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ORM library to build SQLite based application in format model/dao/service.

Project description


ORM library to build SQLite based application in format model/dao/service.

Getting Started

These instructions will get you a copy of the project up and running on your local machine for development and testing purposes. See deployment for notes on how to deploy the project on a live system.


At first, you need SQLite3 to be installed. Type following in your terminal:

apt-get install libsqlite3-dev

To install the package type the following in your terminal:

sudo pip install sqller

Running the tests

To run tests type the following in your terminal:

python3 -m pytest


python -m pytest

if the previous command doesn't work.


The usage of the library in real application consists of the following steps:

  • Create a model
  • Create a data access object (DAO)
  • Create a service
  • Use the service

The steps are described below.

Create model

class Chat(metaclass=sqller.ModelMeta):
    NAME = 'chats'
    FIELDS = [
        Field(name="id", dtype="integer", postfix="PRIMARY KEY"),
        Field(name="type", dtype="text"),
        Field(name="last_name", dtype="text"),
        Field(name="first_name", dtype="text"),
        Field(name="username", dtype="text"),
        Field(name="chat_id", dtype="integer")

Create DAO

class ChatDAO(metaclass=sqller.DAOMeta):
    MODEL = Chat

Create service

class TelegramService(metaclass=sqller.ServiceMeta):
    MODELS = [

    def save_chat_info(chat: telebot.types.Chat):
        obj_exist_checker = models.Chat(
        obj = models.Chat(
            type = chat.type,
            last_name = chat.last_name,
            first_name = chat.first_name,
            username = chat.username,
        sql_exists = dao.ChatDAO.sql_exists(obj_exist_checker)
        sql_save = dao.ChatDAO.sql_save(obj)
        exists = TelegramService.execute(sql_exists)[0][0]
        if not exists:

Use service



Please read for details on our code of conduct, and the process for submitting pull requests to us.


We use SemVer for versioning. For the versions available, see the tags on this repository.


See also the list of contributors who participated in this project.


This project is licensed under the MIT License - see the file for details

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