public void AddWhere(ColumnRelevanceMapper column)
{
if (column != null)
{
Where.Add(column);
}
}
public void AddHeader(ColumnRelevanceMapper column)
{
if (column != null)
{
Header.Add(column);
}
}
public QuerySQLHelper AddWhere(ColumnRelevanceMapper column)
{
if (column != null)
{
Where.Add(column);
}
return(this);
}
public QuerySQLHelper AddQuery(ColumnRelevanceMapper column)
{
lock (_lock)
{
Query.Add(column);
}
return(this);
}
public QuerySQLHelper()
{
Query = new List <ColumnRelevanceMapper>();
Top = new ColumnRelevanceMapper();
Table = new List <TableRelevanceMapper>();
Where = new List <ColumnRelevanceMapper>();
Orderby = new List <String>();
}
private String ConditionConvert(ColumnRelevanceMapper column, bool isNull = false)
{
StringBuilder sb = new StringBuilder();
//如果 null == item.id 的写法, 会解析成
//column.ColumnName == null && column.SqlOperatorEnum == SqlOperatorEnum.None
// null,那么就直接返回"", 接下来的 == item.id 会传递false,然后解析 item.id is null
if (column.ColumnName == null && column.SqlOperatorEnum == SqlOperatorEnum.None)
{
return("");
}
//如果是 item.id == null 中写法 那么 == null 则返回 is null
if (isNull || column.ColumnName == null)
{
column.SqlOperatorEnum = SqlEnumConvert(column.SqlOperatorEnum);
}
if (column.SqlOperatorEnum == SqlOperatorEnum.EqualNotNull ||
column.SqlOperatorEnum == SqlOperatorEnum.EqualNull)
{
String str = "";
if (!String.IsNullOrEmpty(column.ColumnName))
{
Type t = column.TableName;
String tableName = EntityTableMapper.GetTableName(t);
String columnName = EntityTableMapper.GetColoumName(t, column.ColumnName);
str = $"{tableName}.{columnName}";
}
return($"{str} {column.SqlOperatorEnum.GetOperator()}");
}
if (column.SqlOperatorEnum != SqlOperatorEnum.None)
{
sb.Append(column.SqlOperatorEnum.GetOperator());
}
//如果是 直接传递字符串 如 id in (select id from xxx)中,则 括号中则直接拼接,而不用@数字
//如果是 item.id == 1 中的 == 1,那么只 保存 = @ColumnName
if (column.TableName == null)
{
if (column.ColumnName.IndexOf("(") != -1)
{
sb.Append($" {column.ColumnName} ");
}
else
{
sb.Append($"@{column.ColumnName}");
}
}
//如果是 item.id == 1 中的 item.id ,那么就保存 tablename.id
else
{
Type t = column.TableName;
String tableName = EntityTableMapper.GetTableName(t);
String columnName = EntityTableMapper.GetColoumName(t, column.ColumnName);
sb.Append($" {tableName}.{columnName} ");
}
return(sb.ToString());
}
public async Task <IEnumerable <Tuple <T, K, P> > > ExecuteReaderAsync <K, P>(IBatch batch, List <ColumnRelevanceMapper> mapper) where K : IEntity, new() where P : IEntity, new()
{
if (SqlExecuteExtensionAction.Instance.BatchAction != null)
{
SqlExecuteExtensionAction.Instance.AddContext(batch);
}
List <Tuple <T, K, P> > entitybuffer = new List <Tuple <T, K, P> >(128);
using (var Connection = Create.Invoke())
{
var reader = await Connection.ExecuteReaderAsync(batch.SqlBuilder, batch.DynamicParameters, commandTimeout : 3600);
while (reader.Read())
{
T t = new T();
Type t1 = typeof(T);
K k = new K();
Type k1 = typeof(K);
P p = new P();
Type p1 = typeof(P);
for (Int32 i = 0; i < reader.FieldCount; i++)
{
Object obj = reader.GetValue(i);
if (obj != null)
{
ColumnRelevanceMapper column = mapper[i];
if (column.TableName == t1)
{
PropertyValueExpression <T> .SetValue(t, column.ColumnName, obj);
}
else if (column.TableName == k1)
{
PropertyValueExpression <K> .SetValue(k, column.ColumnName, obj);
}
else
{
PropertyValueExpression <P> .SetValue(p, column.ColumnName, obj);
}
}
}
Tuple <T, K, P> tuple = new Tuple <T, K, P>(t, k, p);
entitybuffer.Add(tuple);
}
}
return(entitybuffer);
}
private String ConditionConvert(ColumnRelevanceMapper column, bool isNull = false)
{
StringBuilder sb = new StringBuilder();
//如果 null == item.id 中写法 null,那么返回"", == item.id 返回item.id is null
//如果是 item.id == null 中写法 那么 == null 则返回 is null
if (column.ColumnName == null && column.SqlOperatorEnum == SqlOperatorEnum.None)
{
return("");
}
if (isNull || column.ColumnName == null)
{
column.SqlOperatorEnum = SqlEnumConvert(column.SqlOperatorEnum);
}
if (column.SqlOperatorEnum == SqlOperatorEnum.EqualNotNull ||
column.SqlOperatorEnum == SqlOperatorEnum.EqualNull)
{
String str = "";
if (!String.IsNullOrEmpty(column.ColumnName))
{
Type t = column.TableName;
String tableName = EntityTableMapper.GetTableName(t);
String columnName = EntityTableMapper.GetColoumName(t, column.ColumnName);
str = $"{tableName}.{columnName}";
}
return($"{str} {column.SqlOperatorEnum.GetOperator()}");
}
if (column.SqlOperatorEnum != SqlOperatorEnum.None)
{
sb.Append(column.SqlOperatorEnum.GetOperator());
}
//如果是 item.id = 1 中的 = 1,那么只 保存 = @ColumnName
if (column.TableName == null)
{
sb.Append($"@{column.ColumnName}");
}
else
{
Type t = column.TableName;
String tableName = EntityTableMapper.GetTableName(t);
String columnName = EntityTableMapper.GetColoumName(t, column.ColumnName);
sb.Append($" {tableName}.{columnName} ");
}
return(sb.ToString());
}
private void SetNoneWhere(Type t)
{
String pk = EntityTableMapper.GetPkColumn(t);
if (String.IsNullOrEmpty(pk))
{
throw new ArgumentException("请使用带主键的或者添加删选条件");
}
String pkValue = ValuePairs[pk].ColumnName;
ColumnRelevanceMapper column = new ColumnRelevanceMapper();
column.ColumnName = pk;
column.TableName = t;
ColumnRelevanceMapper value = new ColumnRelevanceMapper();
value.ColumnName = pk;
value.SqlOperatorEnum = SqlOperatorEnum.Equal;
Reduce.AddWhere(column);
Reduce.AddWhere(value);
}
public BatchParameterReduce AddWhere(ColumnRelevanceMapper column)
{
RenewalHelper.AddWhere(column);
return(this);
}
