/// <summary>
/// Execute the query and return a new instance of T with the first row of results
/// </summary>
/// <typeparam name="T">Object type</typeparam>
/// <returns>First row of results</returns>
/// <example>
/// <code>
/// Employee emp = cmd.ExecuteRow<Employee>();
/// </code>
/// <remarks>
/// Result object property (ex. Employee.Name) may be tagged with the ColumnAttribute
/// to set which column name (ex. [Column("Name")] must be associated to this property.
/// </remarks>
/// </example>
public virtual T ExecuteRow <T>()
{
// Primitive type: Executable<string>()
if (TypeExtension.IsPrimitive(typeof(T)))
{
return(this.ExecuteScalar <T>());
}
else
{
// Get DataTable
var rows = ExecuteInternalCommand(() =>
{
using (DbDataReader dr = this.Command.ExecuteReader(System.Data.CommandBehavior.SingleRow))
{
// Dynamic type: Executable<dynamic>()
if (DynamicConvertor.IsDynamic(typeof(T)))
{
return(DataReaderConvertor.ToDynamic <T>(dr));
}
// Object type: Executable<Employee>()
else
{
return(DataReaderConvertor.ToType <T>(dr).Rows);
}
}
});
// Return
return(rows?.Any() == true?rows.First() : default(T));
}
}
/// <summary>
/// Execute the query and return an array of new instances of typed results filled with data table result.
/// </summary>
/// <typeparam name="T">Object type</typeparam>
/// <returns>Array of typed results</returns>
/// <example>
/// <code>
/// Employee[] emp = cmd.ExecuteTable<Employee>();
/// var x = cmd.ExecuteTable<Employee>();
/// </code>
/// <remarks>
/// Result object property (ex. Employee.Name) may be tagged with the ColumnAttribute
/// to set which column name (ex. [Column("Name")] must be associated to this property.
/// </remarks>
/// </example>
public async virtual Task <IEnumerable <T> > ExecuteTableAsync <T>()
{
return(await ExecuteInternalCommand(async() =>
{
using (DbDataReader dr = await this.Command.ExecuteReaderAsync())
{
// Primitive type: Executable<string>()
if (TypeExtension.IsPrimitive(typeof(T)))
{
return await DataReaderConvertor.ToPrimitivesAsync <T>(dr);
}
// Dynamic type: Executable<dynamic>()
else if (DynamicConvertor.IsDynamic(typeof(T)))
{
return await DataReaderConvertor.ToDynamicAsync <T>(dr);
}
// Object type: Executable<Employee>()
else
{
return (await DataReaderConvertor.ToTypeAsync <T>(dr)).Rows;
}
}
}));
}
/// <summary>
/// Execute the query and return an array of new instances of typed results filled with data table result.
/// </summary>
/// <typeparam name="T">Object type</typeparam>
/// <returns>Array of typed results</returns>
/// <example>
/// <code>
/// Employee[] emp = cmd.ExecuteTable<Employee>();
/// var x = cmd.ExecuteTable<Employee>();
/// </code>
/// <remarks>
/// Result object property (ex. Employee.Name) may be tagged with the ColumnAttribute
/// to set which column name (ex. [Column("Name")] must be associated to this property.
/// </remarks>
/// </example>
public virtual IEnumerable <T> ExecuteTable <T>()
{
return(ExecuteInternalCommand(() =>
{
using (DbDataReader dr = this.Command.ExecuteReader())
{
// Primitive type: Executable<string>()
if (TypeExtension.IsPrimitive(typeof(T)))
{
return DataReaderConvertor.ToPrimitives <T>(dr);
}
// Dynamic type: Executable<dynamic>()
else if (DynamicConvertor.IsDynamic(typeof(T)))
{
return DataReaderConvertor.ToDynamic <T>(dr);
}
// Object type: Executable<Employee>()
else
{
return DataReaderConvertor.ToType <T>(dr).Rows;
}
}
}));
}
/// <summary>
/// Execute the query and return a <see cref="System.Data.DataSet"/> object filled with data table results.
