/// <summary>
/// Reads a gadget instance setting from the database
/// </summary>
/// <param name="key">The key of the (key,value) pair that should be read. if this key doesn't exist
/// in the gadget instance settings, operation will fail.</param>
/// <param name="publicSetting">Set this parameter to True if the (key,value) pair is a public setting,
/// otherwise set it to False</param>
/// <param name="settingValue">The value of the (key,value) pair that is read from gadget instance settings</param>
/// <returns>On success returns True, otherwise returns False</returns>
public string GetSetting(string key, bool publicSetting)
{
GadgetInstanceSetting setting = _context.GadgetInstanceSettings.Where(r => r.Key == key && r.Public == publicSetting).SingleOrDefault();
if (setting == null)
{
throw new InvalidKeyException(key);
}
return(setting.Value);
}
/// <summary>
/// Sets a (key,value) pair in the gadget instance settings.
/// </summary>
/// <param name="key">The key of the key-value pair. if this key exists in the gadget instanse settings,
/// its value will updated, otherwise a new (key,value) pair will be inserted in the gadget instance settings.</param>
/// <param name="value">new value of the (key,value) pair</param>
/// <param name="publicSetting">Set this parameter to True if the (key,value) pair is a public setting,
/// otherwise set it to False</param>
/// <returns>On success returns True, otherwise returns False</returns>
public void SetSetting(KeyValuePair <string, string>[] keyValuePairs, bool publicSetting)
{
GadgetInstanceSetting gis;
for (int i = 0; i < keyValuePairs.Length; i++)
{
gis = new GadgetInstanceSetting(keyValuePairs[i].Key, keyValuePairs[i].Value);
_context.GadgetInstanceSettings.Attach(gis);
}
_context.SaveChanges();
}
/// <summary>
/// Updates a (key,value) pair in the gadget instance settings
/// </summary>
/// <param name="key">The key of the key-value pair. this key should exist in the gadget instance settings,
/// otherwise update operation will fail</param>
/// <param name="newValue">new value for the (key,value) pair</param>
/// <param name="publicSetting">Set this parameter to True if the (key,value) pair is a public setting,
/// otherwise set it to False</param>
/// <returns>On success returns True, otherwise returns False</returns>
public void UpdateSetting(string key, string newValue, bool publicSetting)
{
GadgetInstanceSetting setting = _context.GadgetInstanceSettings.Where(r => r.Key == key && r.Public == publicSetting).SingleOrDefault();
if (setting == null)
{
throw new InvalidKeyException(key);
}
// set values
setting.Value = newValue;
// update changes
_context.SaveChanges();
}
/// <summary>
/// Sets a (key,value) pair in the gadget instance settings.
/// </summary>
/// <param name="key">The key of the key-value pair. if this key exists in the gadget instanse settings,
/// its value will updated, otherwise a new (key,value) pair will be inserted in the gadget instance settings.</param>
/// <param name="value">new value of the (key,value) pair</param>
/// <param name="publicSetting">Set this parameter to True if the (key,value) pair is a public setting,
/// otherwise set it to False</param>
/// <returns>On success returns True, otherwise returns False</returns>
public void SetSetting(string key, string value, bool publicSetting)
{
GadgetInstanceSetting setting = _context.GadgetInstanceSettings.FirstOrDefault(
gis => (gis.GadgetInstance.Id == _giid && gis.Key == key && gis.Public == publicSetting));
if (setting != null)
{
setting.Value = value;
}
else
{
_context.GadgetInstances.Single(gi => gi.Id == _giid).Settings.Add(new GadgetInstanceSetting(key, value));
}
_context.SaveChanges();
}
