feat: entity events

Reviewed-on: BotForge/qbot#1

.gitea/workflows/build-deploy-docs.yml

@@ -0,0 +1,86 @@
+name: Build Docs
+on:
+  push:
+    branches:
+      - main
+
+jobs:
+  changes:
+    runs-on: ubuntu-latest
+    # Set job outputs to values from filter step
+    outputs:
+      docs: ${{ steps.filter.outputs.docs }}
+    steps:
+    # - name: Base requirements
+    #   run: |
+    #     apk update && apk add --no-cache nodejs
+    - uses: actions/checkout@v4
+    # For pull requests it's not necessary to checkout the code but for the main branch it is
+    - uses: dorny/paths-filter@v3
+      id: filter
+      with:
+        filters: |
+          docs:
+            - README.md
+            - docs/**
+            - requirements-docs.txt
+            - pyproject.toml
+            - mkdocs.yml
+            - Dockerfile.docs-site
+            - docker-compose.docs-site.yml
+            - .gitea/workflows/build-docs.yml
+            - .gitea/workflows/deploy-docs.yml
+
+  build-docs:
+    needs:
+      - changes
+    if: ${{ needs.changes.outputs.docs == 'true' }}
+    runs-on: ubuntu-latest
+    container:
+      image: catthehacker/ubuntu:act-22.04
+      
+    steps:
+      - uses: actions/checkout@v4
+      - name: Set up Python
+        uses: actions/setup-python@v5
+        with:
+          python-version: "3.13.2"
+      - name: Setup uv
+        uses: astral-sh/setup-uv@v5
+        with:
+          version: "0.6.3"
+          enable-cache: true
+          cache-dependency-glob: |
+            requirements**.txt
+            pyproject.toml
+      - name: Install docs extras
+        run: |
+          uv venv
+          uv pip install mkdocs-material
+      - name: Build Docs
+        run: .venv/bin/mkdocs build
+      - name: Build Docker Image
+        run: |
+          docker build -f Dockerfile.docs-site -t ${{ vars.STACK_NAME }} .
+          docker tag ${{ vars.STACK_NAME }}:latest registry.botforge.biz/${{ vars.STACK_NAME }}
+          docker login registry.botforge.biz -u ${{ secrets.REGISTRY_USER }} -p ${{ secrets.REGISTRY_PASSWORD }}
+          docker push registry.botforge.biz/${{ vars.STACK_NAME }}
+
+  deploy-docs:
+    needs:
+      - build-docs
+    runs-on: staging
+    env:
+      STACK_NAME: ${{ vars.STACK_NAME }}
+      DOMAIN: ${{ vars.DOMAIN }}
+    steps:
+      - uses: actions/checkout@v4
+      - name: Copy to working directory
+        run: |
+          mkdir -p ~/${{ vars.STACK_NAME }}
+          cp docker-compose.docs-site.yml ~/${{ vars.STACK_NAME }}/docker-compose.yml
+      - name: Start Docs Site
+        run: |
+          cd ~/${{ vars.STACK_NAME }}
+          docker compose up -d
+      

.gitignore

@@ -1,6 +1,10 @@
 __pycache__
-/backend/.venv
 .env
 .pytest_cache
-/backend/logs
-.DS_Store
+.DS_Store
+.venv
+.python-version
+uv.lock
+dist
+*.egg-info
+site

.python-version

@@ -0,0 +1 @@
+3.13

Dockerfile.docs-site

@@ -0,0 +1,10 @@
+FROM nginx
+
+WORKDIR /usr/share/nginx/html
+
+RUN rm -rf ./*
+COPY ./site/ ./
+
+CMD ["nginx", "-g", "daemon off;"]
+
+

LICENSE

@@ -0,0 +1,21 @@
+MIT License
+
+Copyright (c) 2025 Alexander Kalinovsky
+
+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.

