/// <summary>
/// Gets the stringified query expression format of the current instance. A formatted string for field-operation-parameter will be
/// conjuncted by the value of the <see cref="Conjunction"/> property.
/// </summary>
/// <returns>A stringified formatted-text of the current instance.</returns>
public string GetString()
{
var groupList = new List <string>();
var conjunction = GetConjunctionText();
if (QueryFields != null && QueryFields.Any())
{
var fieldList = new List <string>();
QueryFields.ToList().ForEach(queryField =>
{
fieldList.Add(queryField.AsFieldAndParameter());
});
groupList.Add(fieldList.Join($" {conjunction} "));
}
if (QueryGroups != null && QueryGroups.Any())
{
var fieldList = new List <string>();
QueryGroups.ToList().ForEach(queryGroup =>
{
fieldList.Add(queryGroup.GetString());
});
groupList.Add(fieldList.Join($" {conjunction} "));
}
return($"({groupList.Join($" {conjunction} ")})");
}
/// <summary>
/// Gets the stringified query expression format of the current instance. A formatted string for field-operation-parameter will be
/// conjuncted by the value of the <see cref="Conjunction"/> property.
/// </summary>
/// <returns>A stringified formatted-text of the current instance.</returns>
public string GetString()
{
var groupList = new List <string>();
var conjunction = GetConjunctionText();
var separator = string.Concat(" ", conjunction, " ");
if (QueryFields != null && QueryFields.Any())
{
var fieldList = new List <string>();
QueryFields.ToList().ForEach(queryField =>
{
fieldList.Add(queryField.AsFieldAndParameter());
});
groupList.Add(fieldList.Join(separator));
}
if (QueryGroups != null && QueryGroups.Any())
{
var fieldList = new List <string>();
QueryGroups.ToList().ForEach(queryGroup =>
{
fieldList.Add(queryGroup.GetString());
});
groupList.Add(fieldList.Join(separator));
}
return(IsNot ? string.Concat("NOT (", groupList.Join(conjunction), ")") : string.Concat("(", groupList.Join(separator), ")"));
}
// Equality and comparers
/// <summary>
/// Returns the hashcode for this <see cref="QueryGroup"/>.
/// </summary>
/// <returns>The hashcode value.</returns>
public override int GetHashCode()
{
// Make sure to check if this is already taken
if (!ReferenceEquals(null, m_hashCode))
{
return(m_hashCode.Value);
}
// Set the default value (should not be nullable for better performance)
var hashCode = 0;
// Iterates the child query field
if (!ReferenceEquals(null, QueryFields))
{
QueryFields.ToList().ForEach(queryField =>
{
hashCode += queryField.GetHashCode();
});
}
// Iterates the child query groups
if (!ReferenceEquals(null, QueryGroups))
{
QueryGroups.ToList().ForEach(queryGroup =>
{
hashCode += queryGroup.GetHashCode();
});
}
// Set with conjunction
hashCode += Conjunction.GetHashCode();
// Set back the hashcode value
m_hashCode = hashCode;
// Return the actual hash code
return(hashCode);
}
/// <summary>
/// Force to append prefixes on the bound parameter objects.
/// </summary>
internal void AppendParametersPrefix()
{
QueryFields?
.ToList()
.ForEach(queryField => queryField.AppendParameterPrefix());
}
