Laravel Non-static method Illuminate\Database\Eloquent\Model::update() should not be called statically

Understanding the Error.

When working with Laravel’s Eloquent ORM, developers sometimes face issues when updating records in the database. One common mistake occurs when a non-static method is called statically. This usually results in unexpected behavior or the update query not working properly.

In Laravel, methods like update() belong to either a model instance or a query builder. Calling them directly using the model class without defining a query condition can cause errors or prevent the database update from executing.

This issue often appears when developers try to update a record using Product::update() directly. Since update() requires a query builder instance or a model instance, Laravel cannot determine which record to update.

Understanding how Eloquent works with model instances and query builders is essential. Once developers follow the correct approach for selecting records before updating them, this error can be easily resolved.

Common Causes.

Below are some common reasons why this error occurs in Laravel projects.

1. Calling Non-Static Methods Statically.

One of the main causes of this error is calling a non-static method as if it were static. For example, using Product::update() without a query builder causes Laravel to fail because the framework expects an instance of the model.

2. Not Selecting a Specific Record.

Another common reason is attempting to update data without specifying which record should be updated. Without conditions such as where() or find(), Laravel does not know which database row needs modification.

3. Incorrect Use of Eloquent Models.

Sometimes developers misunderstand how Eloquent models work. Methods like update() work either on a query builder or a retrieved model instance, not directly on the model class itself.

How to Fix the Error.

There are multiple ways to correctly update records in Laravel. Below are some recommended solutions.

1. Use the where() method before update.

One correct approach is to use the where() method to specify which record should be updated.

Example:

Product::where('id', $product_id)->update([

    'product_sku' => $product_sku,

    'product_name' => $product_name

]);

In this example, the where() condition selects the specific product record before performing the update operation.

2. Use the find() Method to Retrieve the Model.

Another proper method is retrieving the model instance using find() and then calling the update method.

Example:

Product::find($id)->update([

    'product_sku' => $product_sku,

    'product_name' => $product_name

]);

Here, Laravel first fetches the product record and then applies the update to that specific instance.

3. Retrieve the model and assign values manually.

You can also retrieve the model, assign new values, and save it.

Example:

$product = Product::find($id);

$product->product_sku = $product_s

$product->product_name = $product_name;

$product->save();

This method is useful when multiple fields need validation or modification before saving.

4. Check the Model and Database Configuration.

Sometimes the update may fail due to issues in the model configuration. Make sure the fields you want to update are included in the $fillable property of the model.

Example:

protected $fillable = ['product_sku', 'product_name'];

Without defining fillable fields, Laravel may block mass assignment updates.

Conclusion.

Laravel’s Eloquent ORM provides a powerful and elegant way to manage database operations. However, understanding the difference between static and non-static methods is crucial to avoiding errors during development.

When developers try to call the update() method directly on a model without selecting a record, Laravel cannot determine which row should be updated. This results in database updates failing or producing errors.

The best practice is always to retrieve the record first using methods like where() or find(). Once the model instance is available, the update operation will work smoothly.

By following proper Eloquent conventions and understanding how model instances work, developers can easily prevent this issue and build more reliable Laravel applications.