README.md

@@ -0,0 +1,99 @@
+<p align="center">
+    <a href="https://qbot.botforge.biz"><img src="https://qbot.botforge.biz/img/qbot.svg" alt="QBot"></a>
+</p>
+<p align="center">
+    <em>Telegram Bots Rapid Application Development (RAD) Framework.</em>
+</p>
+
+**QBot** is a library for fast development of Telegram bots and mini-apps following the **RAD (Rapid Application Development)** principle in a **declarative style**.
+
+## Key Features
+
+- **Automatic CRUD Interface Generation** – Manage objects effortlessly without manual UI coding.
+- **Built-in Field Editors** – Includes text inputs, date/time pickers, boolean switches, enums, and entity selectors.
+- **Advanced Pagination & Filtering** – Easily organize and navigate large datasets.
+- **Authentication & Authorization** – Role-based access control for secure interactions.
+- **Context Preservation** – Store navigation stacks and user interaction states in the database.
+- **Internationalization Support** – Localizable UI and string fields for multilingual bots.
+
+**QBot** powered by **[FastAPI](https://fastapi.tiangolo.com)**, **[SQLModel](https://sqlmodel.tiangolo.com)** & **[aiogram](https://aiogram.dev)** – Leverage the full capabilities of these frameworks for high performance and flexibility.
+
+## Benefits
+
+- **Faster Development** – Automate repetitive tasks and build bots in record time.
+- **Highly Modular** – Easily extend and customize functionality.
+- **Less Code Duplication** – Focus on core features while QBot handles the rest.
+- **Enterprise-Grade Structure** – Scalable, maintainable, and optimized for real-world usage.
+
+## Example
+```python
+class AppEntity(BotEntity):
+    """
+    BotEntity - business entity. Based on SQLModel, which provides ORM functionality,
+    basic CRUD functions and additional metadata, describing entities view and behaviour
+    """
+    bot_entity_descriptor = Entity(         # metadata attribute
+        name = "bot_entity",                # Entity - descriptor for entity metadata
+        ...
+    )
+
+    name: str                               # entity field with default sqlmodel's FieldInfo descriptor
+                                            # and default qbot's field descriptor
+
+    description: str | None = Field(        # field with sqlmodel's descriptor
+        sa_type = String, index = True)     # and default qbot's descriptor
+
+    age: int = EntityField(                 # field with qbot's descriptor
+        caption = "Age",
+    )
+
+    user_id: int | None = EntityField(      # using both descriptors
+        sm_descriptor=Field(
+            sa_type=BigInteger,
+            foreign_key="user.id",
+            ondelete="RESTRICT",
+            nullable=True,
+        ),
+        is_visible=False,
+    )
+
+    user: Optional[User] = EntityField(     # using Relationship as sqlmodel descriptor
+        sm_descriptor=Relationship(
+            back_populates="entities",
+            sa_relationship_kwargs={
+                "lazy": "selectin",
+                "foreign_keys": "Entity.user_id",
+            }
+        ),
+        caption="User",
+    )
+
+
+app = QBotApp()                             # bot application based on FastAPI application
+                                            # providing Telegram API webhook handler
+
+@app.command(                               # decorator for bot commands definition
+    name="menu",
+    caption="Main menu",
+    show_in_bot_commands=True,              # shows command in bot's main menu
+    clear_navigation=True,                  # resets navigation stack between bot dialogues
+)
+async def menu(context: CommandCallbackContext):
+    context.message_text = "Main menu"      # message text
+    context.keyboard_builder.row(           # and buttons will be shown to user
+        InlineKeyboardButton(
+            text="Entities",
+            callback_data=ContextData(                  # callback query dataclass representing
+                command=CallbackCommand.ENTITY_LIST,    # navigation context and its parameters
+                entity_name="bot_entity"
+            ).pack(),
+        )
+    )
+```
+## Result
+
+<iframe width="100%" height="691" src="https://www.youtube.com/embed/ptTnoppkYfM" title="QBot Framework – The Open-Source RAD Tool for Telegram Bots" frameborder="0" allow="accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share" referrerpolicy="strict-origin-when-cross-origin" allowfullscreen></iframe>
+
+Here you can see the result - [YouTube Video with Bot](https://www.youtube.com/shorts/ptTnoppkYfM)
+
+

docker-compose.docs-site.yml

@@ -0,0 +1,20 @@
+services:
+  qbot-docs-site:
+    image: 'registry.botforge.biz/${STACK_NAME?Variable not set}:${TAG-latest}'
+    restart: always
+    networks:
+      - traefik-public
+    labels:
+      - traefik.enable=true
+      - traefik.docker.network=traefik-public
+      - traefik.constraint-label=traefik-public
+      - traefik.http.services.${STACK_NAME?Variable not set}.loadbalancer.server.port=80
+      - traefik.http.routers.${STACK_NAME?Variable not set}.rule=Host(`${DOMAIN?Variable not set}`)
+      - traefik.http.routers.${STACK_NAME?Variable not set}.entrypoints=websecure
+      - traefik.http.routers.${STACK_NAME?Variable not set}.tls=true
+      - traefik.http.routers.${STACK_NAME?Variable not set}.tls.certresolver=le
+      - traefik.http.routers.${STACK_NAME?Variable not set}.service=${STACK_NAME?Variable not set}
+
+networks:
+  traefik-public:
+    external: true

docs/img/qbot.svg

@@ -0,0 +1,65 @@
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docs/img/qbot_1_1.svg

@@ -0,0 +1,59 @@
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+<!-- Created with Inkscape (http://www.inkscape.org/) -->
+
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+   width="500"
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+   sodipodi:docname="qbot_1_1.svg"
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+   xmlns:sodipodi="http://sodipodi.sourceforge.net/DTD/sodipodi-0.dtd"
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+     inkscape:pagecheckerboard="0"
+     inkscape:deskcolor="#d1d1d1"
+     inkscape:document-units="px"
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+     inkscape:window-width="1608"
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+     inkscape:window-x="8"
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+     inkscape:window-maximized="0"
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+     inkscape:groupmode="layer"
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docs/index.md

