add support for declared cursors
Declare a cursor with the Finder::declare_cursor() method and next get the cursor with get_cursor():
morm::Cursor<MyObject> cursor = finder.
declare_cursor("mycursorname").
select().
raw("ORDER BY column_name ASC").
get_cursor();
The cursor now can be used with fetch.*() methods and then get() or get_list():
MyObject myobject = cursor.fetch_next().get();
std::list<MyObject> myobjects = cursor.fetch_forward_count(10).get_list();
This commit is contained in:
parent
6619f3ecb5
commit
21f12a8a98
GPG Key ID:
662CC1438638588B
269
src/cursor.h
269
src/cursor.h
|
|
@ -63,9 +63,11 @@ public:
|
|||
has_autogenerated_select = c.has_autogenerated_select;
|
||||
use_table_prefix_for_fetching = c.use_table_prefix_for_fetching;
|
||||
query_result = c.query_result;
|
||||
select_status = c.select_status;
|
||||
last_query_status = c.last_query_status;
|
||||
select_flags = c.select_flags;
|
||||
rows_counter = c.rows_counter;
|
||||
cursor_name = c.cursor_name;
|
||||
scroll_cursor = c.scroll_cursor;
|
||||
|
||||
if( query_result )
|
||||
{
|
||||
|
|
@ -107,9 +109,11 @@ public:
|
|||
cursor_helper.clear();
|
||||
finder_helper.clear();
|
||||
query_result = nullptr;
|
||||
select_status = false;
|
||||
last_query_status = false;
|
||||
select_flags = Select::default_type;
|
||||
rows_counter = 0;
|
||||
cursor_name.clear();
|
||||
scroll_cursor = false;
|
||||
}
|
||||
|
||||
|
||||
|
|
@ -131,9 +135,9 @@ public:
|
|||
}
|
||||
|
||||
|
||||
virtual void set_select_status(bool select_status)
|
||||
virtual void set_last_query_status(bool status)
|
||||
{
|
||||
this->select_status = select_status;
|
||||
this->last_query_status = status;
|
||||
}
|
||||
|
||||
|
||||
|
|
@ -171,7 +175,7 @@ public:
|
|||
{
|
||||
bool has = false;
|
||||
|
||||
if( model_connector && query_result && query_result->has_db_result() && select_status )
|
||||
if( model_connector && query_result && query_result->has_db_result() && last_query_status )
|
||||
{
|
||||
has = query_result->cur_row < query_result->result_rows;
|
||||
}
|
||||
|
|
@ -234,7 +238,7 @@ public:
|
|||
}
|
||||
|
||||
result.before_select();
|
||||
res = select_status;
|
||||
res = last_query_status;
|
||||
|
||||
if( res )
|
||||
{
|
||||
|
|
@ -326,6 +330,136 @@ public:
|
|||
}
|
||||
|
||||
|
||||
virtual void set_cursor_name(pt::TextStream & cursor_name)
|
||||
{
|
||||
this->cursor_name = cursor_name;
|
||||
}
|
||||
|
||||
|
||||
virtual void set_scroll_cursor(bool scroll_cursor)
|
||||
{
|
||||
this->scroll_cursor = scroll_cursor;
|
||||
}
|
||||
|
||||
|
||||
virtual Cursor & fetch(const char * fetch_str)
|
||||
{
|
||||
last_query_status = false;
|
||||
rows_counter = 0;
|
||||
|
||||
if( query_result )
|
||||
{
|
||||
query_result->clear();
|
||||
|
||||
if( model_connector )
|
||||
{
|
||||
DbConnector * db_connector = model_connector->get_db_connector();
|
||||
|
||||
if( db_connector )
|
||||
{
|
||||
bool status = db_connector->query_select(fetch_str, *query_result);
|
||||
last_query_status = status;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
