gorm.Model
		Name                    string
		FieldAllowCreate        string `gorm:"<-:create"`
		FieldAllowUpdate        string `gorm:"<-:update"`
		FieldAllowSave          string `gorm:"<-"`
		FieldAllowSave2         string `gorm:"<-:create,update"`
		FieldAllowSave3         string `gorm:"->:false;<-:create"`
		FieldReadonly           string `gorm:"->"`
		FieldIgnore             string `gorm:"-"`

{* ../../docs_src/body_updates/tutorial002_py310.py hl[32] *}

### 使用 Pydantic 的 `update` 參數 { #using-pydantics-update-parameter }

接著，你可以用 `.model_copy()` 建立現有模型的副本，並傳入含有要更新資料之 `dict` 到 `update` 參數。

例如 `stored_item_model.model_copy(update=update_data)`：

{* ../../docs_src/body_updates/tutorial002_py310.py hl[33] *}

### 部分更新摘要 { #partial-updates-recap }

總結一下，若要套用部分更新，你可以：

*（可選）使用 `PATCH` 取代 `PUT`。
* 取回已儲存的資料。

            log.trace("update: " + this.updates + " " + offset + ":" + len);
            log.trace(Hexdump.toHexString(input, offset, Math.min(len, 256)));
        }
        if (len == 0) {
            return; /* CRITICAL */
        }
        this.digest.update(input, offset, len);
        this.updates++;
    }

    /**
     * Finalize and return the calculated message digest
     *
     * @return calculated digest

    if (listeners == expect) {
      listeners = update;
      return true;
    }
    return false;
  }

  final @Nullable Listener gasListeners(Listener update) {
    Listener old = listeners;
    listeners = update;
    return old;
  }

  static boolean casValue(AbstractFutureState<?> future, @Nullable Object expect, Object update) {
    if (future.value == expect) {

                return 5;
            }
        });

        ComponentUtil.register(new KeyMatchHelper() {
            @Override
            public void update() {
                // Mock update
            }
        }, "keyMatchHelper");

        String result = crawlJob.execute();

        assertNotNull(result);
        assertTrue(result.contains("Session Id:"));

        try (MappingUpdater updater = new MappingUpdater(item)) {
            reload(updater);
        }
    }

    /**
     * Updates an existing character mapping item in the dictionary file.
     *
     * @param item the character mapping item to update
     */
    @Override
    public synchronized void update(final CharMappingItem item) {

        exit 0
    fi
    
    BRANCH_NAME="devprod/update-wrapper-$(date +%Y%m%d-%H%M%S)"
    git switch -c $BRANCH_NAME
    git commit --signoff --author="bot-gradle <******@****.***>" -m "Update Gradle wrapper to version $WRAPPER_VERSION"
    git push https://${GITHUB_TOKEN}@github.com/gradle/gradle.git $BRANCH_NAME
    
    PR_TITLE="Update Gradle wrapper to version $WRAPPER_VERSION"

    PR_RESPONSE=$(post "/pulls" "{

		b += slashSeparator
	}
	return b
}

// update cache with new status.
// The updates are conditional so multiple callers can update with different states.
func (m *metacache) update(update metacache) {
	now := UTCNow()
	m.lastUpdate = now

	if update.lastHandout.After(m.lastHandout) {
		m.lastHandout = update.lastUpdate
		if m.lastHandout.After(now) {
			m.lastHandout = now
		}
	}

		Result  string
		Vars    []interface{}
	}{
		{
			[]clause.Interface{clause.Update{}},
			"UPDATE `users`", nil,
		},
		{
			[]clause.Interface{clause.Update{Modifier: "LOW_PRIORITY"}},
			"UPDATE LOW_PRIORITY `users`", nil,
		},
		{
			[]clause.Interface{clause.Update{Table: clause.Table{Name: "products"}, Modifier: "LOW_PRIORITY"}},
			"UPDATE LOW_PRIORITY `products`", nil,
		},
	}

	for idx, result := range results {

    @Override
    public Hasher putInt(int i) {
      update(4, i);
      return this;
    }

    @CanIgnoreReturnValue
    @Override
    public Hasher putLong(long l) {
      update(4, (int) l);
      update(4, l >>> 32);
      return this;
    }

    @CanIgnoreReturnValue
    @Override
    public Hasher putChar(char c) {
      update(2, c);
      return this;
    }