@@ -0,0 +1,101 @@
+<style>
+    h1 { display: none; }
+</style>
+
+<p align="center">
+    <a href="https://qbot.botforge.biz"><img src="img/qbot.svg" alt="QBot"></a>
+</p>
+<p align="center">
+    <em>Telegram Bots Rapid Application Development (RAD) Framework.</em>
+</p>
+
+**QBot** is a library for fast development of Telegram bots and mini-apps following the **RAD (Rapid Application Development)** principle in a **declarative style**.
+
+## Key Features
+
+- **Automatic CRUD Interface Generation** – Manage objects effortlessly without manual UI coding.
+- **Built-in Field Editors** – Includes text inputs, date/time pickers, boolean switches, enums, and entity selectors.
+- **Advanced Pagination & Filtering** – Easily organize and navigate large datasets.
+- **Authentication & Authorization** – Role-based access control for secure interactions.
+- **Context Preservation** – Store navigation stacks and user interaction states in the database.
+- **Internationalization Support** – Localizable UI and string fields for multilingual bots.
+
+**QBot** powered by **[FastAPI](https://fastapi.tiangolo.com)**, **[SQLModel](https://sqlmodel.tiangolo.com)** & **[aiogram](https://aiogram.dev)** – Leverage the full capabilities of these frameworks for high performance and flexibility.
+
+## Benefits
+
+- **Faster Development** – Automate repetitive tasks and build bots in record time.
+- **Highly Modular** – Easily extend and customize functionality.
+- **Less Code Duplication** – Focus on core features while QBot handles the rest.
+- **Enterprise-Grade Structure** – Scalable, maintainable, and optimized for real-world usage.
+
+## Example
+```python
+class AppEntity(BotEntity):
+    """
+    BotEntity - business entity. Based on SQLModel, which provides ORM functionality,
+    basic CRUD functions and additional metadata, describing entities view and behaviour
+    """
+    bot_entity_descriptor = Entity(         # metadata attribute
+        name = "bot_entity",                # Entity - descriptor for entity metadata
+        ...
+    )
+
+    name: str                               # entity field with default sqlmodel's FieldInfo descriptor
+                                            # and default qbot's field descriptor
+
+    description: str | None = Field(        # field with sqlmodel's descriptor
+        sa_type = String, index = True)     # and default qbot's descriptor
+
+    age: int = EntityField(                 # field with qbot's descriptor
+        caption = "Age",
+    )
+
+    user_id: int | None = EntityField(      # using both descriptors
+        sm_descriptor=Field(
+            sa_type=BigInteger,
+            foreign_key="user.id",
+            ondelete="RESTRICT",
+            nullable=True,
+        ),
+        is_visible=False,
+    )
+
+    user: Optional[User] = EntityField(     # using Relationship as sqlmodel descriptor
+        sm_descriptor=Relationship(
+            back_populates="entities",
+            sa_relationship_kwargs={
+                "lazy": "selectin",
+                "foreign_keys": "Entity.user_id",
+            }
+        ),
+        caption="User",
+    )
+
+
+app = QBotApp()                             # bot application based on FastAPI application
+                                            # providing Telegram API webhook handler
+
+@app.command(                               # decorator for bot commands definition
+    name="menu",
+    caption="Main menu",
+    show_in_bot_commands=True,              # shows command in bot's main menu
+    clear_navigation=True,                  # resets navigation stack between bot dialogues
+)
+async def menu(context: CommandCallbackContext):
+    context.message_text = "Main menu"      # message text
+    context.keyboard_builder.row(           # and buttons will be shown to user
+        InlineKeyboardButton(
+            text="Entities",
+            callback_data=ContextData(                  # callback query dataclass representing
+                command=CallbackCommand.ENTITY_LIST,    # navigation context and its parameters
+                entity_name="bot_entity"
+            ).pack(),
+        )
+    )
+```
+## Result
+
+<iframe width="100%" height="691" src="https://www.youtube.com/embed/ptTnoppkYfM" title="QBot Framework – The Open-Source RAD Tool for Telegram Bots" frameborder="0" allow="accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share" referrerpolicy="strict-origin-when-cross-origin" allowfullscreen></iframe>
+
+forced_change_

mkdocs.yml

@@ -0,0 +1,14 @@
+site_name: QBot Framework
+site_url: https://qbot.botforge.biz
+theme:
+  name: material
+  palette:
+    primary: #fabf9c
+    accent: #a7a7fa
+  font:
+    text: 'Roboto'
+    code: 'Roboto Mono'
+  logo: 'img/qbot_1_1.svg'
+  favicon: 'img/qbot_1_1.svg'
+repo_name: botforge/qbot
+repo_url: https://git.botforge.biz/botforge/qbot

pyproject.toml

@@ -0,0 +1,29 @@
+[project]
+name = "quickbot"
+version = "0.1.0"
+description = "QBot - Rapid Application Development Framework for Telegram Bots"
+readme = "README.md"
+requires-python = ">=3.12"
+classifiers = [
+    "Programming Language :: Python :: 3",
+    "Operating System :: OS Independent",
+    "Development Status :: 3 - Alpha",
+]
+authors = [
+    { name = "Alexander Kalinovsky", email = "ak@botforge.biz" },
+]
+license = { file = "LICENSE" }
+
+dependencies = [
+    "aiogram>=3.17.0",
+    "babel>=2.17.0",
+    "fastapi[standard]>=0.115.8",
+    "greenlet>=3.1.1",
+    "mkdocs-material>=9.6.5",
+    "pydantic-settings>=2.7.1",
+    "pyngrok>=7.2.3",
+    "pytest>=8.3.4",
+    "ruff>=0.9.6",
+    "sqlmodel>=0.0.22",
+    "ujson>=5.10.0",
+]

src/qbot/__init__.py

@@ -12,8 +12,10 @@ from .model.descriptors import (
     EntityField as EntityField,
     EntityForm as EntityForm,
     EntityList as EntityList,
+    Filter as Filter,
     EntityPermission as EntityPermission,
     CommandCallbackContext as CommandCallbackContext,
+    EntityEventContext as EntityEventContext,
     CommandButton as CommandButton,
     FieldEditButton as FieldEditButton,
     InlineButton as InlineButton,

src/qbot/api_route/telegram.py

@@ -10,7 +10,6 @@ from logging import getLogger
 
 
 logger = getLogger(__name__)
-logger.setLevel("DEBUG")
 router = APIRouter()
 