return *this;
|
||||
}
|
||||
|
||||
|
||||
virtual Cursor & fetch(pt::TextStream & str)
|
||||
{
|
||||
if( str.size() < 256 )
|
||||
{
|
||||
char str_buf[256];
|
||||
|
||||
if( str.to_str(str_buf, sizeof(str_buf) / sizeof(char)) )
|
||||
{
|
||||
fetch(str_buf);
|
||||
}
|
||||
}
|
||||
else
|
||||
{
|
||||
put_cursor_fetch_query_too_long();
|
||||
}
|
||||
|
||||
return *this;
|
||||
}
|
||||
|
||||
|
||||
virtual Cursor & fetch(pt::WTextStream & str)
|
||||
{
|
||||
if( str.size() < 256 )
|
||||
{
|
||||
char str_buf[256];
|
||||
|
||||
if( str.to_str(str_buf, sizeof(str_buf) / sizeof(char)) )
|
||||
{
|
||||
fetch(str_buf);
|
||||
}
|
||||
}
|
||||
else
|
||||
{
|
||||
put_cursor_fetch_query_too_long();
|
||||
}
|
||||
|
||||
return *this;
|
||||
}
|
||||
|
||||
|
||||
virtual Cursor & fetch_next()
|
||||
{
|
||||
return fetch(&DbExpression::prepare_fetch_next_query);
|
||||
}
|
||||
|
||||
|
||||
virtual Cursor & fetch_prior()
|
||||
{
|
||||
return fetch(&DbExpression::prepare_fetch_prior_query);
|
||||
}
|
||||
|
||||
|
||||
virtual Cursor & fetch_first()
|
||||
{
|
||||
return fetch(&DbExpression::prepare_fetch_first_query);
|
||||
}
|
||||
|
||||
|
||||
virtual Cursor & fetch_last()
|
||||
{
|
||||
return fetch(&DbExpression::prepare_fetch_last_query);
|
||||
}
|
||||
|
||||
|
||||
virtual Cursor & fetch_absolute(long position)
|
||||
{
|
||||
return fetch(&DbExpression::prepare_fetch_absotule_query, position);
|
||||
}
|
||||
|
||||
|
||||
virtual Cursor & fetch_relative(long position)
|
||||
{
|
||||
return fetch(&DbExpression::prepare_fetch_relative_query, position);
|
||||
}
|
||||
|
||||
|
||||
virtual Cursor & fetch_forward_count(size_t len)
|
||||
{
|
||||
return fetch(&DbExpression::prepare_fetch_forward_count_query, len);
|
||||
}
|
||||
|
||||
|
||||
virtual Cursor & fetch_backward_count(size_t len)
|
||||
{
|
||||
return fetch(&DbExpression::prepare_fetch_backward_count_query, len);
|
||||
}
|
||||
|
||||
|
||||
virtual Cursor & fetch_all()
|
||||
{
|
||||
return fetch(&DbExpression::prepare_fetch_all_query);
|
||||
}
|
||||
|
||||
|
||||
protected:
|
||||
|
||||
|
|
@ -336,11 +470,98 @@ protected:
|
|||
CursorHelper cursor_helper;
|
||||
FinderHelper finder_helper; // may CursorHelper and FinderHelper should be one class?
|
||||
QueryResult * query_result;
|
||||
bool select_status;
|
||||
bool last_query_status;
|
||||
Select select_flags;
|
||||
size_t rows_counter;
|
||||
std::wstring rows_counter_column_name;
|
||||
pt::TextStream cursor_name;
|
||||
bool scroll_cursor;
|
||||
|
||||
typedef void (DbExpression::*prepare_fetch_method_type)(const pt::TextStream & cursor_name, pt::TextStream & out_stream);
|
||||
typedef void (DbExpression::*prepare_fetch_long_count_method_type)(const pt::TextStream & cursor_name, long count, pt::TextStream & out_stream);
|
||||
typedef void (DbExpression::*prepare_fetch_size_count_method_type)(const pt::TextStream & cursor_name, size_t count, pt::TextStream & out_stream);
|
||||
|
||||
|
||||
DbExpression * get_db_expression()
|
||||
{
|
