protected PropertyAccessResult GetProperty(Expression entity, string propertyName)
{
var entityType = typeof(TDto);
var sanitizedPropertyName = propertyName.ToTitleCase();
var propertyAccessResult = _propertyAccessStrategy.Execute(entity, entityType, sanitizedPropertyName);
return(propertyAccessResult);
}
public IQueryable <TEntity> OrderBy(IQueryable <TEntity> collection, string fieldName, string direction)
{
var entityType = (typeof(TEntity));
var sanitizedFieldName = fieldName.ToTitleCase();
var propertyAccessResult = _propertyAccessStrategy.Execute(Expression.Parameter(entityType), entityType, sanitizedFieldName);
var expressionBuilder = _orderExpressionBuilderLocator.GetOrderExpressionBuilder(propertyAccessResult.PropertyType);
var orderExpression = expressionBuilder.Build(collection, fieldName, direction);
return(orderExpression);
}
public Expression CreateFilterExpression(Expression entity, string property, string @operator, string value)
{
var propertyAccess = _propertyAccessStrategy.Execute(entity, typeof(TDto), property);
var propertyType = propertyAccess.PropertyType;
var propertyExpression = propertyAccess.PropertyAccessExpression;
var valueExpression = _valueExpressionService.GetValueExpression(value, propertyType);
var filterExpressionFactory = _operatorExpressionFactoryService.GetExpressionFactory(@operator, propertyType);
var result = filterExpressionFactory.Create(propertyExpression, valueExpression);
return(result);
}
public PropertyAccessResult Execute(Expression entity, Type entityType, string propertyName)
{
if (_strategy == null)
{
return(null);
}
var rawResult = _strategy.Execute(entity, entityType, propertyName);
if (rawResult == null)
{
return(null);
}
var result = Decorate(rawResult);
return(result);
}