 

src/qbot/bot/handlers/common/filtering.py

@@ -6,7 +6,7 @@ from ....utils.main import get_callable_str
 from ..context import ContextData, CallbackCommand
 
 
-def add_filter_controls(
+async def add_filter_controls(
     keyboard_builder: InlineKeyboardBuilder,
     entity_descriptor: EntityDescriptor,
     filter: str = None,
@@ -15,7 +15,7 @@ def add_filter_controls(
 ):
     caption = ", ".join(
         [
-            get_callable_str(
+            await get_callable_str(
                 entity_descriptor.fields_descriptors[field_name].caption,
                 entity_descriptor,
             )

src/qbot/bot/handlers/context.py

@@ -17,7 +17,6 @@ class CallbackCommand(StrEnum):
     DATE_PICKER_MONTH = "dm"
     DATE_PICKER_YEAR = "dy"
     TIME_PICKER = "tp"
-    # STRING_EDITOR_LOCALE = "sl"
     ENTITY_PICKER_PAGE = "ep"
     ENTITY_PICKER_TOGGLE_ITEM = "et"
     VIEW_FILTER_EDIT = "vf"

src/qbot/bot/handlers/editors/common.py

@@ -25,13 +25,23 @@ async def show_editor(message: Message | CallbackQuery, **kwargs):
     value_type = field_descriptor.type_base
 
     if field_descriptor.edit_prompt:
-        edit_prompt = get_callable_str(
-            field_descriptor.edit_prompt, field_descriptor, None, current_value
+        edit_prompt = await get_callable_str(
+            field_descriptor.edit_prompt,
+            field_descriptor,
+            callback_data
+            if callback_data.context == CommandContext.COMMAND_FORM
+            else None,
+            current_value,
         )
     else:
         if field_descriptor.caption:
-            caption_str = get_callable_str(
-                field_descriptor.caption, field_descriptor, None, current_value
+            caption_str = await get_callable_str(
+                field_descriptor.caption,
+                field_descriptor,
+                callback_data
+                if callback_data.context == CommandContext.COMMAND_FORM
+                else None,
+                current_value,
             )
         else:
             caption_str = field_descriptor.name
@@ -42,7 +52,7 @@ async def show_editor(message: Message | CallbackQuery, **kwargs):
                 )
             ).format(
                 name=caption_str,
-                value=get_value_repr(current_value, field_descriptor, user.lang),
+                value=await get_value_repr(current_value, field_descriptor, user.lang),
             )
         else:
             edit_prompt = (

src/qbot/bot/handlers/editors/date.py

@@ -56,12 +56,20 @@ async def time_picker(
 
     if not current_value:
         current_value = time(0, 0)
+        is_datetime = False
     else:
+        is_datetime = isinstance(current_value, datetime)
+        if not is_datetime:
+            current_time = datetime.combine(datetime.now(), current_value)
         remainder = current_value.minute % 5
         if remainder >= 3:
-            current_value += timedelta(minutes=(5 - remainder))
+            current_time += timedelta(minutes=(5 - remainder))
         else:
-            current_value -= timedelta(minutes=remainder)
+            current_time -= timedelta(minutes=remainder)
+        if is_datetime:
+            current_value = datetime.combine(current_value.date(), current_time.time())
+        else:
+            current_value = current_time.time()
 
     for i in range(12):
         keyboard_builder.row(

src/qbot/bot/handlers/editors/entity.py

@@ -209,7 +209,7 @@ async def render_entity_picker(
                         type_.bot_entity_descriptor, item
                     )
                     if type_.bot_entity_descriptor.item_repr
-                    else get_callable_str(
+                    else await get_callable_str(
                         type_.bot_entity_descriptor.full_name,
                         type_.bot_entity_descriptor,
                         item,
@@ -259,7 +259,7 @@ async def render_entity_picker(
         and form_list.filtering
         and form_list.filtering_fields
     ):
-        add_filter_controls(
+        await add_filter_controls(
             keyboard_builder=keyboard_builder,
             entity_descriptor=type_.bot_entity_descriptor,
             filter=entity_filter,

src/qbot/bot/handlers/editors/main_callbacks.py

@@ -1,3 +1,4 @@
+from inspect import iscoroutinefunction
 from aiogram import Router, F
 from aiogram.types import Message, CallbackQuery
 from aiogram.fsm.context import FSMContext
@@ -12,7 +13,7 @@ from ..user_handlers.main import cammand_handler
 from ....model import EntityPermission
 from ....model.user import UserBase
 from ....model.settings import Settings
-from ....model.descriptors import FieldDescriptor
+from ....model.descriptors import EntityEventContext, FieldDescriptor
 from ....model.language import LanguageBase
 from ....auth import authorize_command
 from ....utils.main import (
@@ -281,6 +282,12 @@ async def process_field_edit_callback(message: Message | CallbackQuery, **kwargs
                     commit=True,
                 )
 
