public static SqlParameter NewInputParameter(this IDbCommand cmd, string parameterName, object value, int?size)
{
if (parameterName.ExIsNullOrEmpty())
{
return(null);
}
if (!parameterName.StartsWith("@"))
{
parameterName = "@" + parameterName;
}
if (value == null)
{
var p = new SqlParameter(parameterName, DBNull.Value);
if (cmd != null)
{
cmd.Parameters.Add(p);
}
return(p);
}
var inputParameter = new SqlParameter(parameterName, AdoTypeMap.GetAdoType(value.GetType()))
{
Value = value
};
if (size != null && size > 0)
{
inputParameter.Size = (int)size;
}
if (cmd != null)
{
cmd.Parameters.Add(inputParameter);
}
return(inputParameter);
}
public static T ParseSqlRow <T>(DataRow row, bool useSmartPropertyNameMatching = false)
{
if (row == null)
{
return(default(T));
}
if (row.ItemArray.Length == 1 && AdoTypeMap.IsItAppropriateForSingleColumn(typeof(T)))
{
return((T)row[0]);
}
var instance = Activator.CreateInstance <T>();
foreach (var propertyInfo in typeof(T).GetProperties())
{
var tt = Nullable.GetUnderlyingType(propertyInfo.PropertyType) ?? propertyInfo.PropertyType;
//eğer dto'daki property dizi ise devam et.
if (tt.IsArray)
{
var multipleColumnAttribute = propertyInfo.GetMyAttribute <SqlParserMultipleColumnAttribute>();
if (multipleColumnAttribute != null)
{
//We are searching for same prefixed property count.
//For example if result was like this:
// Result =>
// Name
// Surname
// Prop1
// Prop2
// Prop3
//The property prefix would then be Prop.
//Because you can set start number, counting would start at that property. Default = 1.
//In the result we would have an array of type (which is inferred from the properties)
//amounting 3 items.
var currentColumn = multipleColumnAttribute.StartNumber;
var columnCount = 0;
while (row.Table.Columns.Contains(multipleColumnAttribute.PropertyPrefix + currentColumn))
{
currentColumn++;
columnCount++;
}
var arrayInstance = Activator.CreateInstance(propertyInfo.PropertyType, columnCount);
var array = arrayInstance as Array;
if (array != null)
{
for (var i = 0; i < columnCount; i++)
{
array.SetValue(AdoHelpers.SafeConvertType(row[multipleColumnAttribute.PropertyPrefix +
(multipleColumnAttribute.StartNumber + i)],
propertyInfo.PropertyType.GetElementType()), i);
}
propertyInfo.SetValue(instance, array);
}
}
}
else
{
string column = null;
//if attribute is used, then this is high priority.
var resultColumnAttribute = propertyInfo.GetMyAttribute <SqlResultColumnAttribute>();
if (resultColumnAttribute != null)
{
column = resultColumnAttribute.FieldName;
}
//if still we dont a have a field name then search with property name
if (column.ExIsNullOrEmpty())
{
column = row.Table.Columns.Contains(propertyInfo.Name)
? propertyInfo.Name
: null;
}
//and if still dont have a field name and if smart matching is enabled
//then search the property name in the result set's columns collection.
//But this search may not always yield the best result. Because search is done
//in substrings and case insensitive.
if (column.ExIsNullOrEmpty() && useSmartPropertyNameMatching)
{
var columnNameMatch = smartMatch(row, propertyInfo.Name);
if (columnNameMatch != null)
{
column = columnNameMatch.ColumnName;
}
}
//At this point just give up. Go to next property.
if (column == null)
{
continue;
}
var value = AdoHelpers.SafeConvertType(row[column], tt);
propertyInfo.SetValue(instance, value);
}
}
return(instance);
}