||||
if( model_connector )
|
||||
{
|
||||
DbConnector * db_connector = model_connector->get_db_connector();
|
||||
|
||||
if( db_connector )
|
||||
{
|
||||
return db_connector->get_expression();
|
||||
}
|
||||
}
|
||||
|
||||
return nullptr;
|
||||
}
|
||||
|
||||
|
||||
virtual Cursor & fetch(prepare_fetch_method_type prepare_fetch_method)
|
||||
{
|
||||
if( !cursor_name.empty() )
|
||||
{
|
||||
DbExpression * db_expression = get_db_expression();
|
||||
|
||||
if( db_expression )
|
||||
{
|
||||
pt::TextStream str;
|
||||
(db_expression->*prepare_fetch_method)(cursor_name, str);
|
||||
fetch(str);
|
||||
}
|
||||
}
|
||||
else
|
||||
{
|
||||
put_cursor_not_declared_log();
|
||||
}
|
||||
|
||||
return *this;
|
||||
}
|
||||
|
||||
|
||||
virtual Cursor & fetch(prepare_fetch_long_count_method_type prepare_fetch_method, long count)
|
||||
{
|
||||
if( !cursor_name.empty() )
|
||||
{
|
||||
DbExpression * db_expression = get_db_expression();
|
||||
|
||||
if( db_expression )
|
||||
{
|
||||
pt::TextStream str;
|
||||
(db_expression->*prepare_fetch_method)(cursor_name, count, str);
|
||||
fetch(str);
|
||||
}
|
||||
}
|
||||
else
|
||||
{
|
||||
put_cursor_not_declared_log();
|
||||
}
|
||||
|
||||
return *this;
|
||||
}
|
||||
|
||||
|
||||
virtual Cursor & fetch(prepare_fetch_size_count_method_type prepare_fetch_method, size_t count)
|
||||
{
|
||||
if( !cursor_name.empty() )
|
||||
{
|
||||
DbExpression * db_expression = get_db_expression();
|
||||
|
||||
if( db_expression )
|
||||
{
|
||||
pt::TextStream str;
|
||||
(db_expression->*prepare_fetch_method)(cursor_name, count, str);
|
||||
fetch(str);
|
||||
}
|
||||
}
|
||||
else
|
||||
{
|
||||
put_cursor_not_declared_log();
|
||||
}
|
||||
|
||||
return *this;
|
||||
}
|
||||
|
||||
|
||||
template<typename ContainerType>
|
||||
|
|
@ -359,7 +580,7 @@ protected:
|
|||
|
||||
if( db_connector )
|
||||
{
|
||||
res = select_status;
|
||||
res = last_query_status;
|
||||
|
||||
try
|
||||
{
|
||||
|
|
@ -448,6 +669,38 @@ protected:
|
|||
}
|
||||
|
||||
|
||||
pt::Log * get_logger()
|
||||
{
|
||||
if( model_connector )
|
||||
{
|
||||
return model_connector->get_logger();
|
||||
}
|
||||
|
||||
return nullptr;
|
||||
}
|
||||
|
||||
|
||||
void put_log(pt::Log::Manipulators level, const char * msg)
|
||||
{
|
||||
pt::Log * plog = get_logger();
|
||||
|
||||
if( plog )
|
||||
{
|
||||
(*plog) << level << msg << pt::Log::logend;
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
void put_cursor_fetch_query_too_long()
|
||||
{
|
||||
put_log(pt::Log::log2, "Morm: error: a fetch query should be less than 256 characters long");
|
||||
}
|
||||
|
||||
|
||||
void put_cursor_not_declared_log()
|
||||
{
|
||||
put_log(pt::Log::log2, "Morm: you cannot use fetch* methods, a cursor has not been declared, use Finder::declare_cursor(...) to declare a cursor");
|
||||
}
|
||||
|
||||
};
|
||||
|
||||
|
|
|
|||
|
|
@ -5,7 +5,7 @@
|
|||
*/
|
||||
|
||||
/*
|
||||
* Copyright (c) 2018-2022, Tomasz Sowa
|
||||
* Copyright (c) 2018-2023, Tomasz Sowa
|
||||
* All rights reserved.
