58 lines
1.9 KiB
C#
58 lines
1.9 KiB
C#
using Dapper;
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using VolPro.Core.Configuration;
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using VolPro.Core.EFDbContext;
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using VolPro.Core.Extensions.AutofacManager;
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using VolPro.Core.UserManager;
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using VolPro.Entity.DomainModels;
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namespace VolPro.Core.Generic
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{
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public class GenericSqlServerProvider : GenericDbProviderBase
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{
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protected override string LeftQuote => "[";
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protected override string RightQuote => "]";
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public GenericSqlServerProvider() : base()
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{
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}
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protected override string BuildPageSql(string baseWithWhereSql, string selectColumns, string orderBy, int page, int rows)
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{
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int offset = (page - 1) * rows;
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int end = page * rows;
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if (AppSetting.UseSqlserver2008)
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{
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return $@"
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SELECT {selectColumns}
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FROM (
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SELECT ROW_NUMBER() OVER ({orderBy}) AS RowNum, {selectColumns}
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FROM (
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{baseWithWhereSql}
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) AS S
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) AS X
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WHERE X.RowNum BETWEEN {offset + 1} AND {end}
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ORDER BY X.RowNum";
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}
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return $@"
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SELECT {selectColumns}
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FROM (
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{baseWithWhereSql}
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) AS S
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{orderBy}
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OFFSET {offset} ROWS FETCH NEXT {rows} ROWS ONLY";
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}
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protected override string BuildIdentitySql(TableColumnField keyColumn, bool batch = false)
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{
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// 单条插入：使用 SCOPE_IDENTITY()
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if (!batch)
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{
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return $";SELECT SCOPE_IDENTITY();";
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}
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// 批量插入：使用 OUTPUT INSERTED.[Id]，由上层拼接在 VALUES 之前
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return $" OUTPUT INSERTED.{LeftQuote}{keyColumn.ColumnName}{RightQuote}";
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}
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}
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}
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