function _uc_file_number_accumulate_equation in Ubercart 6.2

Same name and namespace in other branches

1. 8.4 uc_file/uc_file.module \_uc_file_number_accumulate_equation()
2. 7.3 uc_file/uc_file.module \_uc_file_number_accumulate_equation()

Accumulates numeric limits (as of now, download and address).

We follow a couple simple rules here...

If proposing no limit, it always overrides current.

If proposal and current are limited, then accumulate, but only if it wasn't a forced overwrite. (Think on the user account admin page where you can set a download limit to '2'... you wouldn't then next time set it to '4' and expect it to accumulate to '6'. You'd expect it to overwrite with your '4'.)

If current is unlimited, then a limited proposal will only overwrite in the case of the forced overwrite explained above.

1 call to _uc_file_number_accumulate_equation()

_uc_file_accumulate_limits in uc_file/uc_file.module

Accumulates limits and store them to the file_user array.

File

uc_file/uc_file.module, line 1121

Code

function _uc_file_number_accumulate_equation(&$current, $proposed, $force_overwrite) {

  // Right side 'unlimited' always succeeds.
  if (!$proposed) {
    $current = NULL;
  }
  elseif ($current && $proposed) {

    // We don't add forced limits...
    if ($force_overwrite) {
      $current = $proposed;
    }
    else {
      $current += $proposed;
    }
  }
  elseif ($force_overwrite && !$current && $proposed) {
    $current = $proposed;
  }
}