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当我尝试在我的应用程序中创建一个新类别时，我收到以下错误，它抱怨 FK 约束。但是，它抱怨的 FK 将类别描述映射到类别，因为两者都是同时创建的，我不确定为什么会出现问题。

我可以毫无问题地更新类别和类别描述。

错误

ERROR - Cannot add or update a child row: a foreign key constraint fails (`crcart3`.`categorydescription`, CONSTRAINT `FKC6C4CBFE6FD28044` FOREIGN KEY (`category_description_id`) REFERENCES `categorydescription` (`category_id`))

类别表

@Table(name = "Category")
public class Category {
    @Id
    @GeneratedValue(strategy = GenerationType.IDENTITY)
    @Column(name = "category_id")
    private int categoryId;

    @JoinTable(
            name = "ImageMapping",
            joinColumns = @JoinColumn(name = "category_id"),
            inverseJoinColumns = @JoinColumn(name = "image_id")
    )
    @OneToOne(fetch = FetchType.EAGER, cascade = CascadeType.ALL)
    private Image categoryImageId;

    @JoinTable(
            name="CategoryDescription",
            joinColumns = @JoinColumn(name="category_id"),
            inverseJoinColumns = @JoinColumn(name="category_description_id")
    )
    @OneToOne(fetch = FetchType.EAGER, cascade = CascadeType.ALL)
    private CategoryDescription categoryDescription;

    @JoinTable(
            name = "CategoryMapping",
            joinColumns = @JoinColumn(name = "category_id"),
            inverseJoinColumns = @JoinColumn(name = "parent_category_id")
    )
    @ManyToOne(fetch = FetchType.EAGER, cascade = CascadeType.ALL)
    private Category parentCategory;

    @Column(name = "category_sort_order")
    private int sortOrder;

    @Column(name = "date_added")
    private Timestamp dateAdded;

    @Column(name = "last_modified")
    private Timestamp lastModified;

类别描述表

@Table(name="CategoryDescription")
public class CategoryDescription {
    @Id
    @GeneratedValue(strategy = GenerationType.IDENTITY)
    @Column(name = "category_description_id")
    private int categoryDescriptionId;

    @Column(name="category_id")
    private int categoryId;

    @OneToOne
    @JoinColumn(name="language_id")
    private Language languageId;

    @Column(name="category_name")
    private String categoryName;

    @Column(name="category_text")
    private String categoryText;
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1 回答 1

1

错误消息说：

(`crcart3`.`categorydescription`, 
 CONSTRAINT `FKC6C4CBFE6FD28044` FOREIGN KEY (`category_description_id`) 
 REFERENCES `categorydescription` (`category_id`))

这意味着在表中categorydescription，列是同一个表的列的category_description_id外键。category_idcategorydescription

这对我来说不合适。category_id在此表中包含一列似乎也不正确。

于 2013-04-10T14:27:49.627 回答