/**
     * Loads the known keywords. Although the JSON on disk maps from language to keywords, this method
     * inverts this to map from keyword to languages. This is because the same keywords are found in
     * multiple languages, so it is easier and more useful to have a single map of keywords.
     *
     * @return a mapping from keyword to languages.
     */
    private Map<String, Set<String>> loadKeywords() {

        String[] roles = { "admin", "user" };
        item.setRoles(roles);
        assertArrayEquals(roles, item.getRoles());

        // Test languages
        String[] languages = { "en", "fr" };
        item.setLanguages(languages);
        assertArrayEquals(languages, item.getLanguages());

        // Test kinds
        SuggestItem.Kind[] kinds = { SuggestItem.Kind.DOCUMENT, SuggestItem.Kind.QUERY };

	} else if len(langs2) != 3 {
		t.Errorf("should only find only 3 languages, but got %+v", langs2)
	}

	DB.Clauses(clause.OnConflict{DoNothing: true}).Create(&langs)
	var langs3 []Language
	if err := DB.Find(&langs3, "code LIKE ?", "upsert-slice%").Error; err != nil {
		t.Errorf("no error should happen when find languages with code, but got %v", err)
	} else if len(langs3) != 3 {

	}

	user.Languages = []Language{{Code: "zh-CN", Name: "Chinese"}, {Code: "en", Name: "English"}}
	for _, lang := range user.Languages {
		DB.Create(&lang)
	}
	user.Friends = []*User{{Name: "friend-1"}, {Name: "friend-2"}}

	if err := DB.Save(&user).Error; err != nil {
		t.Fatalf("errors happened when update: %v", err)
	}

	var user2 User

    private final Normalizer normalizer;
    private final List<String> languages;
    private final float prefixMatchWeight;

    /**
     * Constructs a new SuggestQueryBuilder.
     *
     * @param readingConverter The reading converter.
     * @param normalizer The normalizer.
     * @param languages The list of languages.
     * @param prefixMatchWeight The prefix match weight.
     */

	}

	// Verify the languages were associated using real database query
	var updatedUser User
	if err := DB.Preload("Languages").Where("id = ?", user.ID).First(&updatedUser).Error; err != nil {
		t.Fatalf("failed to find updated user: %v", err)
	}

	if len(updatedUser.Languages) != 2 {
		t.Fatalf("expected 2 languages, got %d", len(updatedUser.Languages))
	}
}

    /** The roles field. */
    public static final String ROLES = "roles";
    /** The fields field. */
    public static final String FIELDS = "fields";
    /** The languages field. */
    public static final String LANGUAGES = "languages";

    /** The key for array elements. */
    public static final String ARRAY_KEY = "key";
    /** The value for array elements. */
    public static final String ARRAY_VALUE = "value";

        this.skipDuplicateWords = skipDuplicateWords;
    }

    /**
     * Adds a language to filter by.
     * @param lang The language.
     */
    public void addLang(final String lang) {
        languages.add(lang);
    }

    @Override
    protected String getValidationError() {
        return null;
    }

                    "<script src=\"https://cdnjs.cloudflare.com/ajax/libs/highlight.js/11.11.1/languages/xml.min.js\"></script>" +
                    "<script src=\"https://cdnjs.cloudflare.com/ajax/libs/highlight.js/11.11.1/languages/kotlin.min.js\"></script>" +
                    "<script src=\"https://cdnjs.cloudflare.com/ajax/libs/highlight.js/11.11.1/languages/groovy.min.js\"></script>" +

						return d.Or(DB.Where("b = 2").Or("c = 3"))
					},
				).Find(&Language{})
			},
			expected: `SELECT * FROM "languages" WHERE z = 0 AND a = 1 OR (b = 2 OR c = 3)`,
		}, {
			name: "depth_2",
			queryFn: func(tx *gorm.DB) *gorm.DB {
				return tx.Scopes(
					func(d *gorm.DB) *gorm.DB { return d.Model(&Language{}) },
					func(d *gorm.DB) *gorm.DB {
						return d.
							Or(DB.Scopes(