|
||||
*
|
||||
* Redistribution and use in source and binary forms, with or without
|
||||
|
|
@ -144,6 +144,11 @@ bool DbConnector::query_remove(const char * query_str, QueryResult & query_resul
|
|||
return query(query_str, query_result);
|
||||
}
|
||||
|
||||
bool DbConnector::query_declare_cursor(const char * query_str, QueryResult & query_result)
|
||||
{
|
||||
return query(query_str, query_result);
|
||||
}
|
||||
|
||||
|
||||
|
||||
bool DbConnector::query_select(const pt::TextStream & stream, QueryResult & query_result)
|
||||
|
|
@ -166,6 +171,12 @@ bool DbConnector::query_remove(const pt::TextStream & stream, QueryResult & quer
|
|||
return query(stream, query_result);
|
||||
}
|
||||
|
||||
bool DbConnector::query_declare_cursor(const pt::TextStream & stream, QueryResult & query_result)
|
||||
{
|
||||
return query(stream, query_result);
|
||||
}
|
||||
|
||||
|
||||
|
||||
bool DbConnector::begin()
|
||||
{
|
||||
|
|
@ -910,4 +921,6 @@ const char * DbConnector::query_last_sequence(const wchar_t * sequence_table_nam
|
|||
return nullptr;
|
||||
}
|
||||
|
||||
|
||||
|
||||
}
|
||||
|
|
|
|||
|
|
@ -5,7 +5,7 @@
|
|||
*/
|
||||
|
||||
/*
|
||||
* Copyright (c) 2018-2022, Tomasz Sowa
|
||||
* Copyright (c) 2018-2023, Tomasz Sowa
|
||||
* All rights reserved.
|
||||
*
|
||||
* Redistribution and use in source and binary forms, with or without
|
||||
|
|
@ -86,11 +86,14 @@ public:
|
|||
virtual bool query_update(const char * query_str, QueryResult & query_result);
|
||||
virtual bool query_insert(const char * query_str, QueryResult & query_result);
|
||||
virtual bool query_remove(const char * query_str, QueryResult & query_result);
|
||||
virtual bool query_declare_cursor(const char * query_str, QueryResult & query_result);
|
||||
|
||||
virtual bool query_select(const pt::TextStream & stream, QueryResult & query_result);
|
||||
virtual bool query_update(const pt::TextStream & stream, QueryResult & query_result);
|
||||
virtual bool query_insert(const pt::TextStream & stream, QueryResult & query_result);
|
||||
virtual bool query_remove(const pt::TextStream & stream, QueryResult & query_result);
|
||||
virtual bool query_declare_cursor(const pt::TextStream & stream, QueryResult & query_result);
|
||||
|
||||
|
||||
/*
|
||||
* create a new transaction
|
||||
|
|
@ -208,7 +211,6 @@ protected:
|
|||
virtual bool rollback_one_transaction(size_t index);
|
||||
virtual bool commit_one_transaction(size_t index);
|
||||
|
||||
|
||||
private:
|
||||
|
||||
unsigned int unescape_hex_char_part(char hex);
|
||||
|
|
|
|||
|
|
@ -397,7 +397,69 @@ void DbExpression::add_rows_counter_column(Model & model)
|
|||
|
||||
|
||||
|
||||
void DbExpression::prepare_declare_cursor_query(const pt::TextStream & cursor_name, bool scroll_cursor, pt::TextStream & out_stream)
|
||||
{
|
||||
out_stream << "DECLARE " << cursor_name;
|
||||
|
||||
if( scroll_cursor )
|
||||
out_stream << " SCROLL";
|
||||
|
||||
out_stream << " CURSOR FOR ";
|
||||
}
|
||||
|
||||
|
||||
void DbExpression::prepare_fetch_next_query(const pt::TextStream & cursor_name, pt::TextStream & out_stream)
|
||||
{
|
||||
out_stream << "FETCH NEXT FROM " << cursor_name;
|
||||
}
|
||||
|
||||
|
||||
void DbExpression::prepare_fetch_prior_query(const pt::TextStream & cursor_name, pt::TextStream & out_stream)
|
||||
{
|
||||
out_stream << "FETCH PRIOR FROM " << cursor_name;
|
||||
}
|
||||
|
||||
|
||||
