Survey Question Type Binary Result Mail

This module is an automatic bridge between two survey extensions: one that lets surveys ask for file uploads, and one that emails the answers to the respondent. It changes nothing in the menus; it works behind the scenes when a survey is completed.

When a respondent finishes a survey, the module collects every uploaded file from the answers that were not skipped. If the survey is configured to send the result email and the respondent has an email address, those files are attached to the email. The email itself uses the survey's result email template, or a default one if none is set.

It also adjusts the answer summary shown in the email: file-upload questions are listed separately, showing the file names (for single uploads) or a bullet list of file names (for multiple uploads), while all other question types keep their normal formatting.

A small safeguard temporarily disables the 'send result mail' flag while the standard completion process runs, then re-enables it, so the email is sent only once with the attachments. The module touches survey.user_input and relies on the survey configuration fields send_result_mail and result_mail_template_id.