/// <summary>
/// Check if the menu is valid to insert.
/// </summary>
/// <returns><c>true</c>, if new menu was validated, <c>false</c> otherwise.</returns>
/// <param name="menu">Lunch Menu data to validate.</param>
public bool validateNewMenu(LunchMenu menu)
{
lock (locker) {
SQLiteCommand cmd = dbConn.CreateCommand(CHECK_NEW_FORMAT, menu.name);
int count = Convert.ToInt32(cmd.ExecuteScalar <Int32> ());
return(validateMenu(menu) && count == 0);
}
}
public LunchMenuListItem(LunchMenu menu, int count, Drawable image)
{
this.id = menu.id;
this.name = menu.name;
this.calory = menu.calory;
this.cost = menu.cost;
this.selectedCount = count;
this.image = image;
}
/// <summary>
/// Check if the menu is valid to update.
/// </summary>
/// <returns><c>true</c>, if update menu was validated, <c>false</c> otherwise.</returns>
/// <param name="menu">Lunch Menu data to validate.</param>
public bool validateUpdateMenu(LunchMenu menu)
{
lock (locker) {
SQLiteCommand cmd = dbConn.CreateCommand(CHECK_EXIST_FORMAT, menu.id);
int existCount = Convert.ToInt32(cmd.ExecuteScalar <Int32> ());
cmd = dbConn.CreateCommand(CHECK_DUPLICATE_FORMAT, menu.id, menu.name);
int dupliateCount = Convert.ToInt32(cmd.ExecuteScalar <Int32> ());
return(validateMenu(menu) && existCount == 1 && dupliateCount == 0);
}
}
/// <summary>
/// Insert new menu.
/// </summary>
/// <returns><c>true</c>, if menu format is correct, <c>false</c> otherwise.</returns>
/// <param name="menu">Lunch Menu data to insert.</param>
public bool insertMenu(LunchMenu menu)
{
if (validateNewMenu(menu))
{
lock (locker) {
dbConn.Insert(menu);
return(true);
}
}
else
{
return(false);
}
}
/// <summary>
/// Update lunch menu database element.
/// </summary>
/// <returns><c>true</c>, if menu format is correct. <c>false</c> otherwise.</returns>
/// <param name="menu">Lunch menu data to update</param>
public bool updateMenu(LunchMenu menu)
{
if (validateUpdateMenu(menu))
{
lock (locker) {
dbConn.Update(menu);
return(true);
}
}
else
{
return(false);
}
}
/**
* Add new lunch menu.
*/
private void addLunchMenu(String name, float calory, float cost)
{
var newMenu = new LunchMenu(name, calory, cost);
// Dismiss dialog on succeeding insert.
if (LunchMenuDao.getInstance().insertMenu(newMenu))
{
Dismiss();
string successText = String.Format(Resources.GetString(Resource.String.success_add_menu), name);
Toast.MakeText(Activity, successText, ToastLength.Short).Show();
}
else
{
// TODO
// Show failure Toast and Highlight invalid field.
string successText = String.Format(Resources.GetString(Resource.String.fail_add_menu), name);
Toast.MakeText(Activity, successText, ToastLength.Short).Show();
}
}
/// <summary>
/// Check if the content of the menu is valid.
/// </summary>
/// <returns><c>true</c>, if menu was validated, <c>false</c> otherwise.</returns>
/// <param name="menu">Lunch menu data to validate.</param>
public bool validateMenu(LunchMenu menu)
{
return(menu.calory >= 0 && menu.cost >= 0 && !menu.deleted);
}
public LunchMenuPickerItem(LunchMenu menu, int count, Drawable image)
: base(menu, count, image)
{
}