+                if entity_descriptor.on_created:
+                    if iscoroutinefunction(entity_descriptor.on_created):
+                        await entity_descriptor.on_created(new_entity, EntityEventContext(db_session=db_session, app=app))
+                    else:
+                        entity_descriptor.on_created(new_entity, EntityEventContext(db_session=db_session, app=app))
+
                 form_name = (
                     callback_data.form_params.split("&")[0]
                     if callback_data.form_params
@@ -325,6 +332,13 @@ async def process_field_edit_callback(message: Message | CallbackQuery, **kwargs
                     setattr(entity, key, value)
 
                 await db_session.commit()
+                await db_session.refresh(entity)
+
+                if entity_descriptor.on_updated:
+                    if iscoroutinefunction(entity_descriptor.on_updated):
+                        await entity_descriptor.on_updated(entity, EntityEventContext(db_session=db_session, app=app))
+                    else:
+                        entity_descriptor.on_updated(entity, EntityEventContext(db_session=db_session, app=app))
 
             elif callback_data.context == CommandContext.COMMAND_FORM:
                 clear_state(state_data=state_data)

src/qbot/bot/handlers/forms/entity_form.py

@@ -62,6 +62,10 @@ async def entity_item(
 
     entity_item = await entity_type.get(session=db_session, id=callback_data.entity_id)
 
+    state: FSMContext = kwargs["state"]
+    state_data = kwargs["state_data"]
+    await state.set_data(state_data)
+
     if not entity_item:
         return await query.answer(
             text=(await Settings.get(Settings.APP_STRINGS_NOT_FOUND))
@@ -100,13 +104,13 @@ async def entity_item(
                         ]
                         field_value = getattr(entity_item, field_descriptor.field_name)
                         if btn_caption:
-                            btn_text = get_callable_str(
+                            btn_text = await get_callable_str(
                                 btn_caption, field_descriptor, entity_item, field_value
                             )
                         else:
                             if field_descriptor.type_base is bool:
                                 btn_text = f"{'【✔︎】 ' if field_value else '【  】 '}{
-                                    get_callable_str(
+                                    await get_callable_str(
                                         field_descriptor.caption,
                                         field_descriptor,
                                         entity_item,
@@ -116,18 +120,20 @@ async def entity_item(
                                     else field_name
                                 }"
                             else:
-                                btn_text = (
-                                    f"✏️ {
-                                        get_callable_str(
-                                            field_descriptor.caption,
-                                            field_descriptor,
-                                            entity_item,
-                                            field_value,
-                                        )
-                                    }"
+                                btn_text = f"{
+                                    field_descriptor.icon
+                                    if field_descriptor.icon
+                                    else '✏️'
+                                } {
+                                    await get_callable_str(
+                                        field_descriptor.caption,
+                                        field_descriptor,
+                                        entity_item,
+                                        field_value,
+                                    )
                                     if field_descriptor.caption
-                                    else f"✏️ {field_name}"
-                                )
+                                    else field_name
+                                }"
                         btn_row.append(
                             InlineKeyboardButton(
                                 text=btn_text,
@@ -144,7 +150,7 @@ async def entity_item(
                 elif isinstance(button, CommandButton):
                     btn_caption = button.caption
 
-                    btn_text = get_callable_str(
+                    btn_text = await get_callable_str(
                         btn_caption, entity_descriptor, entity_item
                     )
 
@@ -215,7 +221,7 @@ async def entity_item(
         item_text = form.item_repr(entity_descriptor, entity_item)
     else:
         entity_caption = (
-            get_callable_str(
+            await get_callable_str(
                 entity_descriptor.full_name, entity_descriptor, entity_item
             )
             if entity_descriptor.full_name
@@ -223,7 +229,7 @@ async def entity_item(
         )
 
         entity_item_repr = (
-            get_callable_str(
+            await get_callable_str(
                 entity_descriptor.item_repr, entity_descriptor, entity_item
             )
             if entity_descriptor.item_repr
@@ -234,18 +240,18 @@ async def entity_item(
 
         for field_descriptor in entity_descriptor.fields_descriptors.values():
             if field_descriptor.is_visible:
-                field_caption = get_callable_str(
+                field_caption = await get_callable_str(
                     field_descriptor.caption, field_descriptor, entity_item
                 )
                 if field_descriptor.caption_value:
-                    value = get_callable_str(
+                    value = await get_callable_str(
                         field_descriptor.caption_value,
                         field_descriptor,
                         entity_item,
                         getattr(entity_item, field_descriptor.field_name),
                     )
                 else:
-                    value = get_value_repr(
+                    value = await get_value_repr(
                         value=getattr(entity_item, field_descriptor.field_name),
                         field_descriptor=field_descriptor,
                         locale=user.lang,
@@ -261,9 +267,9 @@ async def entity_item(
             )
         )
 
-    state: FSMContext = kwargs["state"]
-    state_data = kwargs["state_data"]
-    await state.set_data(state_data)
+    # state: FSMContext = kwargs["state"]
+    # state_data = kwargs["state_data"]
+    # await state.set_data(state_data)
 
     send_message = get_send_message(query)
 

src/qbot/bot/handlers/forms/entity_form_callbacks.py

@@ -1,3 +1,4 @@
+from inspect import iscoroutinefunction
 from aiogram import Router, F
 from aiogram.fsm.context import FSMContext
 from aiogram.types import CallbackQuery, InlineKeyboardButton
@@ -5,6 +6,8 @@ from aiogram.utils.keyboard import InlineKeyboardBuilder
 from sqlmodel.ext.asyncio.session import AsyncSession
 from typing import TYPE_CHECKING
 
