public static bool Populate <T>(this IDbRecord record, ref T entityToPopulate) where T : IDbEntity
{
var map = DbMapping.Get(typeof(T));
if (map?.PropertiesInfos == null || map.PropertiesInfos.Count == 0)
{
return(false);
}
var result = false;
//Property Key
var keyValue = map.PropertyInfoKey.GetValue(entityToPopulate) as string;
if (keyValue != record.Id)
{
map.PropertyInfoKey.SetValue(entityToPopulate, record.Id);
result = true;
}
//Others
foreach (var fieldName in record.FieldNames)
{
var property = map.PropertiesInfos.FirstOrDefault(p => p.Name == fieldName);
if (property != null)
{
var oldValue = property.GetValue(entityToPopulate);
var value = record[fieldName];
if (oldValue != value)
{
property.SetValue(entityToPopulate, value.ConvertValue(property.PropertyType));
result = true;
}
}
}
return(result);
}
public static void UpdateFrom <T>(this IDbRecord record, T sourceEntity) where T : IDbEntity
{
if (sourceEntity == null)
{
return;
}
var map = DbMapping.Get(sourceEntity.GetType());
if (map == null || map.PropertiesInfos == null || map.PropertiesInfos.Count == 0)
{
return;
}
foreach (var property in map.PropertiesInfos)
{
var value = property.GetValue(sourceEntity);
if (value == null)
{
continue;
}
if (record[property.Name] != value)
{
record[property.Name] = value;
}
}
}
public void InitMapping(params Assembly[] assemblies)
{
DbMapping.Clear();
foreach (var assembly in assemblies)
{
var query = assembly.DefinedTypes.Where(t => typeof(IDbEntity).GetTypeInfo().IsAssignableFrom(t));
foreach (var type in query)
{
DbMapping.Add(type.AsType());
}
}
}
public void Delete(T entity, bool autoSync = true)
{
var map = DbMapping.Get(typeof(T));
if (map.PropertyInfoKey == null)
{
new KeyNotFoundException(string.Format("Type: {0} does not have MvxDBKey attribute", typeof(T).Name));
}
var value = map.PropertyInfoKey.GetValue(entity);
if (value == null)
{
new NullReferenceException(string.Format("Type:{0}: Property key {1} is null", typeof(T).Name, map.PropertyInfoKey.Name));
}
Delete(entity, value.ToString(), autoSync);
}