void DbExpression::prepare_fetch_first_query(const pt::TextStream & cursor_name, pt::TextStream & out_stream)
|
||||
{
|
||||
out_stream << "FETCH FIRST FROM " << cursor_name;
|
||||
}
|
||||
|
||||
|
||||
void DbExpression::prepare_fetch_last_query(const pt::TextStream & cursor_name, pt::TextStream & out_stream)
|
||||
{
|
||||
out_stream << "FETCH LAST FROM " << cursor_name;
|
||||
}
|
||||
|
||||
|
||||
void DbExpression::prepare_fetch_absotule_query(const pt::TextStream & cursor_name, long position, pt::TextStream & out_stream)
|
||||
{
|
||||
out_stream << "FETCH ABSOLUTE " << position << " FROM " << cursor_name;
|
||||
}
|
||||
|
||||
|
||||
void DbExpression::prepare_fetch_relative_query(const pt::TextStream & cursor_name, long position, pt::TextStream & out_stream)
|
||||
{
|
||||
out_stream << "FETCH RELATIVE " << position << " FROM " << cursor_name;
|
||||
}
|
||||
|
||||
|
||||
void DbExpression::prepare_fetch_forward_count_query(const pt::TextStream & cursor_name, size_t len, pt::TextStream & out_stream)
|
||||
{
|
||||
out_stream << "FETCH FORWARD " << len << " FROM " << cursor_name;
|
||||
}
|
||||
|
||||
|
||||
void DbExpression::prepare_fetch_backward_count_query(const pt::TextStream & cursor_name, size_t len, pt::TextStream & out_stream)
|
||||
{
|
||||
out_stream << "FETCH BACKWARD " << len << " FROM " << cursor_name;
|
||||
}
|
||||
|
||||
|
||||
void DbExpression::prepare_fetch_all_query(const pt::TextStream & cursor_name, pt::TextStream & out_stream)
|
||||
{
|
||||
out_stream << "FETCH ALL FROM " << cursor_name;
|
||||
}
|
||||
|
||||
|
||||
}
|
||||
|
|
|
|||
|
|
@ -78,6 +78,17 @@ public:
|
|||
|
||||
virtual void generate_rows_counter_column_name(ModelEnv & model_env, pt::TextStream & str);
|
||||
|
||||
virtual void prepare_declare_cursor_query(const pt::TextStream & cursor_name, bool scroll_cursor, pt::TextStream & out_stream);
|
||||
virtual void prepare_fetch_next_query(const pt::TextStream & cursor_name, pt::TextStream & out_stream);
|
||||
virtual void prepare_fetch_prior_query(const pt::TextStream & cursor_name, pt::TextStream & out_stream);
|
||||
virtual void prepare_fetch_first_query(const pt::TextStream & cursor_name, pt::TextStream & out_stream);
|
||||
virtual void prepare_fetch_last_query(const pt::TextStream & cursor_name, pt::TextStream & out_stream);
|
||||
virtual void prepare_fetch_absotule_query(const pt::TextStream & cursor_name, long position, pt::TextStream & out_stream);
|
||||
virtual void prepare_fetch_relative_query(const pt::TextStream & cursor_name, long position, pt::TextStream & out_stream);
|
||||
virtual void prepare_fetch_forward_count_query(const pt::TextStream & cursor_name, size_t len, pt::TextStream & out_stream);
|
||||
virtual void prepare_fetch_backward_count_query(const pt::TextStream & cursor_name, size_t len, pt::TextStream & out_stream);
|
||||
virtual void prepare_fetch_all_query(const pt::TextStream & cursor_name, pt::TextStream & out_stream);
|
||||
|
||||
|
||||
protected:
|
||||
|
||||
|
|
|
|||
105
src/finder.h
105
src/finder.h
|
|
@ -58,65 +58,42 @@ public:
|
|||
|
||||
Finder()
|
||||
{
|
||||
model_connector = nullptr;
|
||||
out_stream = nullptr;
|
||||
db_expression = nullptr;
|
||||
was_query_error = false;
|
||||
model_data = nullptr;
|
||||
rows_counter_name = nullptr;
|
||||
initialize();
|
||||
}
|
||||
|
||||
|
||||
Finder(pt::TextStream & out_stream)
|
||||
{
|
||||
initialize();
|
||||
this->out_stream = &out_stream;
|
||||
this->model_connector = nullptr;
|
||||
