first commit

README.md

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+# Laravel ID Generator
+Easy way to generate custom ID from database table in Laravel framework
+
+# Documentation
+Get documentation on [laravelarticle.com](https://laravelarticle.com/laravel-custom-id-generator)

composer.json

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+{
+    "name": "haruncpi/laravel-id-generator",
+    "description": "Easy way to generate custom ID in laravel framework",
+    "license": "cc-by-4.0",
+    "authors": [
+        {
+            "name": "Md.Harun-Ur-Rashid",
+            "email": "[email protected]"
+        }
+    ],
+    "minimum-stability": "dev",
+    "prefer-stable": true,
+    "require": {
+        "php": ">=5.6.0",
+        "laravel/framework": "5.*"
+    },
+    "extra": {
+        "laravel": {
+            "providers": [
+                "Haruncpi\\IdGenerator\\IdGeneratorServiceProvider"
+            ]
+        }
+    }
+}

src/IdGenerator.php

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+<?php
+
+namespace Haruncpi\IdGenerator;
+
+use DB, Exception;
+
+class IdGenerator
+{
+
+    public static function generate($configArr)
+    {
+        if (!array_key_exists('table', $configArr) || $configArr['table'] == '') {
+            throw new Exception('Must need a table name');
+        }
+        if (!array_key_exists('length', $configArr) || $configArr['length'] == '') {
+            throw new Exception('Must specify the length of ID');
+        }
+        if (!array_key_exists('prefix', $configArr) || $configArr['prefix'] == '') {
+            throw new Exception('Must specify a prefix of your ID');
+        }
+
+        if (array_key_exists('where', $configArr)) {
+            if (is_string($configArr['where']))
+                throw new Exception('where clause must be an array, you provided string');
+            if (!count($configArr['where']))
+                throw new Exception('where clause must need at least an array');
+        }
+
+
+        $prefixLength = strlen($configArr['prefix']);
+        $idLength = $configArr['length'] - $prefixLength;
+        $whereString = '';
+
+        if (array_key_exists('where', $configArr)) {
+            $whereString .= " WHERE ";
+            foreach ($configArr['where'] as $row) {
+                $whereString .= $row[0] . "=" . $row[1] . " AND ";
+            }
+        }
+
+        $whereString = rtrim($whereString, 'AND ');
+
+
+        $total = DB::select("SELECT count(id) total FROM " . $configArr['table'] . $whereString . "");
+
+        if ($total[0]->total) {
+            $maxId = DB::select("SELECT MAX(SUBSTR(id," . ($prefixLength + 1) . "," . $idLength . ")) maxId 
+                            FROM " . $configArr['table'] . $whereString . "");
+            $maxId = $maxId[0]->maxId + 1;
+
+            return $configArr['prefix'] . str_pad($maxId, $idLength, '0', STR_PAD_LEFT);
+        } else {
+            return $configArr['prefix'] . str_pad(1, $idLength, '0', STR_PAD_LEFT);
+        }
+    }
+}

src/IdGeneratorServiceProvider.php

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+<?php namespace Haruncpi\IdGenerator;
+
+use Illuminate\Support\ServiceProvider;
+
+class IdGeneratorServiceProvider extends ServiceProvider
+{
+
+    public function boot()
+    {
+
+    }
+
+
+    public function register()
+    {
+        $this->app->make('Haruncpi\IdGenerator\IdGenerator');
+    }
+
+}