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 one to validate user input.

Select the field from Design Mode, navigate to Field Settings in the left sidebar, and click on the Validation tab. You can then enter regular expressions in the Validation field.

If you are unfamiliar with regular expressions, you can choose a validation template from the sample box or apply conditional formulas as a workaround.

When users enter an incorrect value in this field, an error message will pop up, and the record cannot be saved.

Additionally, you can customize the error message below.

AI Regular Expressions Generator

You can ask AI to help you create regular expressions (regex). Your requirements should be concise and clear. For example, if you want to restrict the field value to have the first 3 characters as numbers and the last 3 characters as letters, you can specify it as "First 3 characters are numbers, last 3 characters are letters".

Click Generate Regex, it will automatically create a regular expression. Then, by clicking Copy to Validation Field, you can copy the syntax into the Validation field.

After finishing the configuration, remember to save the design.

Validating the Number of Characters

You can use a regular expression in the validation tab to check the number of characters entered.

For example, the regular expression "^.{6,7}$" will validate that the input in this field has a minimum of 6 characters and a maximum of 7.

You may 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 users fill in a field in a specific language by using the validation with a regular expression that checks the input against a language code range.

For example, if you want to ensure the input 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.