db_expression = nullptr;
|
||||
was_query_error = false;
|
||||
model_data = nullptr;
|
||||
rows_counter_name = nullptr;
|
||||
}
|
||||
|
||||
Finder(ModelConnector & model_connector)
|
||||
{
|
||||
initialize();
|
||||
this->model_connector = &model_connector;
|
||||
out_stream = nullptr;
|
||||
db_expression = nullptr;
|
||||
was_query_error = false;
|
||||
model_data = nullptr;
|
||||
rows_counter_name = nullptr;
|
||||
set_out_stream();
|
||||
}
|
||||
|
||||
Finder(ModelConnector * model_connector)
|
||||
{
|
||||
initialize();
|
||||
this->model_connector = model_connector;
|
||||
out_stream = nullptr;
|
||||
db_expression = nullptr;
|
||||
was_query_error = false;
|
||||
model_data = nullptr;
|
||||
rows_counter_name = nullptr;
|
||||
set_out_stream();
|
||||
}
|
||||
|
||||
Finder(pt::TextStream & out_stream, ModelConnector & model_connector)
|
||||
{
|
||||
initialize();
|
||||
this->out_stream = &out_stream;
|
||||
this->model_connector = &model_connector;
|
||||
db_expression = nullptr;
|
||||
was_query_error = false;
|
||||
model_data = nullptr;
|
||||
rows_counter_name = nullptr;
|
||||
}
|
||||
|
||||
Finder(pt::TextStream & out_stream, ModelConnector * model_connector)
|
||||
{
|
||||
initialize();
|
||||
this->out_stream = &out_stream;
|
||||
this->model_connector = model_connector;
|
||||
db_expression = nullptr;
|
||||
was_query_error = false;
|
||||
model_data = nullptr;
|
||||
rows_counter_name = nullptr;
|
||||
}
|
||||
|
||||
Finder<ModelClass> & set_connector(ModelConnector * model_connector)
|
||||
|
|
@ -159,13 +136,29 @@ public:
|
|||
|
||||
Finder<ModelClass> & set_rows_counter_name(const wchar_t * rows_counter_name)
|
||||
{
|
||||
this->rows_counter_name = rows_counter_name;
|
||||
this->rows_counter_name = rows_counter_name; // may use a pt::TextStream?
|
||||
return *this;
|
||||
}
|
||||
|
||||
Finder<ModelClass> & set_rows_counter_name(const std::wstring & rows_counter_name)
|
||||
{
|
||||
this->rows_counter_name = &rows_counter_name;
|
||||
this->rows_counter_name = rows_counter_name.c_str();
|
||||
return *this;
|
||||
}
|
||||
|
||||
Finder<ModelClass> & declare_cursor(const char * cursor_name, bool scroll_cursor = false)
|
||||
{
|
||||
this->cursor_name.clear();
|
||||
this->cursor_name << cursor_name;
|
||||
this->scroll_cursor = scroll_cursor;
|
||||
return *this;
|
||||
}
|
||||
|
||||
Finder<ModelClass> & declare_cursor(const wchar_t * cursor_name, bool scroll_cursor = false)
|
||||
{
|
||||
this->cursor_name.clear();
|
||||
this->cursor_name << cursor_name;
|
||||
this->scroll_cursor = scroll_cursor;
|
||||
return *this;
|
||||
}
|
||||
|
||||
|
|
@ -185,6 +178,14 @@ public:
|
|||
{
|
||||
start_new_select(select_flags);
|
||||
|
||||
if( !cursor_name.empty() )
|
||||
{
|
||||
if( out_stream && db_expression )
|
||||
{
|
||||
db_expression->prepare_declare_cursor_query(cursor_name, scroll_cursor, *out_stream);
|
||||
}
|
||||
}
|
||||
|
||||
if( !select_flags.is_no_auto_generated_columns() )
|
||||
{
|
||||
generate_standard_select(select_flags);
|
||||
|
|
@ -196,6 +197,17 @@ public:
|
|||
|
||||
/*
|
||||
* used if we are not using auto generated selects
|
||||
*
|
||||
*
|
||||
* a sample how to get the id field, assuming the table name is 'mymodel'.
|
||||
* mymodel = finder.
|
||||
* select(morm::Select::no_auto_generated_columns).
|
||||
* use_table_prefix(true).
|
||||
* raw("SELECT id AS \"mymodel.id\"").
|
||||
* raw("FROM mymodel").
|
||||
* raw("WHERE id = 123").
