public XmlService(string name, IEnumerable <KeyValuePair <string, string> > keyValues)
: base(name, keyValues)
{
Modifier = XmlModifierFactory.Create(name);
Database = Modifier.Database;
ODataQuerier = ODataQuerier <XElement> .Create(Name, Schema);
}
public UsersService(string name)
{
Name = name;
Schema = new SchemaProvider(name).GetSchema();
ODataQuerier = ODataQuerier <XElement> .Create(Name, Schema);
Modifier = XmlModifierFactory.Create(name, Schema);
}
public bool Exists(string entity, IEnumerable <KeyValuePair <string, object> > propertyValues)
{
string filter = GenerateFilter(propertyValues, out IReadOnlyDictionary <string, object> parameters);
string select = propertyValues.First().Key;
ODataQuerier <XElement> oDataQuerier = ODataQuerier <XElement> .Create(Name, Schema);
IEnumerable <XElement> result = oDataQuerier.GetCollection(entity, select, filter, null, parameters);
return(result.Count() > 0);
}
public bool IsUnique(string entity, IEnumerable <KeyValuePair <string, object> > propertyValues, IEnumerable <KeyValuePair <string, object> > excludedKey)
{
string filter = GenerateFilter(propertyValues, out IReadOnlyDictionary <string, object> parameters);
string select = string.Join(",", excludedKey.Select(p => p.Key));
ODataQuerier <XElement> oDataQuerier = ODataQuerier <XElement> .Create(Name, Schema);
IEnumerable <XElement> result = oDataQuerier.GetCollection(entity, select, filter, null, parameters);
int count = result.Count();
if (count == 0)
{
return(true);
}
if (count > 1)
{
return(false);
}
XElement element = result.First();
foreach (KeyValuePair <string, object> pair in excludedKey)
{
object obj = pair.Value;
string value;
if (obj.GetType() == typeof(bool))
{
value = ((bool)obj) ? "true" : "false";
}
else if (obj.GetType() == typeof(DateTime))
{
value = new DotNETDateFormatter().Format((DateTime)obj);
}
else
{
value = obj.ToString();
}
if (element.Element(pair.Key).Value == value)
{
continue;
}
return(false);
}
return(true);
}