Business Rule Help needed!!

[Snow Angel]

Can someone help me fix this BR so it shows the attachment file ext.

Currently its creating (required) prefix by picking up the value from a field, and creating a new file name as prefix + hyphen + file name. But for some reason not picking up the file extension.

Requirement : The total name character limit is 100 i.e prefix + filename.ext 

Business Rule:

(function executeRule(current, previous /*null when async*/ ) {
var auditGR = new GlideRecord(current.table_name);
auditGR.get(current.table_sys_id);
if (auditGR.u_pbc_id) {
current.file_name = auditGR.u_pbc_id + " - " + current.file_name;
}
})(current, previous);

This is what it shows currently in the activity, its missing the file ext.

[Snow Angel]

@Community Alums 

Hello Satish,

I really appreciate your prompt help. I've made the suggested changes, the ext. shows but now its missing the required prefix i.e the value from the "u_pbc_id" field followed by a hyphen.

What can we do here so the prefix also shows up along with file name and its extension.

[Community Alums]

Hi @Snow Angel 
can you please share me your latest code. also what is the field type of your prefix field?

[Snow Angel]

@Community Alums 

Below is the latest code.

(function executeRule(current, previous /*null when async*/ ) {

    var auditGR = new GlideRecord(current.getTableName());

    auditGR.get(current.sys_id);

    if (auditGR.u_pbc_id) {

        // Get the current file name and extension

        var fileName = current.file_name;

        var fileExtension = '';

        // Extract the file extension

        if (fileName.lastIndexOf('.') !== -1) {

            fileExtension = fileName.substring(fileName.lastIndexOf('.'));

            fileName = fileName.substring(0, fileName.lastIndexOf('.'));

        }

        // Create the new file name with prefix and extension

        current.file_name = auditGR.u_pbc_id + ' - ' + fileName + fileExtension;

        // Ensure the total length is within the character limit

        if (current.file_name.length > 100) {

            var maxFileNameLength = 100 - auditGR.u_pbc_id.length - fileExtension.length - 4; // 4 for " - "

            fileName = fileName.substring(0, maxFileNameLength);

            current.file_name = auditGR.u_pbc_id + ' - ' + fileName + fileExtension;

        }

    }

})(current, previous);

[Community Alums]

@Snow Angel what is the field type of your prefix field?

[Snow Angel]

@Community Alums 

its a string filed, manually entered, the format is xxx-xxx for eg OIG-001-Filename.ext