ccORM is the best ORM object relational mapping underlying library, which adopts the most philosophical, classic and minimalist design, low code and modular development, and friendly user experience. 🚀 Support Linux and Windows Platforms(Mac platform does not adapt string type detection temporarily), performance surpasses RTTI and protobuf and is compile time static reflection. As the name suggests, it is already an optimized machine code.
M_TABLE
Many to many queries, index columns, unique keys, and cache queries....
class Tab;
class Type; D_M_TABLE(Type, Tab);
Class(Tab)
uint32_t id;
bool ok;
text<15> name;
tm date;
vector<Type> types;
Type* type;
Tab(uint32_t a = 0, bool b = false, const char* c = "", tm d = now(), vector<Type> e = {}, Type* f = nullptr) :
id(a), ok(b), name(c), date(d), types(e), type(f) {}
~Tab() { type = nullptr; }
FIELD(id, ok, name, date)
CLASS(Tab, id, ok, name, date, types, type)
PROTO(Tab, id, ok, name, date)
REGIST(Tab,
TC::PRIMARY_KEY | TC::AUTO_INCREMENT, "",
TC::DEFAULT, "false",
TC::DEFAULT, "ww'zzgg",
TC::DEFAULT | TC::NOT_NULL, "");
Class(Type)
uint8_t id;
text<10> language;
double bigBlob;
vector<Tab> tabs;
Tab* tab;
Type(uint8_t a = 0, const char* b = "", double c = 0, vector<Tab> d = {}, Tab* e = nullptr) :
id(a), language(b), bigBlob(c), tabs(d), tab(e) {}
~Type() { tab = nullptr; }
FIELD(id, language, bigBlob)
CLASS(Type, id, language, bigBlob, tabs, tab)
PROTO(Type, id, language, bigBlob)
REGIST(Type,
TC::PRIMARY_KEY | TC::AUTO_INCREMENT, "",
TC::DEFAULT, "c/c++",
TC::EMPTY, "");
M_TABLE(Type, id, Tab, id)
#include "src/ccORM.hh"
auto D =
//D_mysql();
//D_pgsql();
D_sqlite("any.db");//Select database
#include "module.hpp"
void test() {
Tab::ptr t = Tab::create(1, true, "Date change", now(), vector<Type>{ Type{ 1,"typescript" } });
t->Update();//update
t->set(5, false, "yield", now(), vector<Type>{ Type{ 1,"python" }, Type{ 2,"ruby" } }); cout << t << '\n';
*t = json::parse(R"({"id":4,"ok":false,"name":"Flawless masterpiece","date":"2021-09-08 01:04:30","types":
[{"id":1,"language":"c++"},{"id":2,"tabs":[{"id":1,"name":"wtf!","ok":1}]},{"id":3,"language":"rust"}]})").get<Tab>();
t->lang[1].language = "golang"; cout << t << '\n';//Loose boolean type deserialization, adding 0,1 support
t->Insert();//insert, the return value is long long type
cout << Tab::Q().GetArr();
t->Delete();//delete
*t = Tab::Q().where(Tab::$id == 1).GetOne(); cout << t << '\n';
}
int main() {
clock_t start = clock(); test();
Timer t; bool run = true;
t.setTimeout([&run] {
int i = 0; for (; i < 99999; ++i) {
Tab::Q().where(Tab::$id == 2).GetOne(); } printf("<%d>", i);
run = false;
}, 6);
int i = 0; for (; i < 98888; ++i) {
Tab::Q().where(Tab::$id == 1).GetOne();
}//Multithreading test
printf("<%d>", i);
while (run) { this_thread::yield(); }
printf("\nuse %.6f seconds", (float)(clock() - start) / CLOCKS_PER_SEC);
return 0;
}
Cmake requirements: [it is best to install package with vcpkg]
mkdir build
cd build
cmake ..
cmake --build .
If the switch changes, perform the required switch options, eg:
cmake -DFastestDev=OFF -DIsDevMode=OFF --build ./
cmake -DFastestDev=OFF -DIsDevMode=ON --build ./
cmake -DFastestDev=ON -DIsDevMode=ON --build ./
then
cmake --build .
Or the following method corresponds to the above switch options. This is just an example.
Note: please modify 'build' yourself_ linux. SH file Pass
sh/ build_ linux. SH ` compile
g++ -DFastestDev=0 -DIsDevMode=0 ... In the online environment, the table will not be rebuilt
g++ -DFastestDev=0 -DIsDevMode=1 ... Do not re create the table (the table structure is not changed and can be used), and the development environment
g++ -DFastestDev=1 -DIsDevMode=1 ... Each time, the table will be rebuilt to develop the environment
- Linux: G++ 9.2, Clang++ 9.0
- MacOS: Apple clang version 12.0.0
- Windows: MSVC C++ compiler version 1930.
Constexpr -> lowercase + uppercase hump separation, and the last one is uppercase ending => nameBegiN
Static attribute -> _
Beginning, followed by all lowercase + underscore => _name_begin
Static global variables -> res_
Beginning, followed by all uppercase + underscore => RES_NAME_BEGIN
private Attribute -> lowercase + uppercase hump separation, _
Finishing => nameBegin_
public Attribute -> lowercase + uppercase hump separation => nameBegin
Parameter -> lowercase + underscore => name_begin
Special fields -> _
Beginning, separated by lowercase + underline in the middle, _
Finishing => _name_begin_
Struct or class -> starts with uppercase, followed by lowercase + uppercase, separated by hump => NameBegin
Macro or static constexpr -> uppercase + underscore => NAME_BEGIN
ccORM uses the following libraries.
lithium
https://github.com/matt-42/lithium
Copyright (c) 2014 Matthieu Garrigues
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.
json
https://github.com/nlohmann/json
Copyright (c) 2013-2021 Niels Lohmann
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.
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