/// </summary>
/// <returns>Classic <see cref="System.Data.DataSet"/> object.</returns>
public virtual System.Data.DataSet ExecuteDataSet()
{
return(ExecuteInternalCommand(() =>
{
using (DbDataReader dr = this.Command.ExecuteReader(System.Data.CommandBehavior.KeyInfo))
{
return DataReaderConvertor.ToSystemDataSet(dr);
}
}));
}
/// <summary>
/// Execute the query and return a <see cref="System.Data.DataSet"/> object filled with data table results.
/// </summary>
/// <returns>Classic <see cref="System.Data.DataSet"/> object.</returns>
public async virtual Task <System.Data.DataSet> ExecuteDataSetAsync()
{
return(await ExecuteInternalCommand(async() =>
{
using (DbDataReader dr = await this.Command.ExecuteReaderAsync(System.Data.CommandBehavior.KeyInfo))
{
return DataReaderConvertor.ToSystemDataSet(dr);
}
}));
}
/// <summary>
/// Execute the query and return a list or array of new instances of typed results filled with data table results.
/// </summary>
/// <typeparam name="T">Object type for first table</typeparam>
/// <typeparam name="U">Object type for second table</typeparam>
/// <returns>List of array of typed results</returns>
/// <example>
/// <code>
/// var data = cmd.ExecuteDataSet<Employee, Department>();
/// var employees = data.Item1;
/// var departments = data.Item2;
/// </code>
/// </example>
public virtual Tuple <IEnumerable <T>, IEnumerable <U> > ExecuteDataSet <T, U>(T typeOfItem1, U typeOfItem2)
{
var datasets = ExecuteInternalCommand(() =>
{
using (DbDataReader dr = this.Command.ExecuteReader())
{
return(DataReaderConvertor.ToMultipleTypes <T, U, NoType, NoType, NoType>(dr, forAnonymousTypes: true));
}
});
return(new Tuple <IEnumerable <T>, IEnumerable <U> >
(
datasets.Item1,
datasets.Item2
));
}
/// <summary>
/// Execute the query and return a list or array of new instances of typed results filled with data table results.
/// </summary>
/// <typeparam name="T">Object type for first table</typeparam>
/// <typeparam name="U">Object type for second table</typeparam>
/// <returns>List of array of typed results</returns>
/// <example>
/// <code>
/// var data = cmd.ExecuteDataSet<Employee, Department>();
/// var employees = data.Item1;
/// var departments = data.Item2;
/// </code>
/// </example>
public async virtual Task <Tuple <IEnumerable <T>, IEnumerable <U> > > ExecuteDataSetAsync <T, U>(T typeOfItem1, U typeOfItem2)
{
var datasets = await ExecuteInternalCommand(async() =>
{
using (DbDataReader dr = await this.Command.ExecuteReaderAsync())
{
return(await DataReaderConvertor.ToMultipleTypesAsync <T, U, NoType, NoType, NoType>(dr, forAnonymousTypes: true));
}
});
return(new Tuple <IEnumerable <T>, IEnumerable <U> >
(
datasets.Item1,
datasets.Item2
));
}
/// <summary>
/// Execute the query and return an array of new instances of typed results filled with data table result.
/// </summary>
/// <typeparam name="T">Object type</typeparam>
/// <param name="itemOftype"></param>
/// <returns>Array of typed results</returns>
/// <example>
/// <code>
/// Employee emp = new Employee();
/// var x = cmd.ExecuteTable(new { emp.Age, emp.Name });
/// var y = cmd.ExecuteTable(new { Age = 0, Name = "" });
/// </code>
/// <remarks>
/// Result object property (ex. Employee.Name) may be tagged with the ColumnAttribute
/// to set which column name (ex. [Column("Name")] must be associated to this property.
