/// <summary>
/// Factory method that creates a new Sort which controls how the results will be sorted.
/// </summary>
/// <param name="expression">Exoression with the property to be used</param>
/// <param name="ascending">Indicates if sort must by ascending</param>
public static ISort Sort <T>(Expression <Func <T, object> > expression, bool ascending = true)
{
var propertyInfo = ReflectionHelper.GetProperty(expression) as PropertyInfo;
return(new Sort
{
PropertyName = propertyInfo.Name,
Ascending = ascending,
Properties = ReflectionHelper.GetNestedProperties <T>(propertyInfo.Name, '.', out var _)
});
/// <summary>
/// Factory method that creates a new IFieldPredicate predicate: [FieldName] [Operator] [Value]
/// Example: WHERE FirstName = 'Foo'
/// </summary>
/// <typeparam name="T">The type of the entity.</typeparam>
/// <param name="propertyName">Property name that returns the left operand [FieldName].</param>
/// <param name="op">The comparison operator.</param>
/// <param name="value">The value for the predicate.</param>
/// <param name="not">Effectively inverts the comparison operator. Example: WHERE FirstName <> 'Foo'.</param>
/// <param name="useColumPrefix">Indicates to use or not column prefix on generated SQL</param>
/// <param name="databaseFunction">Apply database function to field</param>
/// <param name="databaseFunctionParameters">Parameters to the database function</param>
/// <returns>An instance of IFieldPredicate.</returns>
public static IFieldPredicate Field <T>(string propertyName, Operator op, object value, bool not = false, bool useColumPrefix = true,
DatabaseFunction databaseFunction = DatabaseFunction.None, string databaseFunctionParameters = "") where T : class
{
var properties = ReflectionHelper.GetNestedProperties <T>(propertyName, '.', out string propertyInfoName);
var propertyInfo = typeof(T).GetProperties().SingleOrDefault(x => x.Name.Equals(propertyName, StringComparison.InvariantCultureIgnoreCase));
return(new FieldPredicate <T>
{
PropertyName = propertyInfo != null ? propertyInfo.Name : propertyInfoName,
Operator = op,
Value = value,
Not = not,
UseTableAlias = useColumPrefix,
DatabaseFunction = databaseFunction,
DatabaseFunctionParameters = databaseFunctionParameters,
Properties = properties
});
}
