Question

我想用活动的android更新单行的多个单元格。像这样的事情，

    new Update(Question.class).set("UserAnswer ="+answerID,
                                    "UserAnswerType = "+userAnswerType)
                               .where("QID = ?", questionID).execute();

但这会给我错误。还有其他办法吗？或者我错过了什么？

这是我的Question.class供参考

@Table(name = "Questions")
public class Question extends Model {
@Expose
@Column(name = "QID")
private Integer ID;

@Expose
@Column(name = "AnswerID")
private Integer AnswerID;

@Expose
@Column(name = "UserAnswer")
private Integer UserAnswer;

@Expose
@Column(name = "UserAnswerType")
private Integer UserAnswerType;

//Getter and setter methods for fields

public Question() {
    // You have to call super in each constructor to create the table.
    super();
}
}

Answer 1

您可以执行以下操作。我已经在我的一个项目中完成了它并且工作正常。

 String updateSet = " UserAnswer = ? ," +
                    " UserAnswerType = ? ";

 new Update(Question.class)
     .set(updateSet, answerID, userAnswerType)
     .where(" QID = ? ", questionID)
     .execute();

对于任意数量的列，遵循类似的模式将起作用。如果您的表格中有Boolean个字段，this issue可以为您提供帮助。

Answer 2

我们可以这样做。

bullet

Answer 3

String x="sent = 1,file = "+n.getString("file");
new Update(Messages.class)
    .set(x)
    .where("id = ?", lid)
    .execute();

使用activeAndroid更新多个列

3 个答案: