Question

我已经创建了一个名为FACULTY_VIEW的数据库视图，并希望将grails域类映射到它。这是域：

class FacultyInformation {

    def faculty_pidm
    def faculty_person_id
    def faculty_first_name
    def faculty_last_name

    static mapping = {
        table 'FACULTY_VIEW'
        version false
        cache 'read-only',inlcude:'non-lazy'

        faculty_pidm column:'FACULTY_PIDM'
        faculty_person_id column:'FACULTY_PERSON_ID'
        faculty_first_name column:'FACULTY_FIRST_NAME'
        faculty_last_name column:'FACULTY_LAST_NAME'        
    }

}

这是我尝试搜索的域的Controller代码段：

facultySearchList = FacultyInformation.createCriteria().list (max: params.max, offset: params.offset, sort:params.sort, order: params.order) {
    ilike("faculty_last_name", searchTerm )
}

启动后，我收到此错误消息（我期望）：

|错误2015-11-11 14：58：33,675 [localhost-startStop-1]错误hbm2ddl.SchemaUpdate - 不成功：alter table FACULTY_VIEW add id number（19,0）not null |错误2015-11-11 14：58：33,677 [localhost-startStop-1]错误hbm2ddl.SchemaUpdate - ORA-00942：表或视图不存在

然后，一旦我执行搜索，我就会收到此错误信息：

org.hibernate.QueryException：无法解析属性： faculty_last_name：facultyinformation.FacultyInformation

我当然不打算在此视图中插入或删除，因为我只是在搜索它。

我以这种或那种方式猜测这是一个休眠问题/配置问题。

非常感谢任何帮助： - ）

第2部分：这是我的db changelog来创建视图：

databaseChangeLog = {
        changeSet(author: "jdannucci (generated)", id: "1447432810497-1") {
            createView("""
      SELECT DISTINCT SIRASGN_PIDM AS faculty_pidm, SPRIDEN_ID AS faculty_person_id, SPRIDEN_FIRST_NAME AS faculty_first_name, SPRIDEN_LAST_NAME AS faculty_last_name
    FROM SSBSECT , SCBCRSE, SCRLEVL SC, SIRASGN SA, SPRIDEN
    WHERE SSBSECT_TERM_CODE = (SELECT MAX(STVTERM_CODE) FROM STVTERM
                                            WHERE TRUNC(SYSDATE) BETWEEN TRUNC(STVTERM_START_DATE) AND TRUNC(STVTERM_END_DATE))
    AND SSBSECT_SUBJ_CODE=SCBCRSE_SUBJ_CODE
    AND SSBSECT_CRSE_NUMB=SCBCRSE_CRSE_NUMB
    AND SSBSECT_CRN = SIRASGN_CRN
    AND SSBSECT_SUBJ_CODE != 'FE'
    AND SIRASGN_PRIMARY_IND = 'Y'
    AND SSBSECT_TERM_CODE = SIRASGN_TERM_CODE
    AND SCRLEVL_LEVL_CODE = '01'
    AND SCRLEVL_SUBJ_CODE = SSBSECT_SUBJ_CODE
    AND SCRLEVL_CRSE_NUMB = SSBSECT_CRSE_NUMB
    AND SCRLEVL_EFF_TERM = (SELECT MAX(SCRLEVL_EFF_TERM)
                    FROM SCRLEVL
                    WHERE SCRLEVL_SUBJ_CODE = SC.SCRLEVL_SUBJ_CODE
                    AND  SCRLEVL_CRSE_NUMB = SC. SCRLEVL_CRSE_NUMB
                    AND SCRLEVL_EFF_TERM <= SSBSECT_TERM_CODE)
    AND SCBCRSE_EFF_TERM = (SELECT MAX(SCBCRSE_EFF_TERM)
         FROM SATURN.SCBCRSE X
         WHERE X.SCBCRSE_SUBJ_CODE=SSBSECT_SUBJ_CODE
         AND X.SCBCRSE_CRSE_NUMB=SSBSECT_CRSE_NUMB
         AND X.SCBCRSE_EFF_TERM <= SSBSECT_TERM_CODE)
    AND SPRIDEN_PIDM = SIRASGN_PIDM
    AND SPRIDEN_CHANGE_IND IS NULL
    ORDER BY faculty_last_name
    """, viewName: 'FACULTY_VIEW')
         }
    }

这是我的新域名：

package facultyinformation

class FacultyInformation {

    def faculty_pidm
    def faculty_person_id
    def faculty_first_name
    def faculty_last_name

    static mapping = {
        table 'FACULTY_VIEW'
        version false
        cache 'read-only',inlcude:'non-lazy'

        faculty_pidm column:'FACULTY_PIDM'
        faculty_person_id column:'FACULTY_PERSON_ID'
        faculty_first_name column:'FACULTY_FIRST_NAME'
        faculty_last_name column:'FACULTY_LAST_NAME'        
    }

}

数据源：

development {
        dataSource {
            dbCreate = "none" // one of 'create', 'create-drop','update'
            url = "jdbc:oracle:thin:@xxx.xxx.xxx.xxx:1521:PPRD"

            dialect = "org.hibernate.dialect.Oracle10gDialect"
        }
    }

这里给出了错误的控制器代码：

facultySearchList = FacultyInformation.createCriteria().list (max: params.max, offset: params.offset, sort:params.sort, order: params.order) {
                        ilike("faculty_last_name", searchTerm )
                }

这是错误：

org.hibernate.QueryException: could not resolve property: faculty_last_name of: facultyinformation.FacultyInformation

非常沮丧..我想知道是否更容易避免一起休眠???

Answer 1

根据错误消息的这一部分，数据库连接看不到您的视图：

ORA-00942: table or view does not exist

显然，请确保视图确实存在。

如果视图确实存在，请检查数据源配置并确保它正在使用到正确的数据库，并且连接参数中指定的用户可以访问该视图。

Answer 2

我通过显式执行SQL来创建db-migration插件的一些视图，即使用sql('''CREATE OR REPLACE VIEW而不是createView("""

此外，您还希望通过实施DdlFilterConfiguration来排除GORM表更新中的观点，如Burt Beckwith的演示文稿中所述：http://www.slideshare.net/gr8conf/gorm-burt-beckwith2011

Grails将域类映射到oracle数据库中已存在的视图

2 个答案: