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- 增加 创建表时指定字段位置，如：[Column(Position = 1]，可为负数即反方向位置；

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This commit is contained in:
28810
2019-09-04 22:52:05 +08:00
parent 4d2406aa1e
commit 6e75a8cebc
13 changed files with 103 additions and 36 deletions
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10
Providers/FreeSql.Provider.MySql/MySqlCodeFirst.cs
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@ -132,7 +132,7 @@ namespace FreeSql.MySql
{
//创建表
sb.Append("CREATE TABLE IF NOT EXISTS ").Append(_commonUtils.QuoteSqlName($"{tbname[0]}.{tbname[1]}")).Append(" ( ");
foreach (var tbcol in tb.Columns.Values)
foreach (var tbcol in tb.ColumnsByPosition)
{
sb.Append(" \r\n ").Append(_commonUtils.QuoteSqlName(tbcol.Attribute.Name)).Append(" ");
sb.Append(tbcol.Attribute.DbType);
@ -197,7 +197,7 @@ where a.table_schema in ({0}) and a.table_name in ({1})", tboldname ?? tbname);
if (istmpatler == false)
{
var existsPrimary = ExecuteScalar(tbname[0], _commonUtils.FormatSql("select 1 from information_schema.key_column_usage where table_schema={0} and table_name={1} and constraint_name = 'PRIMARY' limit 1", tbname));
foreach (var tbcol in tb.Columns.Values)
foreach (var tbcol in tb.ColumnsByPosition)
{
var isIdentityChanged = tbcol.Attribute.IsIdentity == true && tbcol.Attribute.DbType.IndexOf("AUTO_INCREMENT", StringComparison.CurrentCultureIgnoreCase) == -1;
if (tbstruct.TryGetValue(tbcol.Attribute.Name, out var tbstructcol) ||
@ -263,7 +263,7 @@ where a.constraint_schema IN ({0}) and a.table_name IN ({1})", tboldname ?? tbna
var tmptablename = _commonUtils.QuoteSqlName($"{tbname[0]}.FreeSqlTmp_{tbname[1]}");
//创建临时表
sb.Append("CREATE TABLE IF NOT EXISTS ").Append(tmptablename).Append(" ( ");
foreach (var tbcol in tb.Columns.Values)
foreach (var tbcol in tb.ColumnsByPosition)
{
sb.Append(" \r\n ").Append(_commonUtils.QuoteSqlName(tbcol.Attribute.Name)).Append(" ");
sb.Append(tbcol.Attribute.DbType);
@ -286,10 +286,10 @@ where a.constraint_schema IN ({0}) and a.table_name IN ({1})", tboldname ?? tbna
sb.Remove(sb.Length - 1, 1);
sb.Append("\r\n) Engine=InnoDB;\r\n");
sb.Append("INSERT INTO ").Append(tmptablename).Append(" (");
foreach (var tbcol in tb.Columns.Values)
foreach (var tbcol in tb.ColumnsByPosition)
sb.Append(_commonUtils.QuoteSqlName(tbcol.Attribute.Name)).Append(", ");
sb.Remove(sb.Length - 2, 2).Append(")\r\nSELECT ");
foreach (var tbcol in tb.Columns.Values)
foreach (var tbcol in tb.ColumnsByPosition)
{
var insertvalue = "NULL";
if (tbstruct.TryGetValue(tbcol.Attribute.Name, out var tbstructcol) ||