/// </remarks>
/// </example>
public virtual IEnumerable <T> ExecuteTable <T>(T itemOftype)
{
return(ExecuteInternalCommand(() =>
{
using (DbDataReader dr = this.Command.ExecuteReader())
{
if (TypeExtension.IsPrimitive(typeof(T)))
{
return DataReaderConvertor.ToPrimitives <T>(dr);
}
else
{
return DataReaderConvertor.ToAnonymous <T>(dr);
}
}
}));
}
/// <summary>
/// Execute the query and return a list or array of new instances of typed results filled with data table results.
/// </summary>
/// <typeparam name="T">Object type for first table</typeparam>
/// <typeparam name="U">Object type for second table</typeparam>
/// <typeparam name="V">Object type for third table</typeparam>
/// <returns>List of array of typed results</returns>
/// <example>
/// <code>
/// var data = cmd.ExecuteDataSet<Employee, Department>();
/// var employees = data.Item1;
/// var departments = data.Item2;
/// </code>
/// </example>
public virtual Tuple <IEnumerable <T>, IEnumerable <U>, IEnumerable <V> > ExecuteDataSet <T, U, V>()
{
var datasets = ExecuteInternalCommand(() =>
{
using (DbDataReader dr = this.Command.ExecuteReader())
{
return(DataReaderConvertor.ToMultipleTypes <T, U, V, NoType, NoType>(dr));
}
});
return(new Tuple <IEnumerable <T>, IEnumerable <U>, IEnumerable <V> >
(
datasets.Item1,
datasets.Item2,
datasets.Item3
));
}
/// <summary>
/// Execute the query and return an array of new instances of typed results filled with data table result.
/// </summary>
/// <typeparam name="T">Object type</typeparam>
/// <param name="itemOftype"></param>
/// <returns>Array of typed results</returns>
/// <example>
/// <code>
/// Employee emp = new Employee();
/// var x = cmd.ExecuteTable(new { emp.Age, emp.Name });
/// var y = cmd.ExecuteTable(new { Age = 0, Name = "" });
/// </code>
/// <remarks>
/// Result object property (ex. Employee.Name) may be tagged with the ColumnAttribute
/// to set which column name (ex. [Column("Name")] must be associated to this property.
/// </remarks>
/// </example>
public async virtual Task <IEnumerable <T> > ExecuteTableAsync <T>(T itemOftype)
{
return(await ExecuteInternalCommand(async() =>
{
using (DbDataReader dr = await this.Command.ExecuteReaderAsync())
{
if (TypeExtension.IsPrimitive(typeof(T)))
{
return await DataReaderConvertor.ToPrimitivesAsync <T>(dr);
}
else
{
return await DataReaderConvertor.ToAnonymousAsync <T>(dr);
}
}
}));
}
/// <summary>
/// Execute the query and return a list or array of new instances of typed results filled with data table results.
/// </summary>
/// <typeparam name="T">Object type for first table</typeparam>
/// <typeparam name="U">Object type for second table</typeparam>
/// <typeparam name="V">Object type for third table</typeparam>
/// <returns>List of array of typed results</returns>
/// <example>
/// <code>
/// var data = cmd.ExecuteDataSet<Employee, Department>();
/// var employees = data.Item1;
/// var departments = data.Item2;
/// </code>
/// </example>
public async virtual Task <Tuple <IEnumerable <T>, IEnumerable <U>, IEnumerable <V> > > ExecuteDataSetAsync <T, U, V>()
{
var datasets = await ExecuteInternalCommand(async() =>
{
using (DbDataReader dr = await this.Command.ExecuteReaderAsync())
{
return(await DataReaderConvertor.ToMultipleTypesAsync <T, U, V, NoType, NoType>(dr));
}
});
return(new Tuple <IEnumerable <T>, IEnumerable <U>, IEnumerable <V> >
(
datasets.Item1,
datasets.Item2,
datasets.Item3
));
}
/// <summary>
/// Execute the query and return an array of new instances of typed results filled with data table result.
