have been very helpful thus far. I'm adept at building custom Javascript & php code and have some special validation that needs to be performed on a custom field on the checkout/registration form... I've looked and looked but can't seem to find the proper place to hack in a quick ajax call to the server to validate the field and either permit or prevent the form submitting (and displaying an error message). Suggestions?")* Hello, Can you tell me what kind of custom field you want to use and how do you exactly want to edit it ? Please [Log in](/login?return=aHR0cHM6Ly93d3cuaGlrYXNob3AuY29tL2ZvcnVtLzMxLWRldmVsb3BtZW50Lzg2OTg4OS1jdXN0b20tZmllbGQtdmFsaWRhdGlvbj90bXBsPW1hcmtkb3du) or [Create an account](/component/users/registration?Itemid=101) to join the conversation. - **[slittle](/forum/user/33192-slittle "View slittle's Profile")** - [![slittle's Avatar](https://www.hikashop.com/media/kunena/core/svg/person.svg)](/forum/user/33192-slittle "View slittle's Profile") Topic Author - [ Offline](/forum/user/33192-slittle) Less More - Posts: 8 - Thank you received: 1 - - 12 years 3 months ago [\#165187](#165187) by [slittle](/forum/user/33192-slittle "View slittle's Profile") Replied by *[slittle](/forum/user/33192-slittle "View slittle's Profile")* on topic *[Custom Field Validation](/forum/31-development/869889-custom-field-validation#165187 "-- HikaShop version -- : 2.3.2 -- Joomla version -- : 3.3 -- PHP version -- : 5.4.26 I've seen a few brief discussions about custom validation of custom fields... but none of them have been very helpful thus far. I'm adept at building custom Javascript & php code and have some special validation that needs to be performed on a custom field on the checkout/registration form... I've looked and looked but can't seem to find the proper place to hack in a quick ajax call to the server to validate the field and either permit or prevent the form submitting (and displaying an error message). Suggestions?")* It's a simple text field (a number actually) into which a new user will enter a number... I need to query the database before the form is submitted to ensure that number exists in a particular table. If it does not I need to prevent Hikashop from processing the registration form and creating the new user/order until the user enters a valid number. Please [Log in](/login?return=aHR0cHM6Ly93d3cuaGlrYXNob3AuY29tL2ZvcnVtLzMxLWRldmVsb3BtZW50Lzg2OTg4OS1jdXN0b20tZmllbGQtdmFsaWRhdGlvbj90bXBsPW1hcmtkb3du) or [Create an account](/component/users/registration?Itemid=101) to join the conversation. - **[nicolas](/forum/user/63-nicolas "View nicolas's Profile")** - [![nicolas's Avatar](https://www.hikashop.com/media/kunena/avatars/resized/size144/users/avatar63.png)](/forum/user/63-nicolas "View nicolas's Profile") - [ Offline](/forum/user/63-nicolas) Less More - Posts: 86289 - Thank you received: 14265 - - 12 years 3 months ago [\#165296](#165296) by [nicolas](/forum/user/63-nicolas "View nicolas's Profile") Replied by *[nicolas](/forum/user/63-nicolas "View nicolas's Profile")* on topic *[Custom Field Validation](/forum/31-development/869889-custom-field-validation#165296 "-- HikaShop version -- : 2.3.2 -- Joomla version -- : 3.3 -- PHP version -- : 5.4.26 I've seen a few brief discussions about custom validation of custom fields... but none of them have been very helpful thus far. I'm adept at building custom Javascript & php code and have some special validation that needs to be performed on a custom field on the checkout/registration form... I've looked and looked but can't seem to find the proper place to hack in a quick ajax call to the server to validate the field and either permit or prevent the form submitting (and displaying an error message). Suggestions?")* Hi, So the field is of the table "user" or "address" I guess. In that case, you want to edit the file "registration" (or "registration_bootstrap" if you have turned on the "use bootstrap option of the configuration) via the menu Display>Views and change the line: echo $this->cartClass->displayButton($registerButtonName,'register',$this->params,hikashop_currentUrl(),' hikashopSubmitForm(\''.$this->form_name.'\'); return false;','id="hikashop_register_form_button"'); You'll want to put the call to hikashopSubmitForm(\''.$this->form_name.'\'); in a if statement with your ajax check so that the form is sent only if your check is valid. Please [Log in](/login?return=aHR0cHM6Ly93d3cuaGlrYXNob3AuY29tL2ZvcnVtLzMxLWRldmVsb3BtZW50Lzg2OTg4OS1jdXN0b20tZmllbGQtdmFsaWRhdGlvbj90bXBsPW1hcmtkb3du) or [Create an account](/component/users/registration?Itemid=101) to join the conversation. 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