|
||||
* get();
|
||||
*
|
||||
*/
|
||||
Finder<ModelClass> & use_table_prefix(bool use_table_prefix_for_fetching)
|
||||
{
|
||||
|
|
@ -1193,6 +1205,8 @@ public:
|
|||
cursor.set_has_autogenerated_select(model_env.has_autogenerated_select);
|
||||
cursor.use_table_prefix(use_table_prefix_for_fetching);
|
||||
cursor.set_select_flags(model_env.select_flags);
|
||||
cursor.set_cursor_name(cursor_name);
|
||||
cursor.set_scroll_cursor(scroll_cursor);
|
||||
|
||||
if( model_env.select_flags.is_with_rows_counter() )
|
||||
{
|
||||
|
|
@ -1215,11 +1229,22 @@ public:
|
|||
cursor.set_query_result(query_result);
|
||||
query_result->references_count = 1;
|
||||
|
||||
bool status = db_connector->query_select(*out_stream, *query_result);
|
||||
cursor.set_select_status(status);
|
||||
if( cursor_name.empty() )
|
||||
{
|
||||
bool status = db_connector->query_select(*out_stream, *query_result);
|
||||
cursor.set_last_query_status(status);
|
||||
}
|
||||
else
|
||||
{
|
||||
bool status = db_connector->query_declare_cursor(*out_stream, *query_result);
|
||||
cursor.set_last_query_status(status);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
if( !cursor_name.empty() )
|
||||
cursor_name.clear();
|
||||
|
||||
return cursor;
|
||||
}
|
||||
|
||||
|
|
@ -1439,8 +1464,22 @@ private:
|
|||
ModelData * model_data;
|
||||
bool use_table_prefix_for_fetching;
|
||||
const wchar_t * rows_counter_name;
|
||||
pt::TextStream cursor_name;
|
||||
bool scroll_cursor;
|
||||
|
||||
|
||||
void initialize()
|
||||
{
|
||||
out_stream = nullptr;
|
||||
model_connector = nullptr;
|
||||
db_expression = nullptr;
|
||||
was_query_error = false;
|
||||
model_data = nullptr;
|
||||
use_table_prefix_for_fetching = false;
|
||||
rows_counter_name = nullptr;
|
||||
scroll_cursor = false;
|
||||
}
|
||||
|
||||
void set_db_expression()
|
||||
{
|
||||
if( model_connector )
|
||||
|
|
|
|||
|
|
@ -5,7 +5,7 @@
|
|||
*/
|
||||
|
||||
/*
|
||||
* Copyright (c) 2018-2022, Tomasz Sowa
|
||||
* Copyright (c) 2018-2023, Tomasz Sowa
|
||||
* All rights reserved.
|
||||
*
|
||||
* Redistribution and use in source and binary forms, with or without
|
||||
|
|
@ -207,14 +207,14 @@ bool PostgreSQLConnector::query(const std::string & query_str, QueryResult & que
|
|||
}
|
||||
|
||||
|
||||
bool PostgreSQLConnector::query_select(const char * query_str, QueryResult & query_result)
|
||||
bool PostgreSQLConnector::query_command(const char * query_str, QueryResult & query_result, ExecStatusType expected_status)
|
||||
{
|
||||
PostgreSQLQueryResult * psql_result = dynamic_cast<PostgreSQLQueryResult*>(&query_result);
|
||||
bool result = false;
|
||||
|
||||
if( psql_result )
|
||||
{
|
||||
result = (do_query(query_str, psql_result) && psql_result->psql_status == PGRES_TUPLES_OK);
|
||||
result = (do_query(query_str, psql_result) && psql_result->psql_status == expected_status);
|
||||
psql_result->status = result;
|
||||
}
|
||||
|
||||
|
|
@ -222,48 +222,29 @@ bool PostgreSQLConnector::query_select(const char * query_str, QueryResult & que
|
|||
}
|
||||
|
||||
|
||||
bool PostgreSQLConnector::query_select(const char * query_str, QueryResult & query_result)
|
||||
{
|
||||
return query_command(query_str, query_result, PGRES_TUPLES_OK);
|
||||
}
|
||||
|
||||
bool PostgreSQLConnector::query_update(const char * query_str, QueryResult & query_result)
|
||||
{
|
||||
PostgreSQLQueryResult * psql_result = dynamic_cast<PostgreSQLQueryResult*>(&query_result);
|
||||
bool result = false;
|
||||
|
||||
if( psql_result )
|
||||
{
|
||||
result = (do_query(query_str, psql_result) && psql_result->psql_status == PGRES_COMMAND_OK);
