private static string AliasAttribute(EntityMetadata entityMetadata, string alias, EntityAttribute attribute, string context)
{
var contextToUse = context ?? entityMetadata.Name;
var query = attribute.GetQueryReplacingMarkers(contextToUse);
query = BaseQueryUtil.EvaluateServiceQuery(query);
return(string.Format("{0} as {1}", query, alias));
}
public static string Build(EntityMetadata entityMetadata, EntityAssociation association)
{
var sb = new StringBuilder();
sb.AppendFormat("left join {0} on (", BaseQueryUtil.AliasEntity(association.To, association.Qualifier));
var attributes = association.Attributes as IList <EntityAssociationAttribute>
?? association.Attributes.ToList();
for (var i = 0; i < attributes.Count; i++)
{
var suffix = (i < attributes.Count - 1) ? " and " : ")";
var attribute = attributes[i];
if (null != attribute.Query)
{
var query = attribute.GetQueryReplacingMarkers(association.Qualifier);
query = BaseQueryUtil.EvaluateServiceQuery(query);
sb.Append(query + suffix);
}
else if (null != attribute.From)
{
var entityNameToUse = association.EntityName ?? entityMetadata.Name;
var from = Parse(entityNameToUse, attribute.From);
var to = attribute.To != null?Parse(association.Qualifier, attribute.To) : ParseLiteral(attribute);
sb.AppendFormat("{0} = {1}" + suffix, from, to);
}
else
{
var value = ParseLiteral(attribute);
sb.AppendFormat("{0}.{1} = {2}" + suffix, association.Qualifier, attribute.To, value);
}
}
return(sb.ToString());
}
