tomasz.sowa
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morm
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added support for UPDATE, INSERT and REMOVE for lists childs 

(need some testing)




git-svn-id: svn://ttmath.org/publicrep/morm/trunk@1214 e52654a7-88a9-db11-a3e9-0013d4bc506e
This commit is contained in:
Tomasz Sowa 2019-09-24 11:09:11 +00:00
parent a5d5a81a57
commit cff4c1518e
3 changed files with 108 additions and 45 deletions
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12
samples/person.h
View File

@ -69,8 +69,10 @@ public:
std::wstring email;
Language language;
std::list<Attachment> attachments;
Attachment attachment;
void map_fields()
{
field(L"id", id, false, false, true);
@ -81,7 +83,9 @@ public:
field(L"email", email);
field(L"language_id", L"language", language);
field(L"person_id", L"attachment", attachment, true, true, false);
field(L"person_id", L"attachments", attachments);
//field(L"person_id", L"attachment", attachment, true, true, false);
//field(L"person_id", attachment, f::insertable | f::updatable | f::foreign_key);
//field(L"person_id", attachment, f::insertable, f::updatable, f::foreign_key);
}
@ -92,6 +96,12 @@ public:
stream << "public.person";
}
void after_select()
{
morm::Finder<Attachment> finder(model_connector);
attachments = finder.select().where().eq(L"person_id", id).get_list();
}
void after_insert()
{
get_last_sequence(L"public.person_id_seq", id);

15
samples/sample01.h
View File

@ -65,6 +65,8 @@ void make()
morm::Finder<Person> finder(model_connector);
//std::list<Person> plist = finder.use_table_prefix(false).select().where().eq(L"id", 120).get_list();
Person p = finder.use_table_prefix(false).select().where().eq(L"id", 120).get();
// Person p = finder.prepare_to_select().use_table_prefix(true).raw("select person.id as \"person.id\", person.first_name as \"person.first_name\", person.last_name as \"person.last_name\", person.email as \"person.email\", "
@ -77,8 +79,21 @@ void make()
// "LEFT JOIN public.language AS language2 ON attachment.language_id = language2.id "
// "where person.id=120").get();
std::cout << "--------------------------------" << std::endl;
p.remove();
std::cout << "--------------------------------" << std::endl;
std::string str;
//str += "--------\n";
p.to_text(str, true, true);
// for(Person & person : plist)
// {
// person.to_text(str, false, true);
// str += "\n--------\n";
// }
std::cout << str << std::endl;
}

126
src/model.h
View File

@ -607,6 +607,11 @@ protected:
}
/*
* IMPROVE ME there can be more rows in the result set when there are more items on the left hand side of the join
* this is only in a case when has_foreign_key is false, may it can be ignored? we can use unique index in such a case
*
*/
void field_model_left_join(const wchar_t * db_field_name, const wchar_t * flat_field_name, Model & field_model, bool insertable, bool updatable, bool has_foreign_key, DbExpression * db_expression)
{
if( model_env && field_model.model_env && model_env->finder_helper )
@ -960,61 +965,94 @@ protected:
}
template<typename ModelContainer, typename ModelContainerType>
void field_list_iterate_through_childs(const wchar_t * db_field_name, ModelContainer & field_container, ModelContainerType * model_container_type)
{
if( !is_empty_field(db_field_name) )
{
for(ModelContainerType & child_model : field_container)
{
ModelEnv model_env_local;
model_env_local.copy_global_objects(*model_env);
child_model.model_env = &model_env_local;
child_model.set_connector(model_connector);
if( model_env->model_work_submode == MORM_MODEL_WORK_SUBMODE_INSERT )
{
child_model.insert_tree(true);
}
if( model_env->model_work_submode == MORM_MODEL_WORK_SUBMODE_UPDATE )
{
child_model.update_tree(true);
}
if( model_env->model_work_submode == MORM_MODEL_WORK_SUBMODE_REMOVE )
{
child_model.remove_tree(true);
}
if( model_env->model_work_submode == MORM_MODEL_WORK_SUBMODE_SAVE )
{
child_model.save_tree(true);
}
child_model.model_env = nullptr;
}
}
}
template<typename ModelContainer>
void field_list_generate_flat_string(const wchar_t * flat_field_name, ModelContainer & field_container, bool insertable, bool updatable)
{
FlatConnector * flat_connector = model_connector->get_flat_connector();
if( flat_connector )
{
FlatExpression * flat_expression = flat_connector->get_expression();
if( flat_expression && !is_empty_field(flat_field_name) )
{
// insertable and updatable will be ignored there
flat_expression->field_list(flat_field_name, field_container, insertable, updatable, false, model_connector, model_env);
}
}
}
template<typename ModelContainer>
void field_list_clearing_values(ModelContainer & field_container)
{
Clearer * clearer = model_connector->get_clearer();
if( clearer )
{
clearer->clear_container(field_container);
}
}
template<typename ModelContainer, typename ModelContainerType>
void field_list(const wchar_t * db_field_name, const wchar_t * flat_field_name, ModelContainer & field_container, ModelContainerType * model_container_type, bool insertable, bool updatable)
{
if( model_connector && model_env )
{
if( model_env->model_work_mode == MORM_MODEL_WORK_MODE_ITERATE_THROUGH_CHILDS_WITHOUT_FOREIGN_KEY )
{
field_list_iterate_through_childs(db_field_name, field_container, model_container_type);
}
if( model_env->model_work_mode == MORM_MODEL_WORK_MODE_GENERATING_FLAT_STRING )
{
FlatConnector * flat_connector = model_connector->get_flat_connector();
if( flat_connector )
{
FlatExpression * flat_expression = flat_connector->get_expression();
if( flat_expression && !is_empty_field(flat_field_name) )
{
// IMPROVE ME
// what about model_data and save_mode?
// may it should be placed inside some structure?
flat_expression->field_list(flat_field_name, field_container, insertable, updatable, false, model_connector, model_env);
}
}
field_list_generate_flat_string(flat_field_name, field_container, insertable, updatable);
}
if( model_env->model_work_mode == MORM_MODEL_WORK_MODE_GENERATING_DB_SQL )
{
DbConnector * db_connector = model_connector->get_db_connector();
if( db_connector )
{
DbExpression * db_expression = db_connector->get_expression();
if( db_expression && !is_empty_field(db_field_name) &&
db_expression->get_output_type() != MORM_OUTPUT_TYPE_JOIN_TABLES &&
db_expression->get_output_type() != MORM_OUTPUT_TYPE_DB_INSERT &&
db_expression->get_output_type() != MORM_OUTPUT_TYPE_DB_UPDATE )
{
// another select will be used (from another Finder)
// we need only columns name
// but columns are defined in the other model
// FIX ME
// UPDATE, INSERT, REMOVE for lists
}
}
}
if( model_env->model_work_mode == MORM_MODEL_WORK_MODE_CLEARING_VALUE )
{
Clearer * clearer = model_connector->get_clearer();
if( clearer )
{
clearer->clear_container(field_container);
}
field_list_clearing_values(field_container);
}
}
}