+from qbot.model.descriptors import EntityEventContext
+
 from ..context import ContextData, CallbackCommand
 from ....model.user import UserBase
 from ....model.settings import Settings
@@ -47,10 +50,18 @@ async def entity_delete_callback(query: CallbackQuery, **kwargs):
         )
 
     if callback_data.data == "yes":
-        await entity_descriptor.type_.remove(
+
+        entity = await entity_descriptor.type_.remove(
             session=db_session, id=int(callback_data.entity_id), commit=True
         )
 
+        if entity_descriptor.on_deleted:
+            if iscoroutinefunction(entity_descriptor.on_created):
+                await entity_descriptor.on_deleted(entity, EntityEventContext(db_session=db_session, app=app))
+            else:
+                entity_descriptor.on_deleted(entity, EntityEventContext(db_session=db_session, app=app))
+
+
         await route_callback(message=query, **kwargs)
 
     elif not callback_data.data:
@@ -61,7 +72,7 @@ async def entity_delete_callback(query: CallbackQuery, **kwargs):
         return await query.message.edit_text(
             text=(
                 await Settings.get(Settings.APP_STRINGS_CONFIRM_DELETE_P_NAME)
-            ).format(name=get_entity_item_repr(entity=entity)),
+            ).format(name=await get_entity_item_repr(entity=entity)),
             reply_markup=InlineKeyboardBuilder()
             .row(
                 InlineKeyboardButton(

src/qbot/bot/handlers/forms/entity_list.py

@@ -197,7 +197,7 @@ async def entity_list(
             caption = entity_descriptor.item_repr(entity_descriptor, item)
         elif entity_descriptor.full_name:
             caption = f"{
-                get_callable_str(
+                await get_callable_str(
                     callable_str=entity_descriptor.full_name,
                     descriptor=entity_descriptor,
                     entity=item,
@@ -228,7 +228,7 @@ async def entity_list(
         )
 
     if form_list.filtering and form_list.filtering_fields:
-        add_filter_controls(
+        await add_filter_controls(
             keyboard_builder=keyboard_builder,
             entity_descriptor=entity_descriptor,
             filter=entity_filter,
@@ -245,17 +245,17 @@ async def entity_list(
         )
 
     if form_list.caption:
-        entity_text = get_callable_str(form_list.caption, entity_descriptor)
+        entity_text = await get_callable_str(form_list.caption, entity_descriptor)
     else:
         if entity_descriptor.full_name_plural:
-            entity_text = get_callable_str(
+            entity_text = await get_callable_str(
                 entity_descriptor.full_name_plural, entity_descriptor
             )
         else:
             entity_text = entity_descriptor.name
 
         if entity_descriptor.description:
-            entity_text = f"{entity_text} {get_callable_str(entity_descriptor.description, entity_descriptor)}"
+            entity_text = f"{entity_text} {await get_callable_str(entity_descriptor.description, entity_descriptor)}"
 
     state: FSMContext = kwargs["state"]
     state_data = kwargs["state_data"]

src/qbot/bot/handlers/menu/parameters.py

@@ -54,12 +54,12 @@ async def parameters_menu(
             continue
 
         if key.caption_value:
-            caption = get_callable_str(
+            caption = await get_callable_str(
                 callable_str=key.caption_value, descriptor=key, entity=None, value=value
             )
         else:
             if key.caption:
-                caption = get_callable_str(
+                caption = await get_callable_str(
                     callable_str=key.caption, descriptor=key, entity=None, value=value
                 )
             else:
@@ -68,7 +68,7 @@ async def parameters_menu(
             if key.type_ is bool:
                 caption = f"{'【✔︎】' if value else '【  】'} {caption}"
             else:
-                caption = f"{caption}: {get_value_repr(value=value, field_descriptor=key, locale=user.lang)}"
+                caption = f"{caption}: {await get_value_repr(value=value, field_descriptor=key, locale=user.lang)}"
 
         keyboard_builder.row(
             InlineKeyboardButton(

src/qbot/bot/handlers/start.py

@@ -8,6 +8,7 @@ from sqlmodel.ext.asyncio.session import AsyncSession
 from ...main import QBotApp
 from ...model.settings import Settings
 from ...model.language import LanguageBase
+from ...model.user import UserBase
 from ...utils.main import clear_state
 
 
@@ -16,9 +17,24 @@ router = Router()
 
 
 @router.message(CommandStart())
-async def start(
-    message: Message, db_session: AsyncSession, app: QBotApp, state: FSMContext
-):
+async def start(message: Message, **kwargs):
+    app: QBotApp = kwargs["app"]
+
+    if app.start_handler:
+        await app.start_handler(
+            default_start_handler, message, **kwargs
+        )
+    else:
+        await default_start_handler(message, **kwargs)
+
+
+async def default_start_handler[UserType: UserBase](
+    message: Message,
+    db_session: AsyncSession,
+    app: QBotApp,
+    state: FSMContext,
+    **kwargs,
+) -> tuple[UserType, bool]:
     state_data = await state.get_data()
     clear_state(state_data=state_data, clear_nav=True)
 
