Validation

Validation with Regular Expressions

Ragic provides a simple validation mechanism via regular expressions. If you know how to write regular expressions, you can create a regular expression to check if the user input is valid.

If you are not familiar with regular expressions, you can still choose a validation template from the sample box or apply conditional formulas as workaround.

Validating Unique Attributes

A common validation that our users usually need is to make sure that the field value stored has not been stored in the database before. This requires a backend database check, which cannot be done by regular expressions. You can simply go to the field configurations under the Basic tab in Field Settings, and check the Unique attribute. Ragic will then check if the value that the user has entered is unique. If not, the value will not be stored and the user will be prompted for the duplication.

Validating the Number of Characters Inputted

You can use a regular expression in the validation tab for your field to validate the input.

The regular expression

^.{6,7}$

validates that the field has a minimum of 6 characters and a maximum of 7.

Other than changing the set of numbers, you can also set it to a maximum, such as ^.{0,7}$ (a maximum of 7 characters), or a minimum, ^.{6,}$ (a minimum of 6 characters).

Validating the Language of Input

You can ensure the user fills in a field in a certain language by using the validation feature by adding a regular expression that checks the input to be in a certain language code range.

For example, if you want to make sure the language is in Cyrillic, you can use:

[\u0400-\u04FF\u0500-\u052F]

Below is a list of language code ranges for each language. You can also go to this link for more references.