<div class="screenshot">
<img src="/img/tutorial/sql-databases/image01.png">
</div>

## Atualizar o App com Múltiplos Modelos { #update-the-app-with-multiple-models }

Agora vamos **refatorar** este app um pouco para aumentar a **segurança** e **versatilidade**.

                                    }
                                }
                            },
                        },
                    },
                    "summary": "Update Item",
                    "operationId": "update_item_items__item_id__put",
                    "requestBody": {
                        "content": {
                            "application/json": {

    }

    @Test
    void testConcurrentWeightCalculation() throws Exception {
        // Test that concurrent weight calculation doesn't cause recursive update issues
        // This test simulates the scenario that causes the IllegalStateException

        int numThreads = 10;
        int numIterations = 100;

  @Override
  public int size() {
    return rowList.size() * columnList.size();
  }

  /**
   * Returns an unmodifiable set of all row key / column key / value triplets. Changes to the table
   * will update the returned set.
   *
   * <p>The returned set's iterator traverses the mappings with the first row key, the mappings with
   * the second row key, and so on.
   *

        the [latest](https://github.com/google/guava/releases/latest) version of Guava available.
        If it's already fixed in the latest version of Guava, then please just update your Guava
        version instead.

  - type: input
    attributes:
      label: Guava Version
      description: Which version of Guava are you using?
      placeholder: e.g., 33.2.1-jre
    validations:

For example, let's say that you want to have a *path operation* that allows to update items, and returns HTTP status codes of 200 "OK" when successful.

But you also want it to accept new items. And when the items didn't exist before, it creates them, and returns an HTTP status code of 201 "Created".

        });
        return redirect(getClass());
    }

    /**
     * Update a data config.
     * @param form The edit form.
     * @return The HTML response.
     */
    @Execute
    @Secured({ ROLE })
    public HtmlResponse update(final EditForm form) {
        verifyCrudMode(form.crudMode, CrudMode.EDIT, this::asListHtml);

            suggestHelper.indexFromDocuments(ret -> {
                logger.info("Success indexing from documents.");
                latch.countDown();
            }, t -> {
                logger.error("Failed to update suggest index.", t);
                exitCode.set(1);
                latch.countDown();
            });

            try {
                latch.await();

	"gorm.io/gorm/schema"
)

// for Config.cacheStore store PreparedStmtDB key
const preparedStmtDBKey = "preparedStmt"

// Config GORM config
type Config struct {
	// GORM perform single create, update, delete operations in transactions by default to ensure database data integrity
	// You can disable it by setting `SkipDefaultTransaction` to true
	SkipDefaultTransaction    bool
	DefaultTransactionTimeout time.Duration

                                    }
                                }
                            },
                        },
                    },
                    "summary": "Update Item",
                    "operationId": "update_item_items__item_id__put",
                    "requestBody": {
                        "content": {
                            "application/json": {