internal static IEnumerable <CommandBase> ComputeDelta(
EntityName tableName,
IEnumerable <MappingModel> currentMappings,
IEnumerable <MappingModel> targetMappings)
{
var createdModels = DeltaHelper.GetCreated(
currentMappings,
targetMappings,
m => (m.MappingName, m.MappingKind));
var updatedModels = DeltaHelper.GetUpdated(
currentMappings,
targetMappings,
m => (m.MappingName, m.MappingKind));
var droppedModels = DeltaHelper.GetDropped(
currentMappings,
targetMappings,
m => (m.MappingName, m.MappingKind));
var createCommands = createdModels
.Concat(updatedModels.Select(p => p.after))
.Select(m => m.ToCreateMappingCommand(tableName));
var dropCommands = droppedModels
.Select(m => m.ToDropMappingCommand(tableName));
return(dropCommands
.Cast <CommandBase>()
.Concat(createCommands));
}
internal static IEnumerable <CommandBase> ComputeDelta(
IImmutableList <CreateFunctionCommand> currentFunctionCommands,
IImmutableList <CreateFunctionCommand> targetFunctionCommands)
{
var createdFunctions = DeltaHelper.GetCreated(
currentFunctionCommands,
targetFunctionCommands,
c => c.FunctionName);
var updatedFunctions = DeltaHelper.GetUpdated(
currentFunctionCommands,
targetFunctionCommands,
c => c.FunctionName);
var droppedFunctions = DeltaHelper.GetDropped(
currentFunctionCommands,
targetFunctionCommands,
c => c.FunctionName);
var createCommands = createdFunctions
.Concat(updatedFunctions.Select(p => p.after));
var dropCommands = droppedFunctions
.Select(c => new DropFunctionCommand(c.FunctionName));
return(createCommands
.Cast <CommandBase>()
.Concat(dropCommands));
}