@@ -27,6 +43,7 @@ async def start(
     user = await User.get(session=db_session, id=message.from_user.id)
 
     if not user:
+        is_new = True
         msg_text = (await Settings.get(Settings.APP_STRINGS_WELCOME_P_NAME)).format(
             name=message.from_user.full_name
         )
@@ -61,6 +78,7 @@ async def start(
             return
 
     else:
+        is_new = False
         if user.is_active:
             msg_text = (
                 await Settings.get(Settings.APP_STRINGS_GREETING_P_NAME)
@@ -71,3 +89,5 @@ async def start(
             ).format(name=user.name)
 
     await message.answer(msg_text)
+
+    return user, is_new

src/qbot/config/__init__.py

@@ -31,7 +31,7 @@ class Config(BaseSettings):
     def API_DOMAIN(self) -> str:
         if self.ENVIRONMENT == "local":
             return self.DOMAIN
-        return f"api.{self.DOMAIN}"
+        return f"{self.DOMAIN}"
 
     @computed_field
     @property
@@ -39,7 +39,7 @@ class Config(BaseSettings):
         if self.USE_NGROK:
             return self.NGROK_URL
         return (
-            f"{'http' if self.ENVIRONMENT == 'local' else 'https'}://{self.API_DOMAIN}"
+            f"https://{self.API_DOMAIN}"
         )
 
     API_PORT: int = 8000

src/qbot/main.py

@@ -1,6 +1,5 @@
 from contextlib import asynccontextmanager
-from typing import Annotated, Callable, Any
-from typing_extensions import Doc
+from typing import Callable, Any
 from aiogram import Bot, Dispatcher
 from aiogram.client.default import DefaultBotProperties
 from aiogram.types import Message, BotCommand as AiogramBotCommand
@@ -52,37 +51,23 @@ async def default_lifespan(app: "QBotApp"):
     logger.info("qbot app stopped")
 
 
-class QBotApp(FastAPI):
+class QBotApp[UserType: UserBase](FastAPI):
     """
     Main class for the QBot application
     """
 
-    def __init__[UserType: UserBase](
+    def __init__(
         self,
-        user_class: (
-            Annotated[
-                type[UserType], Doc("User class that will be used in the application")
-            ]
-            | None
-        ) = None,
+        user_class: UserType = None,
         config: Config | None = None,
-        bot_start: (
-            Annotated[
-                Callable[
-                    [
-                        Annotated[
-                            Callable[[Message, Any], None],
-                            Doc("Default handler for the start command"),
-                        ],
-                        Message,
-                        Any,
-                    ],
-                    None,
-                ],
-                Doc("Handler for the start command"),
-            ]
-            | None
-        ) = None,
+        bot_start: Callable[
+            [
+                Callable[[Message, Any], tuple[UserType, bool]],
+                Message,
+                Any,
+            ],
+            None,
+        ] = None,
         lifespan: Lifespan[AppType] | None = None,
         lifespan_bot_init: bool = True,
         allowed_updates: list[str] | None = None,

src/qbot/model/bot_enum.py

@@ -160,7 +160,7 @@ class EnumType(TypeDecorator):
     impl = AutoString
     cache_ok = True
 
-    def __init__(self, enum_type: BotEnum):
+    def __init__(self, enum_type):
         self._enum_type = enum_type
         super().__init__()
 

src/qbot/model/descriptors.py

@@ -163,6 +163,9 @@ class _BaseEntityDescriptor:
             EntityPermission.DELETE_ALL: [RoleBase.SUPER_USER],
         }
     )
+    on_created: Callable[["BotEntity", "EntityEventContext"], None] | None = None
+    on_deleted: Callable[["BotEntity", "EntityEventContext"], None] | None = None
+    on_updated: Callable[["BotEntity", "EntityEventContext"], None] | None = None
 
 
 @dataclass(kw_only=True)
@@ -197,6 +200,12 @@ class CommandCallbackContext[UT: UserBase]:
     kwargs: dict[str, Any] = field(default_factory=dict)
 
 
+@dataclass(kw_only=True)
+class EntityEventContext:
+    db_session: AsyncSession
+    app: "QBotApp"
+
+
 @dataclass(kw_only=True)
 class BotCommand:
     name: str

src/qbot/utils/main.py

@@ -1,5 +1,5 @@
 from babel.support import LazyProxy
-from inspect import signature
+from inspect import iscoroutinefunction, signature
 from aiogram.types import Message, CallbackQuery
 from aiogram.utils.i18n import I18n
 from typing import Any, TYPE_CHECKING
@@ -105,7 +105,7 @@ def clear_state(state_data: dict, clear_nav: bool = False):
             state_data["navigation_context"] = context
 
 
-def get_entity_item_repr(
+async def get_entity_item_repr(
     entity: BotEntity, item_repr: EntityItemCaptionCallable | None = None
 ) -> str:
     descr = entity.bot_entity_descriptor
@@ -115,14 +115,14 @@ def get_entity_item_repr(
         descr.item_repr(descr, entity)
         if descr.item_repr
         else f"{
-            get_callable_str(descr.full_name, descr, entity)
+            await get_callable_str(descr.full_name, descr, entity)
             if descr.full_name
             else descr.name
         }: {str(entity.id)}"
     )
 
