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Add GetNullType

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This commit is contained in:
sunkaixuan 2022-10-28 09:29:12 +08:00
parent 0cf9a96737
commit baf4e3d45c
3 changed files with 21 additions and 0 deletions
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4
Src/Asp.Net/SqlSugar/Abstract/SqlBuilderProvider/SqlBuilderProvider.cs
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@ -363,6 +363,10 @@ namespace SqlSugar
{
return sql;
}
public virtual Type GetNullType(string tableName,string columnName)
{
return null;
}
private void BuilderTree(StringBuilder builder,ConditionalTree item,ref int indexTree, List<SugarParameter> parameters,ref int mainIndex)
{
var conditionals = ToConditionalCollections(item,ref indexTree, parameters);

1
Src/Asp.Net/SqlSugar/Interface/ISqlBuilder.cs
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@ -42,5 +42,6 @@ namespace SqlSugar
void RepairReplicationParameters(ref string appendSql, SugarParameter[] parameters, int addIndex);
KeyValuePair<string, SugarParameter[]> ConditionalModelToSql(List<IConditionalModel> models, int beginIndex = 0);
string GetUnionFomatSql(string sql);
Type GetNullType(string tableName,string columnName);
}
}

16
Src/Asp.Net/SqlSugar/Realization/PostgreSQL/SqlBuilder/PostgreSQLBuilder.cs
View File

@ -102,5 +102,21 @@ namespace SqlSugar
{
return " ( " + sql + " ) ";
}
public override Type GetNullType(string tableName, string columnName)
{
var columnInfo=this.Context.DbMaintenance.GetColumnInfosByTableName(tableName).FirstOrDefault(z => z.DbColumnName.EqualCase(columnName));
if (columnInfo != null)
{
var cTypeName=this.Context.Ado.DbBind.GetCsharpTypeName(UtilConstants.StringType.Name);
var value=UtilMethods.ConvertDataByTypeName(cTypeName, "");
if (value != null)
{
var key = "GetNullType_" + tableName + columnName;
return new ReflectionInoCacheService().GetOrCreate(key, () => value.GetType());
}
}
return null;
}
}
}