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修复 SqlServer CodeFirst 迁移结构时，因日期默认值的语法错误

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This commit is contained in:
28810
2019-02-27 17:50:50 +08:00
parent 9d87c69fb2
commit 3ec5081d1b
2 changed files with 38 additions and 4 deletions
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18
FreeSql/SqlServer/SqlServerCodeFirst.cs
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@ -242,10 +242,10 @@ use " + database, tboldname ?? tbname);
if (tbcol.Attribute.DbType.StartsWith(tbstructcol.sqlType, StringComparison.CurrentCultureIgnoreCase) == false)
insertvalue = $"cast({insertvalue} as {tbcol.Attribute.DbType.Split(' ').First()})";
if (tbcol.Attribute.IsNullable != tbstructcol.is_nullable)
insertvalue = $"isnull({insertvalue},{_commonUtils.FormatSql("{0}", tbcol.Attribute.DbDefautValue)})";
insertvalue = $"isnull({insertvalue},{_commonUtils.FormatSql("{0}", GetTransferDbDefaultValue(tbcol))})";
} else if (tbcol.Attribute.IsNullable == false)
insertvalue = _commonUtils.FormatSql("{0}", tbcol.Attribute.DbDefautValue);
sb.Append(insertvalue).Append(", ");
insertvalue = _commonUtils.FormatSql("{0}", GetTransferDbDefaultValue(tbcol));
sb.Append(insertvalue.Replace("'", "''")).Append(", ");
}
sb.Remove(sb.Length - 2, 2).Append(" FROM ").Append(tablename).Append(" WITH (HOLDLOCK TABLOCKX)');\r\n");
if (idents) sb.Append("SET IDENTITY_INSERT ").Append(tmptablename).Append(" OFF;\r\n");
@ -263,6 +263,18 @@ use " + database, tboldname ?? tbname);
}
}
}
object GetTransferDbDefaultValue(ColumnInfo col) {
var ddv = col.Attribute.DbDefautValue;
if (ddv == null) return ddv;
if (ddv is DateTime || ddv is DateTime?) {
var dt = (DateTime)ddv;
if (col.Attribute.DbType.Contains("SMALLDATETIME") && dt < new DateTime(1900, 1, 1)) ddv = new DateTime(1900, 1, 1);
else if (col.Attribute.DbType.Contains("DATETIME") && dt < new DateTime(1753, 1, 1)) ddv = new DateTime(1753, 1, 1);
else if (col.Attribute.DbType.Contains("DATE") && dt < new DateTime(0001, 1, 1)) ddv = new DateTime(0001, 1, 1);
}
return ddv;
}
static object syncStructureLock = new object();
ConcurrentDictionary<string, bool> dicSyced = new ConcurrentDictionary<string, bool>();