fix: Handle lateinit as null in field change (#21)

crud-framework-core/src/main/java/dev/krud/crudframework/crud/hooks/interfaces/FieldChangeHook.kt

@@ -9,32 +9,39 @@ abstract class FieldChangeHook<PropertyType, Entity : BaseCrudEntity<*>>(val pro
     open fun postChange(originalValue: PropertyType?, newValue: PropertyType?, entity: Entity) {}
 
     fun shouldTrigger(entity: Entity, original: Entity): Boolean {
-        val originalValue = property.get(original) as PropertyType?
-        val newValue = property.get(entity) as PropertyType?
+        val originalValue = property.getValue(original)
+        val newValue = property.getValue(entity)
         return originalValue != newValue
     }
 
     fun runPreChange(entity: Entity, original: Entity) {
-        val originalValue = property.get(original) as PropertyType?
-        val newValue = property.get(entity) as PropertyType?
+        val originalValue = property.getValue(original)
+        val newValue = property.getValue(entity)
         if(originalValue == newValue) return
         preChange(originalValue, newValue, entity)
     }
 
     fun runOnChange(entity: Entity, original: Entity) {
-        val originalValue = property.get(original) as PropertyType?
-        val newValue = property.get(entity) as PropertyType?
+        val originalValue = property.getValue(original)
+        val newValue = property.getValue(entity)
         if(originalValue == newValue) return
         onChange(originalValue, newValue, entity)
     }
 
     fun runPostChange(entity: Entity, original: Entity) {
-        val originalValue = property.get(original) as PropertyType?
-        val newValue = property.get(entity) as PropertyType?
+        val originalValue = property.getValue(original)
+        val newValue = property.getValue(entity)
         if(originalValue == newValue) return
         postChange(originalValue, newValue, entity)
     }
 
+    fun <Entity, PropertyType> KProperty1<Entity, PropertyType?>.getValue(instance: Entity): PropertyType? {
+        return try {
+            this.get(instance)
+        } catch (e: UninitializedPropertyAccessException) {
+            null
+        }
+    }
 }
 
 inline fun <reified T, reified E : BaseCrudEntity<*>> fieldChangeHook(