 
-def get_value_repr(
+async def get_value_repr(
     value: Any, field_descriptor: FieldDescriptor, locale: str | None = None
 ) -> str:
     if value is None:
@@ -133,7 +133,9 @@ def get_value_repr(
         return "【✔︎】" if value else "【 】"
     elif field_descriptor.is_list:
         if issubclass(type_, BotEntity):
-            return f"[{', '.join([get_entity_item_repr(item) for item in value])}]"
+            return (
+                f"[{', '.join([await get_entity_item_repr(item) for item in value])}]"
+            )
         elif issubclass(type_, BotEnum):
             return f"[{', '.join(item.localized(locale) for item in value)}]"
         elif type_ is str:
@@ -141,7 +143,7 @@ def get_value_repr(
         else:
             return f"[{', '.join([str(item) for item in value])}]"
     elif issubclass(type_, BotEntity):
-        return get_entity_item_repr(value)
+        return await get_entity_item_repr(value)
     elif issubclass(type_, BotEnum):
         return value.localized(locale)
     elif isinstance(value, str):
@@ -156,7 +158,7 @@ def get_value_repr(
         return str(value)
 
 
-def get_callable_str(
+async def get_callable_str(
     callable_str: (
         str
         | LazyProxy
@@ -174,12 +176,20 @@ def get_callable_str(
         return callable_str.value
     elif callable(callable_str):
         args = signature(callable_str).parameters
-        if len(args) == 1:
-            return callable_str(descriptor)
-        elif len(args) == 2:
-            return callable_str(descriptor, entity)
-        elif len(args) == 3:
-            return callable_str(descriptor, entity, value)
+        if iscoroutinefunction(callable_str):
+            if len(args) == 1:
+                return await callable_str(descriptor)
+            elif len(args) == 2:
+                return await callable_str(descriptor, entity)
+            elif len(args) == 3:
+                return await callable_str(descriptor, entity, value)
+        else:
+            if len(args) == 1:
+                return callable_str(descriptor)
+            elif len(args) == 2:
+                return callable_str(descriptor, entity)
+            elif len(args) == 3:
+                return callable_str(descriptor, entity, value)
 
 
 def get_entity_descriptor(

tests/bot.py

@@ -0,0 +1,141 @@
+from qbot import (
+    QBotApp,
+    BotEntity,
+    Entity,
+    EntityForm,
+    EntityList,
+    FieldEditButton,
+    EntityField,
+    CommandCallbackContext,
+    ContextData,
+    CallbackCommand,
+)
+from qbot.model.user import UserBase
+from qbot.model.descriptors import Filter
+from qbot.model.role import RoleBase
+
+from aiogram.types import InlineKeyboardButton
+from datetime import datetime
+from sqlmodel import BigInteger, Field, Relationship
+from typing import Optional
+
+
+class User(UserBase):
+    
+    bot_entity_descriptor = Entity(
+        icon="👤",
+        full_name="User",
+        full_name_plural="Users",
+        item_repr=lambda d, e: e.name,
+        default_list=EntityList(
+            show_add_new_button=False,
+            static_filters=[Filter("roles", "contains", value=RoleBase.SUPER_USER)],
+            filtering=True,
+            filtering_fields=["name"],
+        ),
+        default_form=EntityForm(
+            show_delete_button=False,
+            show_edit_button=False,
+            form_buttons=[
+                [
+                    FieldEditButton("name"),
+                    FieldEditButton("is_active"),
+                ],
+                [
+                    FieldEditButton("lang"),
+                    FieldEditButton("roles"),
+                ],
+            ],
+            item_repr=lambda d, e: f"{e.name}\n{
+                'is active' if e.is_active else 'is not active'
+            }\nlang: {e.lang.localized()}\nroles: [{
+                ', '.join([r.localized() for r in e.roles]) if e.roles else 'none'
+            }]",
+        ),
+    )
+
+
+class Entity(BotEntity):
+    
+    bot_entity_descriptor = Entity(
+        icon="📦",
+        full_name="Entity",
+        full_name_plural="Entities",
+        item_repr=lambda d, e: e.name,
+        default_list=EntityList(
+            filtering=True,
+            filtering_fields=["name"],
+            order_by="name",
+        ),
+        default_form=EntityForm(
+            form_buttons=[
+                [
+                    FieldEditButton("name"),
+                    FieldEditButton("user"),
+                ],
+                [
+                    FieldEditButton("creation_dt"),
+                ],
+            ],
+        ),
+    )
+
+    id: int = EntityField(
+        caption="ID",
+        sm_descriptor=Field(
+            primary_key=True,
+        ),
+        is_visible=False,
+    )
+
+    name: str = EntityField(
+        caption="Name",
+    )
+
+    creation_dt: datetime = EntityField(
+        caption="Creation date",
+        dt_type="datetime",
+    )
+
+    user_id: int | None = EntityField(
+        sm_descriptor=Field(
+            sa_type=BigInteger,
+            foreign_key="user.id",
+            ondelete="RESTRICT",
+            nullable=True,
+        ),
+        is_visible=False,
+    )
+
+    user: Optional[User] = EntityField(
+        sm_descriptor=Relationship(
+            sa_relationship_kwargs={
+                "lazy": "selectin",
+                "foreign_keys": "Entity.user_id",
+            }
+        ),
+        caption="User",
+    )
+
+
+app = QBotApp(
+    user_class=User,
+)
+
+
+@app.command(
+    name="menu",
+    caption="Main menu",
+    show_in_bot_commands=True,
+    clear_navigation=True,
+)
+async def menu(context: CommandCallbackContext):
+    context.message_text = "Main menu"
+    context.keyboard_builder.row(
+        InlineKeyboardButton(
+            text="Entities",
+            callback_data=ContextData(
+                command=CallbackCommand.MENU_ENTRY_ENTITIES,
+            ).pack(),
+        )
+    )