/// <summary>
/// When a nav is updated / deleted, menus may need to remove the <see cref="Nav"/>.
/// </summary>
/// <param name="navId"></param>
/// <param name="navType"></param>
private async Task HandleMenusAsync(int navId, ENavType navType)
{
var menuMetas = await metaRepository.GetListAsync(EMetaType.Menu);
foreach (var meta in menuMetas) // List<Meta>
{
var navList = JsonConvert.DeserializeObject <IList <Nav> >(meta.Value);
foreach (var nav in navList)
{
// if the menu contains the deleted nav, remove it
if (nav.Id == navId && nav.Type == navType)
{
navList.Remove(nav);
// if menu got nav removed, update it
meta.Value = JsonConvert.SerializeObject(navList);
await metaRepository.UpdateAsync(meta);
// invalidate the menu cache
await InvalidateMenuCacheAsync(meta.Key);
// once removed break out
break;
}
}
}
}
/// <summary>
/// Updates a widget instance.
/// </summary>
/// <param name="id"></param>
/// <param name="widget"></param>
/// <returns></returns>
public async Task UpdateWidgetAsync(int id, Widget widget)
{
var meta = await metaRepository.GetAsync(id);
meta.Value = JsonConvert.SerializeObject(widget);
await metaRepository.UpdateAsync(meta);
await InvalidAreaCacheAsync();
}
/// <summary>
/// Creates or updates a Settings, if a particular setting exists then updates it, else inserts it.
/// Invalidates cache for the Settings when done.
/// </summary>
/// <typeparam name="T"></typeparam>
/// <param name="settings"></param>
/// <returns></returns>
public async Task <T> UpsertSettingsAsync <T>(T settings) where T : class, ISettings, new()
{
var settingsCreate = new List <Meta>();
var settingsUpdate = new List <Meta>();
var allSettings = await GetAllSettingsAsync();
foreach (var property in typeof(T).GetProperties())
{
if (!property.CanRead || !property.CanWrite)
{
continue;
}
var value = property.GetValue(settings);
var valueStr = TypeDescriptor.GetConverter(property.PropertyType).CanConvertFrom(typeof(string)) ?
TypeDescriptor.GetConverter(typeof(object)).ConvertToInvariantString(value) :
JsonConvert.SerializeObject(value);
var key = (typeof(T).Name + "." + property.Name).ToLowerInvariant();
if (allSettings == null || !allSettings.Any(s => s.Key == key))
{
settingsCreate.Add(new Meta
{
Key = key,
Value = valueStr
});
}
else
{
var setting = await _repo.GetAsync(key);
if (setting != null && setting.Value != valueStr)
{
setting.Value = valueStr;
settingsUpdate.Add(setting);
}
}
}
if (settingsCreate.Count > 0)
{
await _repo.CreateRangeAsync(settingsCreate);
}
if (settingsUpdate.Count > 0)
{
await _repo.UpdateAsync(settingsUpdate);
}
string cacheKey = typeof(T).Name;
await _cache.RemoveAsync(cacheKey);
await _cache.RemoveAsync(CACHE_KEY_ALL_SETTINGS);
return(settings);
}
