public bool EditById(uint id, string newValue, byte[] photo)
{
try
{
var root = XMLProvider.XmlConnect(path);
XmlNode xRoot = root.DocumentElement;
XmlNode node = xRoot.SelectSingleNode(string.Format("award[@id = '{0}']", id));
node.SelectSingleNode("name").InnerText = newValue;
if (!XMLProvider.XmlSave(root, path))
{
return(false);
}
_edited = true;
return(true);
}
catch
{
return(false);
}
}
public bool DeleteById(uint id)
{
try
{
var root = XMLProvider.XmlConnect(path);
XmlNode xRoot = root.DocumentElement;
XmlNode node = xRoot.SelectSingleNode(string.Format("user[@id = '{0}']", id));
XmlNode outer = node.ParentNode;
outer.RemoveChild(node);
if (!XMLProvider.XmlSave(root, path))
{
return(false);
}
_edited = true;
return(true);
}
catch
{
return(false);
}
}
public bool Add(User user)
{
if (_edited)
{
GetAll();
}
try
{
var lastId = _users.Keys.Count > 0
? _users.Keys.Max()
: 0;
user.Id = lastId + 1;
_users.Add(user.Id, user);
var root = XMLProvider.XmlConnect(path);
XmlNode xRoot = root.DocumentElement;
XmlNode newRecord = root.CreateElement("user");
XmlAttribute recordAttribute = root.CreateAttribute("id");
XmlNode recordName = root.CreateElement("name");
XmlNode recordBirthday = root.CreateElement("birthday");
XmlText newName = root.CreateTextNode(user.Name);
XmlText newBirthday = root.CreateTextNode(user.DateOfBirth.ToShortDateString());
XmlText newId = root.CreateTextNode(user.Id.ToString());
recordName.AppendChild(newName);
recordAttribute.AppendChild(newId);
recordBirthday.AppendChild(newBirthday);
newRecord.AppendChild(recordName);
newRecord.AppendChild(recordBirthday);
newRecord.Attributes.Append(recordAttribute);
xRoot.AppendChild(newRecord);
XMLProvider.XmlSave(root, path);
_edited = false;
return(true);
}
catch
{
return(false);
}
}
public bool GrantUserAwards(uint idUser, uint idAward)
{
try
{
var root = XMLProvider.XmlConnect(path);
XmlNode xRoot = root.DocumentElement;
XmlNode node = xRoot.SelectSingleNode(string.Format("user[@id = '{0}']", idUser));
XmlNode outer = node.ParentNode;
XmlNode recordAward = root.CreateElement("award");
XmlText newAward = root.CreateTextNode(idAward.ToString());
recordAward.AppendChild(newAward);
node.AppendChild(recordAward);
if (!XMLProvider.XmlSave(root, path))
{
return(false);
}
_edited = true;
return(true);
}
catch
{
return(false);
}
}