How to use ###is_error### markers
These markers allow you to display additional content if an error occurred for each form field or globally.
In your HTML template you can add these markers:
###is_error### ###is_error_[fieldname]###
Formhandler will search for content to replace these markers in the translation file and in the TypoScript setup.
In the translation file enter the values like:
<label index="is_error_field1">Error occurred in field1!</label>
or enter a default message for all fields:
<label index="is_error_default">Error occurred!</label>
or enter a global message used for the marker ###is_error###:
<label index="is_error">Error occurred!</label>
A possible TypoScript configuration looks like this:
plugin.Tx_Formhandler.settings {
isErrorMarker {
global = Global message if an error occurred (filled into ###is_error###)
default = class=”error” (filled into ###is_error_[fieldname]###
field1 = TEXT
field1.value = Some message (filled into ###is_error_field1###)
}
}
Example:
###error_firstname### <div class=”row” ###is_error_firstname###> <label for=”firstname”>###LLL:firstname###</label> <input type=”text” name=”formhandler[firstname]” value=”###value_firstname” /> </div>
Using this you can display an error message like “Firstname is missing” and add a CSS class to the surrounding DIV to highlight the row containing the error.