Add device master policy file

app/Filament/Resources/DeviceMasterResource.php

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+<?php
+
+namespace App\Filament\Resources;
+
+use App\Filament\Resources\DeviceMasterResource\Pages;
+use App\Filament\Resources\DeviceMasterResource\RelationManagers;
+use App\Models\DeviceMaster;
+use Filament\Facades\Filament;
+use Filament\Forms;
+use Filament\Forms\Form;
+use Filament\Resources\Resource;
+use Filament\Tables;
+use Filament\Tables\Table;
+use Illuminate\Database\Eloquent\Builder;
+use Illuminate\Database\Eloquent\SoftDeletingScope;
+use Filament\Forms\Components\Section;
+
+class DeviceMasterResource extends Resource
+{
+    protected static ?string $model = DeviceMaster::class;
+
+    protected static ?string $navigationIcon = 'heroicon-o-rectangle-stack';
+     protected static ?string $navigationGroup = 'Power House';
+
+    public static function form(Form $form): Form
+    {
+        return $form
+            ->schema([
+                Section::make('')
+                ->schema([
+                Forms\Components\Select::make('plant_id')
+                    ->label('Plant')
+                    ->relationship('plant', 'name')
+                    ->required(),
+                Forms\Components\TextInput::make('name')
+                    ->label('Device Name')
+                    ->required(),
+                Forms\Components\TextInput::make('mac_address')
+                    ->label('MAC Address'),
+                Forms\Components\TextInput::make('ip_address')
+                    ->label('IP Address'),
+                Forms\Components\Hidden::make('created_by')
+                   ->default(Filament::auth()->user()?->name),
+            ])
+            ->columns(4),
+            ]);
+    }
+
+    public static function table(Table $table): Table
+    {
+        return $table
+            ->columns([
+                Tables\Columns\TextColumn::make('id')
+                    ->label('ID')
+                    ->numeric()
+                    ->sortable(),
+                Tables\Columns\TextColumn::make('plant.name')
+                    ->label('Plant')
+                    ->alignCenter()
+                    ->sortable(),
+                Tables\Columns\TextColumn::make('name')
+                    ->label('Device Name')
+                    ->alignCenter()
+                    ->sortable(),
+                Tables\Columns\TextColumn::make('mac_address')
+                    ->label('MAC Address')
+                    ->alignCenter()
+                    ->sortable(),
+                Tables\Columns\TextColumn::make('ip_address')
+                    ->label('IP Address')
+                    ->alignCenter()
+                    ->sortable(),
+                Tables\Columns\TextColumn::make('created_at')
+                    ->label('Created At')
+                    ->alignCenter()
+                    ->dateTime()
+                    ->sortable()
+                    ->toggleable(isToggledHiddenByDefault: true),
+                Tables\Columns\TextColumn::make('updated_at')
+                    ->label('Updated At')
+                    ->alignCenter()
+                    ->dateTime()
+                    ->sortable()
+                    ->toggleable(isToggledHiddenByDefault: true),
+                Tables\Columns\TextColumn::make('deleted_at')
+                    ->dateTime()
+                    ->alignCenter()
+                    ->sortable()
+                    ->toggleable(isToggledHiddenByDefault: true),
+            ])
+            ->filters([
+                Tables\Filters\TrashedFilter::make(),
+            ])
+            ->actions([
+                Tables\Actions\ViewAction::make(),
+                Tables\Actions\EditAction::make(),
+            ])
+            ->bulkActions([
+                Tables\Actions\BulkActionGroup::make([
+                    Tables\Actions\DeleteBulkAction::make(),
+                    Tables\Actions\ForceDeleteBulkAction::make(),
+                    Tables\Actions\RestoreBulkAction::make(),
+                ]),
+            ]);
+    }
+
+    public static function getRelations(): array
+    {
+        return [
+            //
+        ];
+    }
+
+    public static function getPages(): array
+    {
+        return [
+            'index' => Pages\ListDeviceMasters::route('/'),
+            'create' => Pages\CreateDeviceMaster::route('/create'),
+            'view' => Pages\ViewDeviceMaster::route('/{record}'),
+            'edit' => Pages\EditDeviceMaster::route('/{record}/edit'),
+        ];
+    }
+
+    public static function getEloquentQuery(): Builder
+    {
+        return parent::getEloquentQuery()
+            ->withoutGlobalScopes([
+                SoftDeletingScope::class,
+            ]);
+    }
+}

