/// <summary>
///
/// </summary>
/// <param name="contextInfo"></param>
/// <returns></returns>
private List <EFTableInfo> GetTable(TableContextInfo contextInfo)
{
if (!(Activator.CreateInstance(contextInfo.ContextType) is DbContext context))
{
return(new List <EFTableInfo>());
}
var entityTypes = contextInfo.TableTypes.Select(context.Model.FindEntityType);
return(entityTypes.Select(s => ConvertToTableInfo(context, s)).ToList());
}
/// <summary>
///
/// </summary>
/// <param name="contextInfo"></param>
/// <param name="histories"></param>
/// <returns></returns>
private bool IsCanMigrate(TableContextInfo contextInfo, List <MigrationHistory> histories)
{
var history = histories.FirstOrDefault(f => f.Name == contextInfo.ContextType.Name);
if (history == null)
{
return(true);
}
var historyVersion = new Version(history.Version);
return(historyVersion < contextInfo.MigrateVersion);
}
/// <summary>
///
/// </summary>
/// <param name="contextType"></param>
/// <returns></returns>
private static TableContextInfo GetMigrateContextType(Type contextType)
{
var attr = contextType?.GetCustomAttribute <SbMigrationAttribute>();
if (attr == null || contextType.IsAbstract)
{
return(null);
}
var tableTypes = GetContextTables(contextType);
if (tableTypes.IsNullOrEmpty())
{
return(null);
}
var info = new TableContextInfo(contextType, attr.Version);
info.TableTypes = tableTypes;
return(info);
}