Play Mapping 忽略 RawSQL Ebean
Play Mapping ignore RawSQL Ebean
我使用的是 Play Framework 2.3,当我尝试创建自己的 sql 查询时,总是遇到映射忽略问题。
我不知道是否应该使用 Ebean 来编写这个复杂的 sql 查询。
这是 SQL 查询效果很好:
SELECT g.id,
concat(g.client_id,'-',trim(to_char(n.number,'099999'))) as reference,
(
SELECT sum(total_ttc)
from global_commission_invoice_line
where global_commission_invoice_id= g.id
) as totalTTC
from global_commission_invoice g
LEFT JOIN invoice_number n on g.invoice_number_id = n.id
LEFT JOIN client c2 on g.client_id = c2.id
我尝试用 ebean 解析它,因为我有一个带参数的 WHEN 子句。
我的 java 代码大致如下所示。
String sql = " SELECT g.id, " +
" concat(g.client_id,'-',trim(to_char(n.number,'099999'))) as reference," +
" (" +
" SELECT sum(total_ttc)" +
" from global_commission_invoice_line" +
" where global_commission_invoice_id= g.id" +
" ) as totalTTC " +
" from global_commission_invoice g" +
" LEFT JOIN invoice_number n on g.invoice_number_id = n.id" +
" LEFT JOIN client c2 on g.client_id = c2.id";
// Create sql
RawSql rawSql = RawSqlBuilder.parse(sql)
.columnMapping("g.id","id")
.columnMappingIgnore("concat(g.client_id,'-',trim(to_char(n.number,'099999')))")
.columnMappingIgnore("( SELECT sum(total_ttc) from global_commission_invoice_line where global_commission_invoice_id= g.id )")
.create();
return Ebean.find(models.GlobalCommissionInvoice.class).setRawSql(rawSql)
.findList()
此映射忽略成功且没有错误:
.columnMappingIgnore("( SELECT sum(total_ttc) from global_commission_invoice_line where global_commission_invoice_id= g.id )")
但是这个:
.columnMappingIgnore("concat(g.client_id,'-',trim(to_char(n.number,'099999')))")
Return 这个错误:
Execution exception[[IllegalArgumentException: DB Column [ concat(g.client_id, '-', trim(to_char(n.number, '099999')))] not found in mapping. Expecting one of [[g.id, concat(g.client_id, '-', trim(to_char(n.number, '099999'))), ( SELECT sum(total_ttc) from global_commission_invoice_line where global_commission_invoice_id= g.id )]]]]
有时我发现错误,大约是一个 space 或一个换行符放错了地方,但我从来不知道如何在复杂查询中使用它,而不去搜索为什么我有几个小时的错误。
我应该为这种类型的 sql 查询使用 ebean 吗?我使用映射忽略严重吗?
P.S。 : 对不起我的英语不好,我是法语
我找到了解决办法。我调试 ebean RawSql class 并使我的映射与 ebean 映射匹配。
Ebean 切片 SELECT 每个逗号处的语句,所以我的 concat 函数被分成 3 个部分。
解决方案:
// Create sql
RawSql rawSql = RawSqlBuilder.parse(sqlStringBuilder.getStrStatement())
.columnMapping("g.id","id")
.columnMappingIgnore("concat(g.client_id")
.columnMappingIgnore("'-'")
.columnMappingIgnore("trim(to_char(n.number")
.columnMappingIgnore("'099999')))")
.columnMappingIgnore("( SELECT sum(total_ttc) from global_commission_invoice_line where global_commission_invoice_id= g.id )")
.create();
我使用的是 Play Framework 2.3,当我尝试创建自己的 sql 查询时,总是遇到映射忽略问题。
我不知道是否应该使用 Ebean 来编写这个复杂的 sql 查询。
这是 SQL 查询效果很好:
SELECT g.id,
concat(g.client_id,'-',trim(to_char(n.number,'099999'))) as reference,
(
SELECT sum(total_ttc)
from global_commission_invoice_line
where global_commission_invoice_id= g.id
) as totalTTC
from global_commission_invoice g
LEFT JOIN invoice_number n on g.invoice_number_id = n.id
LEFT JOIN client c2 on g.client_id = c2.id
我尝试用 ebean 解析它,因为我有一个带参数的 WHEN 子句。
我的 java 代码大致如下所示。
String sql = " SELECT g.id, " +
" concat(g.client_id,'-',trim(to_char(n.number,'099999'))) as reference," +
" (" +
" SELECT sum(total_ttc)" +
" from global_commission_invoice_line" +
" where global_commission_invoice_id= g.id" +
" ) as totalTTC " +
" from global_commission_invoice g" +
" LEFT JOIN invoice_number n on g.invoice_number_id = n.id" +
" LEFT JOIN client c2 on g.client_id = c2.id";
// Create sql
RawSql rawSql = RawSqlBuilder.parse(sql)
.columnMapping("g.id","id")
.columnMappingIgnore("concat(g.client_id,'-',trim(to_char(n.number,'099999')))")
.columnMappingIgnore("( SELECT sum(total_ttc) from global_commission_invoice_line where global_commission_invoice_id= g.id )")
.create();
return Ebean.find(models.GlobalCommissionInvoice.class).setRawSql(rawSql)
.findList()
此映射忽略成功且没有错误:
.columnMappingIgnore("( SELECT sum(total_ttc) from global_commission_invoice_line where global_commission_invoice_id= g.id )")
但是这个:
.columnMappingIgnore("concat(g.client_id,'-',trim(to_char(n.number,'099999')))")
Return 这个错误:
Execution exception[[IllegalArgumentException: DB Column [ concat(g.client_id, '-', trim(to_char(n.number, '099999')))] not found in mapping. Expecting one of [[g.id, concat(g.client_id, '-', trim(to_char(n.number, '099999'))), ( SELECT sum(total_ttc) from global_commission_invoice_line where global_commission_invoice_id= g.id )]]]]
有时我发现错误,大约是一个 space 或一个换行符放错了地方,但我从来不知道如何在复杂查询中使用它,而不去搜索为什么我有几个小时的错误。
我应该为这种类型的 sql 查询使用 ebean 吗?我使用映射忽略严重吗?
P.S。 : 对不起我的英语不好,我是法语
我找到了解决办法。我调试 ebean RawSql class 并使我的映射与 ebean 映射匹配。
Ebean 切片 SELECT 每个逗号处的语句,所以我的 concat 函数被分成 3 个部分。
解决方案:
// Create sql
RawSql rawSql = RawSqlBuilder.parse(sqlStringBuilder.getStrStatement())
.columnMapping("g.id","id")
.columnMappingIgnore("concat(g.client_id")
.columnMappingIgnore("'-'")
.columnMappingIgnore("trim(to_char(n.number")
.columnMappingIgnore("'099999')))")
.columnMappingIgnore("( SELECT sum(total_ttc) from global_commission_invoice_line where global_commission_invoice_id= g.id )")
.create();