added creation of invoice id to create invoice job

app/Jobs/Commands/Moons/MoonRentalInvoiceCreate.php

@@ -106,6 +106,8 @@ class MoonRentalInvoiceCreate implements ShouldQueue
         //Get the list of the moons in a list format
         $listItems = $this->GetMoonList();
 
+        $invoiceId = $this->CreateInvoiceId();
+
         //Build a mail body to be sent to the renter
         $body = "Moon Rent is due for the following moons:<br>";
         foreach($listItems as $item) {
@@ -113,6 +115,7 @@ class MoonRentalInvoiceCreate implements ShouldQueue
         }
         $body .= "The price for the next's month rent is " . number_format($cost, 2, ".", ",") . " ISK<br>";
         $body .= "Please remit payment to Spatial Forces on the 1st should you continue to wish to rent the moon.<br>";
+        $body .= "In the description of the payment put the invoice number of: " . $invoiceId . "<br>";
         $body .= "Sincerely,<br>";
         $body .= "Warped Intentions Leadership<br>";
 
@@ -189,4 +192,23 @@ class MoonRentalInvoiceCreate implements ShouldQueue
         //Return the list
         return $list;
     }
+
+    /**
+     * 
+     */
+    private function CreateInvoiceId() {
+        //Set continue to true as a default.
+        $continue  = true;
+        //Continually get a unique id until one is found where it's not used.
+        do {
+            $invoiceId = uniqid('rmi_', true);
+
+            $count = MoonRentalInvoice::where(['invoice_id' => $invoiceId])->count();
+            if($count == 0) {
+                $continue = false;
+            }
+        } while ($continue == true);
+        
+        return $invoiceId;
+    }
 }

database/migrations/2020_05_09_171338_create_alliance_moon_rental_invoices_table.php

@@ -16,11 +16,12 @@ class CreateAllianceMoonRentalInvoicesTable extends Migration
         if(!Schema::hasTable('alliance_moon_rental_invoices')) {
             Schema::create('alliance_moon_rental_invoices', function (Blueprint $table) {
                 $table->unsignedBigIncrements('id');
+                $table->string('invoice_id')->unique();
                 $table->unsignedBigInteger('character_id');
                 $table->string('character_name');
                 $table->unsignedBigInteger('corporation_id');
                 $table->string('corporation_name');
-                $table->text('rental_moons');
+                $table->text('rental_moons')->nullalbe();
                 $table->decimal('invoice_amount', 17, 2);
                 $table->dateTime('due_date');
                 $table->enum('paid', ['Yes', 'No'])->default('No');
@@ -31,9 +32,8 @@ class CreateAllianceMoonRentalInvoicesTable extends Migration
         if(!Schema::hasTable('alliance_moon_rental_payments')) {
             Schema::create('alliance_moon_rental_payments', function (Blueprint $table) {
                 $table->unsignedBigIncrements('id');
-                $table->unsignedBigInteger('invoice_id');
+                $table->string('invoice_id')->unique();
                 $table->decimal('payment_amount');
-                $table->unsignedBigInteger('reference_id');
                 $table->timestamps();
             });
         }