public bool DeleteAward(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;
XmlNodeList recordAward = node.SelectNodes("award");
foreach (XmlElement item in recordAward)
{
int.TryParse(item.InnerText, out int res);
if (res == idAward)
{
node.RemoveChild(item);
}
}
if (!XMLProvider.XmlSave(root, path))
{
return(false);
}
_edited = true;
return(true);
}
catch
{
return(false);
}
}
public bool EditUser(uint idUser, string newValue, DateTime newBirthday, List <uint> newAwards)
{
try
{
var root = XMLProvider.XmlConnect(path);
XmlNode xRoot = root.DocumentElement;
XmlNode node = xRoot.SelectSingleNode(string.Format("user[@id = '{0}']", idUser));
node.SelectSingleNode("name").InnerText = newValue;
node.SelectSingleNode("birthday").InnerText = newBirthday.ToShortDateString();
XmlNodeList listNode = node.SelectNodes("award");
foreach (XmlNode item in listNode)
{
node.RemoveChild(item);
}
if (!XMLProvider.XmlSave(root, path))
{
return(false);
}
foreach (uint item in newAwards)
{
GrantUserAwards(idUser, item);
}
_edited = true;
return(true);
}
catch
{
return(false);
}
}
public IEnumerable <Award> GetAll()
{
_awards.Clear();
var root = XMLProvider.XmlConnect(path);
XmlNode xRoot = root.DocumentElement;
foreach (XmlElement xnode in xRoot)
{
Award award = new Award();
XmlNode attr = xnode.Attributes.GetNamedItem("id");
if (attr != null)
{
uint.TryParse(attr.Value, out uint id);
award.Id = id;
}
foreach (XmlNode childnode in xnode.ChildNodes)
{
if (childnode.Name == "name")
{
award.Name = childnode.InnerText;
}
}
_awards.Add(award.Id, award);
}
_edited = false;
return(_awards.Values);
}
public bool Add(Award award)
{
if (_edited)
{
GetAll();
}
try
{
var lastId = _awards.Keys.Count > 0
? _awards.Keys.Max()
: 0;
award.Id = lastId + 1;
_awards.Add(award.Id, award);
var root = XMLProvider.XmlConnect(path);
XmlNode xRoot = root.DocumentElement;
XmlNode newRecord = root.CreateElement("award");
XmlAttribute recordAttribute = root.CreateAttribute("id");
XmlNode recordName = root.CreateElement("name");
XmlText newName = root.CreateTextNode(award.Name);
XmlText newId = root.CreateTextNode(award.Id.ToString());
recordName.AppendChild(newName);
recordAttribute.AppendChild(newId);
newRecord.AppendChild(recordName);
newRecord.Attributes.Append(recordAttribute);
xRoot.AppendChild(newRecord);
XMLProvider.XmlSave(root, path);
_edited = false;
return(true);
}
catch
{
return(false);
}
}
public IEnumerable <User> GetAll()
{
_users.Clear();
var root = XMLProvider.XmlConnect(path);
XmlNode xRoot = root.DocumentElement;
foreach (XmlElement xnode in xRoot)
{
User user = new User();
XmlNode attr = xnode.Attributes.GetNamedItem("id");
if (attr != null)
{
uint.TryParse(attr.Value, out uint id);
user.Id = id;
}
foreach (XmlNode childnode in xnode.ChildNodes)
{
if (childnode.Name == "name")
{
user.Name = childnode.InnerText;
}
if (childnode.Name == "birthday")
{
DateTime.TryParse(childnode.InnerText, out DateTime birthday);
user.DateOfBirth = birthday;
}
if (childnode.Name == "award")
{
foreach (XmlNode item in childnode.ChildNodes)
{
if (uint.TryParse(item.InnerText, out uint awardId))
{
user.Awards.Add(awardId);
}
}
}
}
_users.Add(user.Id, user);
}
_edited = false;
return(_users.Values);
}
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);
}
}