app/Filament/Resources/DeviceMasterResource/Pages/CreateDeviceMaster.php

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+<?php
+
+namespace App\Filament\Resources\DeviceMasterResource\Pages;
+
+use App\Filament\Resources\DeviceMasterResource;
+use Filament\Actions;
+use Filament\Resources\Pages\CreateRecord;
+
+class CreateDeviceMaster extends CreateRecord
+{
+    protected static string $resource = DeviceMasterResource::class;
+}

app/Filament/Resources/DeviceMasterResource/Pages/EditDeviceMaster.php

@@ -0,0 +1,22 @@
+<?php
+
+namespace App\Filament\Resources\DeviceMasterResource\Pages;
+
+use App\Filament\Resources\DeviceMasterResource;
+use Filament\Actions;
+use Filament\Resources\Pages\EditRecord;
+
+class EditDeviceMaster extends EditRecord
+{
+    protected static string $resource = DeviceMasterResource::class;
+
+    protected function getHeaderActions(): array
+    {
+        return [
+            Actions\ViewAction::make(),
+            Actions\DeleteAction::make(),
+            Actions\ForceDeleteAction::make(),
+            Actions\RestoreAction::make(),
+        ];
+    }
+}

app/Filament/Resources/DeviceMasterResource/Pages/ListDeviceMasters.php

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+<?php
+
+namespace App\Filament\Resources\DeviceMasterResource\Pages;
+
+use App\Filament\Resources\DeviceMasterResource;
+use Filament\Actions;
+use Filament\Resources\Pages\ListRecords;
+
+class ListDeviceMasters extends ListRecords
+{
+    protected static string $resource = DeviceMasterResource::class;
+
+    protected function getHeaderActions(): array
+    {
+        return [
+            Actions\CreateAction::make(),
+        ];
+    }
+}

app/Filament/Resources/DeviceMasterResource/Pages/ViewDeviceMaster.php

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+<?php
+
+namespace App\Filament\Resources\DeviceMasterResource\Pages;
+
+use App\Filament\Resources\DeviceMasterResource;
+use Filament\Actions;
+use Filament\Resources\Pages\ViewRecord;
+
+class ViewDeviceMaster extends ViewRecord
+{
+    protected static string $resource = DeviceMasterResource::class;
+
+    protected function getHeaderActions(): array
+    {
+        return [
+            Actions\EditAction::make(),
+        ];
+    }
+}

app/Models/DeviceMaster.php

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+<?php
+
+namespace App\Models;
+
+use Illuminate\Database\Eloquent\Model;
+use Illuminate\Database\Eloquent\Relations\BelongsTo;
+use Illuminate\Database\Eloquent\SoftDeletes;
+
+class DeviceMaster extends Model
+{
+    use SoftDeletes;
+
+    protected $fillable = [
+        'plant_id',
+		'name',
+        'mac_address',
+        'ip_address',
+        'created_at',
+		'updated_at',
+		'created_by',
+    ];
+
+    public function plant(): BelongsTo
+    {
+        return $this->belongsTo(Plant::class);
+    }
+}

