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我在Grails中有以下域模型我試圖運行一個查詢,但它失敗,說這是一個無效的查詢。爲什麼這個Grails(GORM)查詢無效?
查詢看起來像:
StringBuilder queryBuf = new StringBuilder(); queryBuf.append("select rr.role from ReportRole rr "); def newroles = ReportRole.findAll(queryBuf)
而且,域看起來是這樣:
package auth
import java.util.Date
import auth.Report
import auth.Role
class ReportRole {
Long id
Report report
Role role
Date dateCreated
Date lastUpdated
Person createdBy
static mapping = {
table 'CIT_RM_Report_Role'
version false
role joinTable:[name:'AU_ROLE_DESCR', key:'role_id', column:'id']
columns {
id column:'report_role_id'
report column:'report_id'
createdBy column:'created_by'
dateCreated column:'create_date'
lastUpdated column:'last_updated'
}
}
}
package auth;
class Role {
static hasMany = [people: Person]
Long id;
String authority;
String description;
static mapping = {
table 'AU_ROLE_DESCR'
people joinTable:[name:'AU_PERSON_ROLE', key:'AUTHORITY_ID', column:'PERSON_ID']
version false;
}
}
誰能告訴我這是爲什麼無效。我有一些類似這樣的查詢將工作的類似的域。
精確的錯誤是:無效的查詢[從ReportRole RR選擇rr.role]域類[類auth.ReportRole] –
我想我可能已經有鑰匙/列混在一起,所以我試着扭轉它們,但同樣的錯誤。 –