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README.md

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+# Slow Query Logger for Laravel
+
+[![Latest Stable Version](https://poser.pugx.org/rokde/laravel-slow-query-logger/v/stable.svg)](https://packagist.org/packages/rokde/laravel-slow-query-logger) [![Latest Unstable Version](https://poser.pugx.org/rokde/laravel-slow-query-logger/v/unstable.svg)](https://packagist.org/packages/rokde/laravel-slow-query-logger) [![License](https://poser.pugx.org/rokde/laravel-slow-query-logger/license.svg)](https://packagist.org/packages/rokde/laravel-slow-query-logger) [![Total Downloads](https://poser.pugx.org/rokde/laravel-slow-query-logger/downloads.svg)](https://packagist.org/packages/rokde/laravel-slow-query-logger)
+
+## Quickstart
+
+```
+composer require rokde/laravel-slow-query-logger
+```
+
+Add to `providers` in `config/app.php`:
+
+```
+Rokde\LaravelSlowQueryLogger\LaravelSlowQueryLoggerProvider::class,
+```
+
+## Installation
+
+Add to your composer.json following lines
+
+	"require": {
+		"rokde/laravel-slow-query-logger": "~0.0"
+	}
+
+Add `Rokde\LaravelSlowQueryLogger\LaravelSlowQueryLoggerProvider::class,` to `providers` in `config/app.php`.
+
+Run `php artisan vendor:publish --provider="Rokde\LaravelSlowQueryLogger\LaravelSlowQueryLoggerProvider"`
+
+## Configuration
+
+### `time-to-log`
+
+Only log queries longer than this value in microseconds.
+
+### `environments`
+
+Set the enabled environments to log slow queries.
+
+### `log-level`
+
+Set the log-level for logging the slow queries.
+
+## Usage
+
+Nothing to do after adding to `/config/app.php`. Watch your logs.

composer.json

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+{
+	"name": "rokde/laravel-slow-query-logger",
+	"description": "Slow Query Logger for Laravel",
+	"license": "MIT",
+	"authors": [
+		{
+			"name": "Robert Kummer",
+			"email": "[email protected]"
+		}
+	],
+	"autoload": {
+		"psr-4": {
+			"Rokde\\LaravelSlowQueryLogger\\": "src/"
+		}
+	},
+	"minimum-stability": "stable",
+	"require": {
+		"php": ">=5.5.9",
+		"illuminate/support": "5.2.*",
+		"illuminate/database": "5.2.*"
+	}
+}

config/slow-query-logger.php

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+<?php
+
+return [
+    /**
+     * log all sql queries that are slower than X seconds
+     * laravel measures at a precision of 2 digits, so 0.7134 will be logged as 0.71
+     */
+    'time-to-log' => 0.7,
+
+    /**
+     * log when you are on these environments
+     */
+    'environments' => [
+        'local',
+    ],
+
+    /**
+     * level to log
+     */
+    'log-level' => 'debug',
+];

src/LaravelSlowQueryLoggerProvider.php

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+<?php
+
+namespace Rokde\LaravelSlowQueryLogger;
+
+use Illuminate\Contracts\Events\Dispatcher;
+use Illuminate\Database\Events\QueryExecuted;
+use Illuminate\Log\Writer;
+use Illuminate\Support\ServiceProvider;
+
+class LaravelSlowQueryLoggerProvider extends ServiceProvider
+{
+    /**
+     * Bootstrap the application services.
+     * @param Dispatcher $events
+     * @param Writer $log
+     */
+    public function boot(Dispatcher $events, Writer $log)
+    {
+        $this->publishes([
+            __DIR__ . '/../config/slow-query-logger.php' => config_path('slow-query-logger.php'),
+        ], 'config');
+
+        $this->setupListener($events, $log);
+    }
+
+    /**
+     * Register the application services.
+     *
+     * @return void
+     */
+    public function register()
+    {
+        $this->mergeConfigFrom(
+            __DIR__ . '/../config/slow-query-logger.php', 'slow-query-logger'
+        );
+    }
+
+    /**
+     * setting up listener
+     *
+     * @param Dispatcher $events
+     * @param Writer $log
+     */
+    private function setupListener(Dispatcher $events, Writer $log)
+    {
+        $environments = config('slow-query-logger.environments', []);
+
+        if (!$this->app->environment($environments)) {
+            return;
+        }
+
+        $events->listen(QueryExecuted::class, function (QueryExecuted $queryExecuted) use ($log) {
+            $sql = $queryExecuted->sql;
+            $bindings = $queryExecuted->bindings;
+            $time = $queryExecuted->time;
+
+            $logSqlQueriesSlowerThan = config('slow-query-logger.time-to-log');
+            if ($logSqlQueriesSlowerThan < 0 || $time < $logSqlQueriesSlowerThan) {
+                return;
+            }
+
+            $level = config('slow-query-logger.log-level', 'debug');
+            try {
+                foreach ($bindings as $val) {
+                    $sql = preg_replace('/\?/', "'{$val}'", $sql, 1);
+                }
+
+                $log->log($level, $time . '  ' . $sql);
+            } catch (\Exception $e) {
+                //  be quiet on error
+            }
+        });
+    }
+}