app/Policies/DeviceMasterPolicy.php

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+<?php
+
+namespace App\Policies;
+
+use Illuminate\Auth\Access\Response;
+use App\Models\DeviceMaster;
+use App\Models\User;
+
+class DeviceMasterPolicy
+{
+    /**
+     * Determine whether the user can view any models.
+     */
+    public function viewAny(User $user): bool
+    {
+        return $user->checkPermissionTo('view-any DeviceMaster');
+    }
+
+    /**
+     * Determine whether the user can view the model.
+     */
+    public function view(User $user, DeviceMaster $devicemaster): bool
+    {
+        return $user->checkPermissionTo('view DeviceMaster');
+    }
+
+    /**
+     * Determine whether the user can create models.
+     */
+    public function create(User $user): bool
+    {
+        return $user->checkPermissionTo('create DeviceMaster');
+    }
+
+    /**
+     * Determine whether the user can update the model.
+     */
+    public function update(User $user, DeviceMaster $devicemaster): bool
+    {
+        return $user->checkPermissionTo('update DeviceMaster');
+    }
+
+    /**
+     * Determine whether the user can delete the model.
+     */
+    public function delete(User $user, DeviceMaster $devicemaster): bool
+    {
+        return $user->checkPermissionTo('delete DeviceMaster');
+    }
+
+    /**
+     * Determine whether the user can delete any models.
+     */
+    public function deleteAny(User $user): bool
+    {
+        return $user->checkPermissionTo('delete-any DeviceMaster');
+    }
+
+    /**
+     * Determine whether the user can restore the model.
+     */
+    public function restore(User $user, DeviceMaster $devicemaster): bool
+    {
+        return $user->checkPermissionTo('restore DeviceMaster');
+    }
+
+    /**
+     * Determine whether the user can restore any models.
+     */
+    public function restoreAny(User $user): bool
+    {
+        return $user->checkPermissionTo('restore-any DeviceMaster');
+    }
+
+    /**
+     * Determine whether the user can replicate the model.
+     */
+    public function replicate(User $user, DeviceMaster $devicemaster): bool
+    {
+        return $user->checkPermissionTo('replicate DeviceMaster');
+    }
+
+    /**
+     * Determine whether the user can reorder the models.
+     */
+    public function reorder(User $user): bool
+    {
+        return $user->checkPermissionTo('reorder DeviceMaster');
+    }
+
+    /**
+     * Determine whether the user can permanently delete the model.
+     */
+    public function forceDelete(User $user, DeviceMaster $devicemaster): bool
+    {
+        return $user->checkPermissionTo('force-delete DeviceMaster');
+    }
+
+    /**
+     * Determine whether the user can permanently delete any models.
+     */
+    public function forceDeleteAny(User $user): bool
+    {
+        return $user->checkPermissionTo('force-delete-any DeviceMaster');
+    }
+}

database/migrations/2025_07_30_110725_create_device_masters_table.php

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+<?php
+
+use Illuminate\Database\Migrations\Migration;
+use Illuminate\Database\Schema\Blueprint;
+use Illuminate\Support\Facades\Schema;
+
+return new class extends Migration
+{
+    /**
+     * Run the migrations.
+     */
+    public function up(): void
+    {
+         $sql = <<<'SQL'
+            CREATE TABLE device_masters (
+                id					BIGINT GENERATED always AS IDENTITY PRIMARY KEY,
+                plant_id            BIGINT NOT NULL,
+
+                name                TEXT NOT NULL,
+                mac_address         TEXT DEFAULT NULL,
+                ip_address          TEXT DEFAULT NULL,
+
+                created_at			TIMESTAMP NOT NULL DEFAULT NOW(),
+                updated_at			TIMESTAMP NOT NULL DEFAULT NOW(),
+                deleted_at			TIMESTAMP,
+
+                created_by			TEXT NULL,
+
+                UNIQUE (name, plant_id),
+                FOREIGN KEY (plant_id)      REFERENCES  plants (id)
+
+            );
+        SQL;
+
+        DB::statement($sql);
+    }
+
+    /**
+     * Reverse the migrations.
+     */
+    public function down(): void
+    {
+        Schema::dropIfExists('device_masters');
+    }
+};