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NEW: Add ?showqueries=backtrace

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This variant of showqueries will include a backtrace after each query.
This is extremely verbose but can be helpful when diagnosing where
queries have come from.

This is something that I have frequently added as a local hack on my
environment, I figured that exposing it as a formal feature would be
useful.
This commit is contained in:
Sam Minnee 2018-09-19 14:28:40 +12:00
parent 605ea158e8
commit 40dde226fd
2 changed files with 8 additions and 1 deletions
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1
docs/en/02_Developer_Guides/07_Debugging/02_URL_Variable_Tools.md
View File

@ -41,6 +41,7 @@ session variables, used templates and much more.
| URL Variable | | Values | | Description |
| ------------ | | --------- | | ----------- |
| showqueries | | 1|inline | | List all SQL queries executed, the `inline` option will do a fudge replacement of parameterised queries |
| showqueries | | 1|backtrace | | List all SQL queries executed, the `backtrace` option will do a fudge replacement of parameterised queries *and* show a backtrace of every query |
| previewwrite | | 1 | | List all insert / update SQL queries, and **don't** execute them. Useful for previewing writes to the database. |
## Security Redirects

8
src/ORM/Connect/Database.php
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@ -11,6 +11,7 @@ use SilverStripe\ORM\Queries\SQLUpdate;
use SilverStripe\ORM\Queries\SQLInsert;
use BadMethodCallException;
use Exception;
use SilverStripe\Dev\Backtrace;
/**
* Abstract database connectivity class.
@ -212,11 +213,16 @@ abstract class Database
$result = $callback($sql);
$endtime = round(microtime(true) - $starttime, 4);
// replace parameters as closely as possible to what we'd expect the DB to put in
if (strtolower($_REQUEST['showqueries']) == 'inline') {
if (in_array(strtolower($_REQUEST['showqueries']), ['inline', 'backtrace'])) {
$sql = DB::inline_parameters($sql, $parameters);
}
$queryCount = sprintf("%04d", $this->queryCount);
Debug::message("\n$queryCount: $sql\n{$endtime}s\n", false);
// Show a backtrace if ?showqueries=backtrace
if ($_REQUEST['showqueries'] === 'backtrace') {
Backtrace::backtrace();
}
return $result;
} else {
return $callback($sql);