Added hasMany relation on model files and Updated report filter functionality on resource file

app/Models/Item.php

@@ -3,7 +3,6 @@
 namespace App\Models;
 
 use Illuminate\Database\Eloquent\Model;
-use Illuminate\Database\Eloquent\Relations\BelongsTo;
 use Illuminate\Database\Eloquent\SoftDeletes;
 
 class Item extends Model
@@ -60,6 +59,11 @@ class Item extends Model
         return $this->hasMany(ProductCharacteristicsMaster::class);
     }
 
+    public function characteristicValues()
+    {
+        return $this->hasMany(CharacteristicValue::class);
+    }
+
     public function weightValidations()
     {
         return $this->hasMany(WeightValidation::class);

app/Models/Line.php

@@ -61,6 +61,11 @@ class Line extends Model
         return $this->hasMany(ProductCharacteristicsMaster::class);
     }
 
+    public function characteristicValues()
+    {
+        return $this->hasMany(CharacteristicValue::class);
+    }
+
     public function workGroup1()
     {
         return $this->belongsTo(WorkGroupMaster::class, 'work_group1_id', 'id');

app/Models/Plant.php

@@ -98,6 +98,11 @@ class Plant extends Model
         return $this->hasMany(ProductCharacteristicsMaster::class);
     }
 
+    public function characteristicValues()
+    {
+        return $this->hasMany(CharacteristicValue::class);
+    }
+
     public function equipmentMasters()
     {
         return $this->hasMany(EquipmentMaster::class, 'plant_id', 'id');