Question

我有一个如下所示的resultSet：

library(dplyr)
pulse %>%
  mutate(first = if_else(is.na(Rt1), Rt2, Rt1))

pulse <- mutate(pulse, cd1 = Rt2 - if_else(is.na(Rt1), Rt2, Rt1))

映射到此resultSet的select查询是：

    <resultMap type="User" id="userMap">
        <id column="id" property="id" />
        <result property="userName" column="user_name" />
        <result property="enabled" column="enabled" />
        <result property="firstName" column="first_name" />
        <result property="lastName" column="last_name" />
        <result property="email" column="email" />
        <result property="password" column="user_password" />
        <result property="passwordSalt" column="user_password_salt" />
        <result property="lastLogin" column="last_login_time" />
        <result property="creationTime" column="creation_time" />
        <result property="lastEdit" column="last_edit_time" />
        <result property="validTill" column="valid_till" />

        <collection property="roles" javaType="ArrayList" ofType="Role" column="id">
            <id property="id" column="role_id" />
            <result property="name" column="role_name" />
            <result property="description" column="role_description" />
        </collection>

    </resultMap>

视图查询是这样的：

<select id="getWithRole" resultMap="userMap" parameterType="User">
    SELECT * FROM view_boss_user_role
    <trim prefix="WHERE" prefixOverrides="AND | OR ">
        <if test="id != null">id = #{id}</if>
        <if test="userName != null">AND user_name = #{userName}</if>
        <if test="firstName != null">AND first_name = #{firstName}</if>
        <if test="lastName != null">AND last_name = #{lastName}</if>
        <if test="email != null">AND email = #{email}</if>
    </trim>
</select>

产生的结果类似于：

CREATE OR REPLACE VIEW public.view_boss_user_role(
    id,
    user_name,
    enabled,
    first_name,
    last_name,
    email,
    user_password,
    user_password_salt,
    last_login_time,
    creation_time,
    last_edit_time,
    valid_till,
    role_id,
    role_name,
    role_description)
AS
  SELECT bu.id,
         bu.user_name,
         bu.enabled,
         bu.first_name,
         bu.last_name,
         bu.email,
         bu.user_password,
         bu.user_password_salt,
         bu.last_login_time,
         bu.creation_time,
         bu.last_edit_time,
         bu.valid_till,
         br.id AS role_id,
         br.name AS role_name,
         br.description AS role_description
  FROM boss_user bu
       LEFT JOIN boss_role_user_map ru ON ru.user_id = bu.id
       LEFT JOIN boss_role br ON ru.role_id = br.id;

但是，当我尝试从此结果图中获取角色列表时，它会将其显示为空白。我不知道自己做错了什么。文档要么不容易区分这个收集标记的情况，要么我没有把它弄好。

由于某些原因，我无法对resultMap定义进行单一更改，但可以更改查询。并且保证resultMap定义是正确的。

需要专家指导

查询结果未映射到mybatis resultMap

0 个答案: