fix invoice and enrollment fees

app/Models/InvoiceLineModel.php

@@ -1,46 +0,0 @@
-<?php
-
-namespace App\Models;
-
-use CodeIgniter\Model;
-use App\Models\Concerns\SchoolYearAutoFillTrait;
-
-class InvoiceLineModel extends Model
-{
-    use SchoolYearAutoFillTrait;
-
-    protected $table = 'invoice_lines';
-    protected $primaryKey = 'id';
-    protected $returnType = 'array';
-    protected $useTimestamps = false;
-
-    protected $allowedFields = [
-        'invoice_id',
-        'school_year',
-        'line_type',
-        'source_type',
-        'source_id',
-        'active_source_key',
-        'description',
-        'quantity',
-        'unit_amount_cents',
-        'line_amount_cents',
-        'discount_eligible',
-        'calculation_version',
-        'metadata_json',
-        'created_at',
-        'updated_at',
-        'voided_at',
-    ];
-
-    protected $validationRules = [
-        'invoice_id' => 'required|integer',
-        'school_year' => 'required|string|max_length[9]',
-        'line_type' => 'required|max_length[50]',
-        'description' => 'required|max_length[255]',
-        'quantity' => 'required|decimal',
-        'unit_amount_cents' => 'required|integer',
-        'line_amount_cents' => 'required|integer',
-        'discount_eligible' => 'required|in_list[0,1]',
-    ];
-}

app/Models/InvoiceStudentListModel.php

@@ -23,6 +23,7 @@ class InvoiceStudentListModel extends Model
         'student_lastname',
         'school_id',
         'enrolled',
+        'tuition_fee',
         'created_at',
         'updated_at',
         'school_year',