fix parent pages and teachers and admin

app/Models/Payment.php

@@ -8,13 +8,23 @@ class Payment extends BaseModel
 {
     protected $table = 'payments';
 
-    /**
-     * legacy: useTimestamps = false because DB handles created_at/updated_at (defaults/triggers).
-     * Keep OFF in Laravel too.
-     */
-    public $timestamps = true;
-
-    protected $fillable = ['parent_id', 'invoice_id', 'total_amount', 'paid_amount', 'balance', 'number_of_installments', 'transaction_id', 'check_file', 'check_number', 'payment_method', 'payment_date', 'semester', 'school_year', 'status', 'updated_by', 'created_at', 'updated_at'];
+    protected $fillable = [
+        'parent_id',
+        'invoice_id',
+        'total_amount',
+        'paid_amount',
+        'balance',
+        'number_of_installments',
+        'transaction_id',
+        'check_file',
+        'check_number',
+        'payment_method',
+        'payment_date',
+        'semester',
+        'school_year',
+        'status',
+        'updated_by',
+    ];
 
     protected $casts = [
         'parent_id' => 'integer',
@@ -26,10 +36,20 @@ class Payment extends BaseModel
         'paid_amount' => 'decimal:2',
         'balance' => 'decimal:2',
 
-        'payment_date' => 'datetime',
+        'payment_date' => 'date',
+        'created_at' => 'datetime',
+        'updated_at' => 'datetime',
+    ];
+
+    protected $attributes = [
+        'paid_amount' => '0.00',
+        'balance' => '0.00',
+        'payment_method' => 'Unknown',
+        'status' => 'Pending',
     ];
 
     /* Optional relationships */
+
     public function invoice()
     {
         return $this->belongsTo(Invoice::class, 'invoice_id');
@@ -67,19 +87,18 @@ class Payment extends BaseModel
     {
         /** @var self|null $payment */
         $payment = static::query()->find($paymentId);
+
         if (! $payment) {
             return false;
         }
 
-        $newBalance = (float) $payment->balance - (float) $amountPaid;
-
-        // keep precision stable
-        $paidAmount = (float) $payment->paid_amount + (float) $amountPaid;
+        $newPaidAmount = round((float) $payment->paid_amount + $amountPaid, 2);
+        $newBalance = round((float) $payment->balance - $amountPaid, 2);
 
         $affected = static::query()
             ->whereKey($paymentId)
             ->update([
-                'paid_amount' => $paidAmount,
+                'paid_amount' => $newPaidAmount,
                 'balance' => $newBalance,
             ]);
 
@@ -101,10 +120,10 @@ class Payment extends BaseModel
     public static function generateNewTransactionId(): string
     {
         $currentYear = date('Y');
-        $prefix = $currentYear.'-';
+        $prefix = $currentYear . '-';
 
         $latest = static::query()
-            ->where('transaction_id', 'like', $prefix.'%')
+            ->where('transaction_id', 'like', $prefix . '%')
             ->orderByDesc('transaction_id')
             ->first();
 
@@ -115,30 +134,34 @@ class Payment extends BaseModel
             $newNumber = 1;
         }
 
-        return $prefix.str_pad((string) $newNumber, 6, '0', STR_PAD_LEFT);
+        return $prefix . str_pad((string) $newNumber, 6, '0', STR_PAD_LEFT);
     }
 
     /**
-     * Get latest payment (date/amount/status) per invoice for given invoice IDs.
-     * Matches your legacy logic: statuses in ['Full','Paid','Partially Paid'].
+     * Get latest payment date/amount/status per invoice for given invoice IDs.
+     * Statuses included: Full, Paid, Partially Paid.
      */
     public static function getPaymentsByInvoice($invoiceIds): array
     {
         if (! is_array($invoiceIds)) {
             $invoiceIds = [$invoiceIds];
         }
-        $invoiceIds = array_values(array_unique(array_map('intval', array_filter($invoiceIds))));
+
+        $invoiceIds = array_values(array_unique(array_map(
+            'intval',
+            array_filter($invoiceIds)
+        )));
+
         if (empty($invoiceIds)) {
             return [];
         }
 
-        // Subquery: latest payment_date per invoice (Full/Partial only)
         $latestSub = DB::table('payments')
             ->selectRaw('invoice_id, MAX(payment_date) AS max_date')
+            ->whereIn('invoice_id', $invoiceIds)
             ->whereIn('status', ['Full', 'Paid', 'Partially Paid'])
             ->groupBy('invoice_id');
 
-        // Main query: join payments to the latest per invoice
         $rows = DB::table('payments as p')
             ->joinSub($latestSub, 'latest', function ($join) {
                 $join->on('latest.invoice_id', '=', 'p.invoice_id')
@@ -149,11 +172,13 @@ class Payment extends BaseModel
             ->select([
                 'p.invoice_id',
                 DB::raw('p.paid_amount AS last_paid_amount'),
+                DB::raw('p.balance AS balance'),
+                DB::raw('p.balance AS balance_after_payment'),
                 DB::raw('p.payment_date AS last_payment_date'),
                 DB::raw('p.status AS last_payment_status'),
             ])
             ->get();
 
-        return $rows->map(fn ($r) => (array) $r)->all();
+        return $rows->map(fn ($row) => (array) $row)->all();
     }
 }