/// <summary>
/// Generates the conditional query.
/// </summary>
/// <typeparam name="T"></typeparam>
/// <param name="listDtoObject">The list dto object.</param>
/// <returns></returns>
/// <author>Mauricio Suárez Robelto</author>
#region ConditionalQuery
public static Expression <Func <U, bool> > GeneratePredicateQuery <U, T>(List <T> listDtoObject) where T : BaseDto
{
var predicate = PredicateBuilder.False <U>();
if (listDtoObject.Count() > 0)
{
string referenceWildcard = "ReferenceTable";
int lenghtReferenceWildcard = referenceWildcard.Length;
string typeWildcard = "System.Nullable`1[System.Boolean]";
PropertyInfo[] properties = listDtoObject[0].GetType().GetProperties();
int CurrentObject = 0;
foreach (object item in listDtoObject)
{
CurrentObject++;
var predicateNew = PredicateBuilder.True <U>();
foreach (PropertyInfo property in properties)
{
if (ConditionalQuery.IsGenericType(property.PropertyType))
{
if (property.GetValue(item, null) != null)
{
bool resultIsFilter = true;
if (property.PropertyType.ToString() == typeWildcard)
{
string validateFilter = property.Name;
if ((validateFilter.Substring(0, validateFilter.Length < lenghtReferenceWildcard ? validateFilter.Length : lenghtReferenceWildcard)) == referenceWildcard)
{
resultIsFilter = false;
}
}
if (resultIsFilter)
{
ParameterExpression carParam = Expression.Parameter(typeof(U));
Expression aLeft = Expression.PropertyOrField(carParam, property.Name);
Expression aRight = Expression.Constant(property.GetValue(item, null));
Expression makeEqualsPredicate = Expression.Equal(aLeft, aRight);
Expression <Func <U, bool> > predicate1 = Expression.Lambda <Func <U, bool> >(makeEqualsPredicate, carParam);
predicateNew = predicateNew.And(predicate1);
}
}
}
}
predicateNew.Compile();
predicate = predicate.Or(predicateNew.Expand());
}
}
predicate.Compile();
return(predicate);
}
/// <summary>
/// Validates the includes.
/// </summary>
/// <param name="item">The item.</param>
/// <param name="includes">The includes.</param>
/// <param name="typeWildcard">The type wildcard.</param>
/// <param name="parentTable">The parent table.</param>
/// <author>Mauricio Suárez Robelto</author>
public static void ValidateIncludes(object item, List <string> includes, string typeWildcard, string parentTable)
{
if (item != null)
{
PropertyInfo[] properties = item.GetType().GetProperties();
foreach (PropertyInfo property in properties)
{
if (property.GetValue(item, null) != null)
{
if (ConditionalQuery.IsGenericType(property.PropertyType))
{
if (property.PropertyType.ToString() == typeWildcard)
{
bool?valueProperty = (bool?)property.GetValue(item, null);
if (valueProperty.Value)
{
includes.Add(parentTable + "." + property.Name);
}
}
}
else
{
if (property.PropertyType.IsGenericType)
{
IList listNewObject = (IList)property.GetValue(item, null);
if (listNewObject.Count > 0)
{
ConditionalQuery.ValidateIncludes(listNewObject[0], includes, typeWildcard, listNewObject[0].GetType().Name);
}
}
else
{
ConditionalQuery.ValidateIncludes(property.GetValue(item, null), includes, typeWildcard, property.GetValue(item, null).GetType().Name);
}
}
}
}
}
}
/// <summary>
/// Generates the parameters conditional query.
/// </summary>
/// <typeparam name="T"></typeparam>
/// <param name="listDtoObject">The list dto object.</param>
/// <returns></returns>
/// <author>Mauricio Suárez Robelto</author>
public static ObjectParameter[] GenerateParametersConditionalQuery <T>(List <T> listDtoObject) where T : BaseDto
{
List <ObjectParameter> parameters = new List <ObjectParameter>();
if (listDtoObject.Count() > 0)
{
PropertyInfo[] properties = listDtoObject[0].GetType().GetProperties();
int CurrentObject = 0;
foreach (object item in listDtoObject)
{
CurrentObject++;
foreach (PropertyInfo property in properties)
{
if (ConditionalQuery.IsGenericType(property.PropertyType))
{
if (property.GetValue(item, null) != null)
{
string validate = property.PropertyType.ToString();
if (validate == "System.Nullable`1[System.DateTime]")
{
DateTime filterDate = (DateTime)property.GetValue(item, null);
parameters.Add(new ObjectParameter(property.Name + "Ini" + CurrentObject.ToString(), new DateTime(filterDate.Year, filterDate.Month, filterDate.Day, 0, 0, 0)));
parameters.Add(new ObjectParameter(property.Name + "End" + CurrentObject.ToString(), new DateTime(filterDate.Year, filterDate.Month, filterDate.Day, 23, 59, 59)));
}
else
{
parameters.Add(new ObjectParameter(property.Name + CurrentObject.ToString(), property.GetValue(item, null)));
}
}
}
}
}
}
return(parameters.ToArray());
}
/// <summary>
/// Generates the conditional query.
/// </summary>
/// <typeparam name="T"></typeparam>
/// <param name="listDtoObject">The list dto object.</param>
/// <returns></returns>
/// <author>Mauricio Suárez Robelto</author>
public static string GenerateConditionalQuery <T>(List <T> listDtoObject) where T : BaseDto
{
if (listDtoObject.Count() > 0)
{
string referenceWildcard = "ReferenceTable";
int lenghtReferenceWildcard = referenceWildcard.Length;
string typeWildcard = "System.Nullable`1[System.Boolean]";
StringBuilder sbResult = new StringBuilder();
StringBuilder sb = new StringBuilder();
PropertyInfo[] properties = listDtoObject[0].GetType().GetProperties();
int CurrentObject = 0;
foreach (object item in listDtoObject)
{
CurrentObject++;
int i = 1;
foreach (PropertyInfo property in properties)
{
if (ConditionalQuery.IsGenericType(property.PropertyType))
{
if (property.GetValue(item, null) != null)
{
bool resultIsFilter = true;
if (property.PropertyType.ToString() == typeWildcard)
{
string validateFilter = property.Name;
if ((validateFilter.Substring(0, validateFilter.Length < lenghtReferenceWildcard ? validateFilter.Length : lenghtReferenceWildcard)) == referenceWildcard)
{
resultIsFilter = false;
}
}
if (resultIsFilter)
{
string validate = property.PropertyType.ToString();
if (validate == "System.Nullable`1[System.DateTime]")
{
sb.Append((i != 1 ? " AND (" : ""));
sb.Append("it." + property.Name).Append(" >= ").Append(("@" + property.Name + "Ini" + CurrentObject.ToString()));
sb.Append(" AND " + "it." + property.Name).Append(" <= ").Append(("@" + property.Name + "End" + CurrentObject.ToString()));
sb.Append((i != 1 ? ")" : ""));
i++;
}
else
{
sb.Append((i != 1 ? " AND " : ""));
sb.Append("it." + property.Name).Append(" = ").Append(("@" + property.Name + CurrentObject.ToString()));
i++;
}
}
}
}
}
if (sb.Length > 0)
{
sb.Insert(0, "(");
sb.Insert(sb.Length, ")");
}
if (sbResult.Length > 0 && sb.Length > 0)
{
sbResult.Append(" OR ");
}
sbResult.Append(sb);
sb.Clear();
}
if (sbResult.Length == 0)
{
sbResult.Append("1 = 1");
}
return(sbResult.ToString());
}
else
{
return("1 = 1");
}
}
