Add PostgreSQL support

Update CHANGELOG.md
Update README.md

CHANGELOG.md

@@ -2,6 +2,10 @@
 
 All notable changes to `laravel-metrics` will be documented in this file
 
+## 2.8.0
+
+- Add PostgreSQL support
+
 ## 2.7.4
 
 - Add "from" period to set custom startDate end use the current date as endDate for between period

README.md

@@ -11,7 +11,7 @@ composer require eliseekn/laravel-metrics
 ```
 
 ## Features
-- MySQL support
+- MySQL and PostgreSQL support
 - Verbose query builder
 - Custom columns and table definition
 - Days and months translation with Carbon
@@ -120,11 +120,11 @@ Order::metrics()
 ### Types of periods
 ```php
 LaravelMetrics::query(...)
-    ->byDay(int $count = 0) // or
-    ->byWeek(int $count = 0) // or
-    ->byMonth(int $count = 0) // or
-    ->byYear(int $count = 0) // or
-    ->between(string $startDate, string $endDate, string $dateIsoFormat)
+    ->byDay(int $count = 0) //or
+    ->byWeek(int $count = 0) //or
+    ->byMonth(int $count = 0) //or
+    ->byYear(int $count = 0) //or
+    ->between(string $startDate, string $endDate, string $dateIsoFormat) //or
     ->from(string $date, string $dateIsoFormat)
 ```
 
@@ -158,17 +158,17 @@ LaravelMetrics::query(...)
 ### Types of aggregates
 ```php
 LaravelMetrics::query(...)
-    ->count(string $column = 'id') // or
-    ->average(string $column) // or
-    ->sum(string $column) // or
-    ->max(string $column) // or
+    ->count(string $column = 'id') //or
+    ->average(string $column) //or
+    ->sum(string $column) //or
+    ->max(string $column) //or
     ->min(string $column)
 ```
 
 ### Types of data
 ```php
 LaravelMetrics::query(...)
-    ->trends() // or
+    ->trends() //or
     ->metrics()
 ```
 

src/DatesFunctions.php

@@ -55,12 +55,31 @@ protected function getMonthPeriod(): array
 
     protected function formatPeriod(string $period): string
     {
+        $driver = $this->builder->getConnection()->getDriverName();
+
+        if ($driver === 'mysql') {
+            return match ($period) {
+                Period::DAY->value => "weekday($this->dateColumn)",
+                Period::WEEK->value => "week($this->dateColumn)",
+                Period::MONTH->value => "month($this->dateColumn)",
+                default => "year($this->dateColumn)",
+            };
+        }
+
+        if ($driver === 'pgsql') {
+            return match ($period) {
+                Period::DAY->value => "EXTRACT(DOW FROM $this->dateColumn)",
+                Period::WEEK->value => "EXTRACT(WEEK FROM $this->dateColumn)",
+                Period::MONTH->value => "EXTRACT(MONTH FROM $this->dateColumn)",
+                default => "EXTRACT(YEAR FROM $this->dateColumn)",
+            };
+        }
+
         return match ($period) {
-            Period::DAY->value => "weekday($this->dateColumn)",
-            Period::WEEK->value => "week($this->dateColumn)",
-            Period::MONTH->value => "month($this->dateColumn)",
-            Period::YEAR->value => "year($this->dateColumn)",
-            default => '',
+            Period::DAY->value => "strftime('%w', $this->dateColumn)",
+            Period::WEEK->value => "strftime('%W', $this->dateColumn)",
+            Period::MONTH->value => "strftime('%m', $this->dateColumn)",
+            default => "strftime('%Y', $this->dateColumn)",
         };
     }
 

src/LaravelMetrics.php

@@ -114,6 +114,7 @@ public function byYear(int $count = 0): self
     {
         return $this->by(Period::YEAR->value, $count);
     }
+
     public function between(string $start, string $end, string $dateIsoFormat = 'YYYY-MM-DD'): self
     {
         $this->checkDateFormat([$start, $end]);