tomasz.sowa/morm
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added support in Model for removing the whole tree

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(without lists/vectors at the moment yet)




git-svn-id: svn://ttmath.org/publicrep/morm/trunk@1206 e52654a7-88a9-db11-a3e9-0013d4bc506e
This commit is contained in:
Tomasz Sowa
2019-09-05 16:32:35 +00:00
parent d2f851faf9
commit 0be9feda44
8 changed files with 118 additions and 67 deletions
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67
src/model.cpp
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@@ -411,16 +411,41 @@ void Model::generate_remove_query(PT::TextStream & stream, ModelData * model_dat
}
bool Model::remove(ModelData * model_data)
bool Model::remove(ModelData & model_data, bool remove_whole_tree)
{
return remove(&model_data);
}
bool Model::remove(ModelData * model_data, bool remove_whole_tree)
{
ModelEnv model_env_local;
model_env = &model_env_local;
model_env->model_data = model_data;
bool status = remove_tree(remove_whole_tree);
// what about if an exception was thrown? this pointer will not be null
model_env = nullptr;
return status;
}
// FIX ME we need to propagage the status from the whole tree, if there is an error somewhere then we should return error from the parent
bool Model::remove_tree(bool remove_whole_tree)
{
bool result = false;
if( remove_whole_tree )
{
model_env->model_connector_mode = MORM_MODEL_CONNECTOR_MODE_ITERATE_THROUGH_CHILDS_WITHOUT_FOREIGN_KEY_AND_REMOVE;
map_fields();
}
if( model_connector )
{
ModelEnv model_env_local;
model_env = &model_env_local;
model_env->model_data = model_data;
model_env->model_connector_mode = MORM_MODEL_CONNECTOR_MODE_GENERATING_DB_SQL;
DbConnector * db_connector = model_connector->get_db_connector();
@@ -435,7 +460,7 @@ bool Model::remove(ModelData * model_data)
if( result )
{
save_mode = DO_INSERT_ON_SAVE;
save_mode = DO_INSERT_ON_SAVE; // CHECKME may it would be better to set DO_NOTHING_ON_SAVE?
after_remove();
}
else
@@ -443,20 +468,18 @@ bool Model::remove(ModelData * model_data)
after_remove_failure();
}
}
}
// what about if an exception was thrown? this pointer will not be null
model_env = nullptr;
if( remove_whole_tree )
{
model_env->model_connector_mode = MORM_MODEL_CONNECTOR_MODE_ITERATE_THROUGH_CHILDS_WITH_FOREIGN_KEY_AND_REMOVE;
map_fields();
}
return result;
}
bool Model::remove(ModelData & model_data)
{
return remove(&model_data);
}
bool Model::save(ModelData & model_data, bool save_whole_tree)
@@ -486,7 +509,11 @@ bool Model::save_tree(bool save_whole_tree)
if( save_whole_tree )
{
model_env->model_connector_mode = MORM_MODEL_CONNECTOR_MODE_ITERATE_THROUGH_CHILDS_WITH_FOREIGN_KEY_AND_SAVE;
if( save_mode == DO_DELETE_ON_SAVE )
model_env->model_connector_mode = MORM_MODEL_CONNECTOR_MODE_ITERATE_THROUGH_CHILDS_WITHOUT_FOREIGN_KEY_AND_SAVE;
else
model_env->model_connector_mode = MORM_MODEL_CONNECTOR_MODE_ITERATE_THROUGH_CHILDS_WITH_FOREIGN_KEY_AND_SAVE;
map_fields();
}
@@ -495,15 +522,15 @@ bool Model::save_tree(bool save_whole_tree)
switch( save_mode )
{
case DO_DELETE_ON_SAVE:
result = remove(model_env->model_data);// without the whole tree
result = remove_tree(false);
break;
case DO_INSERT_ON_SAVE:
result = insert(model_env->model_data, false);
result = insert_tree(false);
break;
case DO_UPDATE_ON_SAVE:
result = update(model_env->model_data, false);
result = update_tree(false);
break;
case DO_NOTHING_ON_SAVE:
@@ -515,7 +542,11 @@ bool Model::save_tree(bool save_whole_tree)
if( save_whole_tree )
{
model_env->model_connector_mode = MORM_MODEL_CONNECTOR_MODE_ITERATE_THROUGH_CHILDS_WITHOUT_FOREIGN_KEY_AND_SAVE;
if( save_mode == DO_DELETE_ON_SAVE )
model_env->model_connector_mode = MORM_MODEL_CONNECTOR_MODE_ITERATE_THROUGH_CHILDS_WITH_FOREIGN_KEY_AND_SAVE;
else
model_env->model_connector_mode = MORM_MODEL_CONNECTOR_MODE_ITERATE_THROUGH_CHILDS_WITHOUT_FOREIGN_KEY_AND_SAVE;
map_fields();
}