|
||||
psql_result->status = result;
|
||||
}
|
||||
|
||||
return result;
|
||||
return query_command(query_str, query_result, PGRES_COMMAND_OK);
|
||||
}
|
||||
|
||||
|
||||
bool PostgreSQLConnector::query_insert(const char * query_str, QueryResult & query_result)
|
||||
{
|
||||
PostgreSQLQueryResult * psql_result = dynamic_cast<PostgreSQLQueryResult*>(&query_result);
|
||||
bool result = false;
|
||||
|
||||
if( psql_result )
|
||||
{
|
||||
result = (do_query(query_str, psql_result) && psql_result->psql_status == PGRES_COMMAND_OK);
|
||||
psql_result->status = result;
|
||||
}
|
||||
|
||||
return result;
|
||||
return query_command(query_str, query_result, PGRES_COMMAND_OK);
|
||||
}
|
||||
|
||||
|
||||
bool PostgreSQLConnector::query_remove(const char * query_str, QueryResult & query_result)
|
||||
{
|
||||
PostgreSQLQueryResult * psql_result = dynamic_cast<PostgreSQLQueryResult*>(&query_result);
|
||||
bool result = false;
|
||||
return query_command(query_str, query_result, PGRES_COMMAND_OK);
|
||||
}
|
||||
|
||||
if( psql_result )
|
||||
{
|
||||
result = (do_query(query_str, psql_result) && psql_result->psql_status == PGRES_COMMAND_OK);
|
||||
psql_result->status = result;
|
||||
}
|
||||
|
||||
return result;
|
||||
bool PostgreSQLConnector::query_declare_cursor(const char * query_str, QueryResult & query_result)
|
||||
{
|
||||
return query_command(query_str, query_result, PGRES_COMMAND_OK);
|
||||
}
|
||||
|
||||
|
||||
|
|
@ -291,6 +272,11 @@ bool PostgreSQLConnector::query_remove(const pt::TextStream & stream, QueryResul
|
|||
return query_remove(query_str.c_str(), query_result);
|
||||
}
|
||||
|
||||
bool PostgreSQLConnector::query_declare_cursor(const pt::TextStream & stream, QueryResult & query_result)
|
||||
{
|
||||
stream.to_str(query_str);
|
||||
return query_declare_cursor(query_str.c_str(), query_result);
|
||||
}
|
||||
|
||||
|
||||
|
||||
|
|
|
|||
|
|
@ -5,7 +5,7 @@
|
|||
*/
|
||||
|
||||
/*
|
||||
* Copyright (c) 2018-2022, Tomasz Sowa
|
||||
* Copyright (c) 2018-2023, Tomasz Sowa
|
||||
* All rights reserved.
|
||||
*
|
||||
* Redistribution and use in source and binary forms, with or without
|
||||
|
|
@ -63,12 +63,13 @@ public:
|
|||
bool query_update(const char * query_str, QueryResult & query_result);
|
||||
bool query_insert(const char * query_str, QueryResult & query_result);
|
||||
bool query_remove(const char * query_str, QueryResult & query_result);
|
||||
bool query_declare_cursor(const char * query_str, QueryResult & query_result);
|
||||
|
||||
bool query_select(const pt::TextStream & stream, QueryResult & query_result);
|
||||
bool query_update(const pt::TextStream & stream, QueryResult & query_result);
|
||||
bool query_insert(const pt::TextStream & stream, QueryResult & query_result);
|
||||
bool query_remove(const pt::TextStream & stream, QueryResult & query_result);
|
||||
|
||||
bool query_declare_cursor(const pt::TextStream & stream, QueryResult & query_result);
|
||||
|
||||
/*
|
||||
* https://www.postgresql.org/docs/14/libpq-connect.html#LIBPQ-CONNSTRING
|
||||
|
|
@ -145,6 +146,7 @@ protected:
|
|||
virtual void connect();
|
||||
|
||||
virtual bool do_query(const char * query_str, PostgreSQLQueryResult * psql_result);
|
||||
virtual bool query_command(const char * query_str, QueryResult & query_result, ExecStatusType expected_status);
|
||||
virtual void allocate_default_expression();
|
||||
virtual void overwrite(pt::TextStream & stream);
|
||||
virtual const char * query_last_sequence(const wchar_t * sequence_table_name);
|
||||
|
|
|
|||
Loading…
Reference in New Issue