/// </summary>
/// <typeparam name="T"></typeparam>
/// <param name="converter"></param>
/// <returns>Array of typed results</returns>
public virtual IEnumerable <T> ExecuteTable <T>(Func <Schema.DataRow, T> converter)
{
var table = ExecuteInternalCommand(() =>
{
using (DbDataReader dr = this.Command.ExecuteReader())
{
return(DataReaderConvertor.ToDataTable(dr));
}
});
if (table != null && table.Rows != null)
{
return(table.Rows.Select(row => converter.Invoke(row)));
}
else
{
return new T[] { }
};
}
/// <summary>
/// Execute the query and return an array of new instances of typed results filled with data table result.
/// </summary>
/// <typeparam name="T"></typeparam>
/// <param name="converter"></param>
/// <returns>Array of typed results</returns>
public async virtual Task <IEnumerable <T> > ExecuteTableAsync <T>(Func <Schema.DataRow, Task <T> > converter)
{
var table = await ExecuteInternalCommand(async() =>
{
using (DbDataReader dr = await this.Command.ExecuteReaderAsync())
{
return(await DataReaderConvertor.ToDataTableAsync(dr));
}
});
if (table != null && table.Rows != null)
{
return(table.Rows.Select(async row => await converter.Invoke(row)).Select(i => i.GetAwaiter().GetResult()));
}
else
{
return new T[] { }
};
}
/// <summary>
/// Execute the query and fill the specified T object with the first row of results
/// </summary>
/// <typeparam name="T">Object type</typeparam>
/// <param name="itemOftype"></param>
/// <returns>First row of results</returns>
/// <example>
/// <code>
/// Employee emp = new Employee();
/// var x = cmd.ExecuteRow(new { emp.Age, emp.Name });
/// var y = cmd.ExecuteRow(new { Age = 0, Name = "" });
/// var z = cmd.ExecuteRow(emp);
/// </code>
/// <remarks>
/// Result object property (ex. Employee.Name) may be tagged with the ColumnAttribute
/// to set which column name (ex. [Column("Name")] must be associated to this property.
/// </remarks>
/// </example>
public virtual T ExecuteRow <T>(T itemOftype)
{
if (TypeExtension.IsPrimitive(typeof(T)))
{
return(this.ExecuteScalar <T>());
}
else
{
// Get DataTable
var rows = ExecuteInternalCommand(() =>
{
using (DbDataReader dr = this.Command.ExecuteReader(System.Data.CommandBehavior.SingleRow))
{
return(DataReaderConvertor.ToAnonymous <T>(dr));
}
});
// Return
return(rows?.Any() == true?rows.First() : default(T));
}
}
/// <summary>
/// Execute the query and fill the specified T object with the first row of results
/// </summary>
/// <typeparam name="T">Object type</typeparam>
/// <param name="converter"></param>
/// <returns>First row of results</returns>
public virtual T ExecuteRow <T>(Func <Schema.DataRow, T> converter)
{
if (TypeExtension.IsPrimitive(typeof(T)))
{
return(this.ExecuteScalar <T>());
}
else
{
// Get DataRow
var table = ExecuteInternalCommand(() =>
{
using (DbDataReader dr = this.Command.ExecuteReader(System.Data.CommandBehavior.SingleRow))
{
return(DataReaderConvertor.ToDataTable(dr));
}
});
var row = table?.Rows?.FirstOrDefault();
// Return
return(row != null?converter.Invoke(row) : default(T));
}
}
/// <summary>
/// Execute the query and fill the specified T object with the first row of results
/// </summary>
/// <typeparam name="T">Object type</typeparam>
/// <param name="converter"></param>
/// <returns>First row of results</returns>
public async virtual Task <T> ExecuteRowAsync <T>(Func <Schema.DataRow, Task <T> > converter)
{
if (TypeExtension.IsPrimitive(typeof(T)))
{
return(await this.ExecuteScalarAsync <T>());
}
else
{
// Get DataRow
var table = await ExecuteInternalCommand(async() =>
{
using (DbDataReader dr = await this.Command.ExecuteReaderAsync(System.Data.CommandBehavior.SingleRow))
{
return(await DataReaderConvertor.ToDataTableAsync(dr));
}
});
var row = table?.Rows?.FirstOrDefault();
// Return
return(row != null ? await converter.Invoke(row) : default(T));
}
}
