init
This commit is contained in:
Alexander Kalinovsky
183
model/settings.py
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183
model/settings.py
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from datetime import datetime
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from sqlmodel import SQLModel, Field, select
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from typing import Any, get_origin
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from ..db import async_session
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from .role import RoleBase
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from .descriptors import EntityFieldDescriptor, Setting
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from ..utils import deserialize, serialize
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class DbSettings(SQLModel, table = True):
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__tablename__ = "settings"
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name: str = Field(primary_key = True)
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value: str
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class SettingsMetaclass(type):
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def __new__(cls, class_name, base_classes, attributes):
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settings_descriptors = {}
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if base_classes:
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settings_descriptors = base_classes[0].__dict__.get("_settings_descriptors", {})
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for annotation in attributes['__annotations__']:
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if annotation in ["_settings_descriptors", "_cache", "_cached_settings"]:
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continue
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attr_value = attributes.get(annotation)
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name = annotation
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if isinstance(attr_value, Setting):
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descriptor_kwargs = attr_value.__dict__.copy()
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name = descriptor_kwargs.pop("name") or annotation
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attributes[annotation] = EntityFieldDescriptor(
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name = name,
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field_name = annotation,
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type_ = attributes['__annotations__'][annotation],
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**descriptor_kwargs)
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else:
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attributes[annotation] = EntityFieldDescriptor(
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name = annotation,
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field_name = annotation,
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type_ = attributes['__annotations__'][annotation],
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default = attr_value)
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settings_descriptors[name] = attributes[annotation]
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attributes["__annotations__"] = {}
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attributes["_settings_descriptors"] = settings_descriptors
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return super().__new__(cls, class_name, base_classes, attributes)
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class Settings(metaclass = SettingsMetaclass):
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_cache: dict[str, Any] = dict[str, Any]()
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_settings_descriptors: dict[str, EntityFieldDescriptor] = {}
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PAGE_SIZE: int = Setting(default = 10, )
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SECURITY_SETTINGS_ROLES: list[RoleBase] = [RoleBase.SUPER_USER]
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APP_STRINGS_WELCOME_P_NAME: str = Setting(name = "AS_WELCOME", default = "Welcome, {name}", is_visible = False)
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APP_STRINGS_GREETING_P_NAME: str = Setting(name = "AS_GREETING", default = "Hello, {name}", is_visible = False)
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APP_STRINGS_INTERNAL_ERROR_P_ERROR: str = Setting(name = "AS_INTERNAL_ERROR", default = "Internal error\n{error}", is_visible = False)
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APP_STRINGS_USER_BLOCKED_P_NAME: str = Setting(name = "AS_USER_BLOCKED", default = "User {name} is blocked", is_visible = False)
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APP_STRINGS_FORBIDDEN: str = Setting(name = "AS_FORBIDDEN", default = "Forbidden", is_visible = False)
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APP_STRINGS_NOT_FOUND: str = Setting(name = "AS_NOT_FOUND", default = "Object not found", is_visible = False)
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APP_STRINGS_MAIN_NENU: str = Setting(name = "AS_MAIN_MENU", default = "Main menu", is_visible = False)
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APP_STRINGS_REFERENCES: str = Setting(name = "AS_REFERENCES", default = "References", is_visible = False)
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APP_STRINGS_REFERENCES_BTN: str = Setting(name = "AS_REFERENCES_BTN", default = "📚 References", is_visible = False)
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APP_STRINGS_SETTINGS: str = Setting(name = "AS_SETTINGS", default = "Settings", is_visible = False)
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APP_STRINGS_SETTINGS_BTN: str = Setting(name = "AS_SETTINGS_BTN", default = "⚙️ Settings", is_visible = False)
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APP_STRINGS_PARAMETERS: str = Setting(name = "AS_PARAMETERS", default = "Parameters", is_visible = False)
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APP_STRINGS_PARAMETERS_BTN: str = Setting(name = "AS_PARAMETERS_BTN", default = "🎛️ Parameters", is_visible = False)
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APP_STRINGS_LANGUAGE: str = Setting(name = "AS_LANGUAGE", default = "Language", is_visible = False)
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APP_STRINGS_LANGUAGE_BTN: str = Setting(name = "AS_LANGUAGE_BTN", default = "🗣️ Language", is_visible = False)
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APP_STRINGS_BACK_BTN: str = Setting(name = "AS_BACK_BTN", default = "⬅️ Back", is_visible = False)
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APP_STRINGS_DELETE_BTN: str = Setting(name = "AS_DELETE_BTN", default = "🗑️ Delete", is_visible = False)
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APP_STRINGS_CONFIRM_DELETE_P_NAME: str = Setting(
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name = "AS_CONFIRM_DEL",
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default = "Are you sure you want to delete \"{name}\"?",
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is_visible = False)
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APP_STRINGS_EDIT_BTN: str = Setting(name = "AS_EDIT_BTN", default = "✏️ Edit", is_visible = False)
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APP_STRINGS_ADD_BTN: str = Setting(name = "AS_ADD_BTN", default = "➕ Add", is_visible = False)
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APP_STRINGS_YES_BTN: str = Setting(name = "AS_YES_BTN", default = "✅ Yes", is_visible = False)
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APP_STRINGS_NO_BTN: str = Setting(name = "AS_NO_BTN", default = "❌ No", is_visible = False)
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APP_STRINGS_CANCEL_BTN: str = Setting(name = "AS_CANCEL_BTN", default = "❌ Cancel", is_visible = False)
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APP_STRINGS_DONE_BTN: str = Setting(name = "AS_DONE_BTN", default = "✅ Done", is_visible = False)
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APP_STRINGS_SKIP_BTN: str = Setting(name = "AS_SKIP_BTN", default = "⏩️ Skip", is_visible = False)
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APP_STRINGS_FIELD_EDIT_PROMPT_TEMPLATE_P_NAME_VALUE: str = Setting(
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name = "AS_FIELDEDIT_PROMPT",
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default = "Enter new value for \"{name}\" (current value: {value})",
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is_visible = False)
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APP_STRINGS_FIELD_CREATE_PROMPT_TEMPLATE_P_NAME: str = Setting(
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name = "AS_FIELDCREATE_PROMPT",
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default = "Enter new value for \"{name}\"",
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is_visible = False)
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APP_STRINGS_STRING_EDITOR_LOCALE_TEMPLATE_P_NAME: str = Setting(
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name = "AS_STREDIT_LOC_TEMPLATE",
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default = "string for \"{name}\"",
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is_visible = False)
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APP_STRINGS_INVALID_INPUT: str = Setting(name = "AS_INVALID_INPUT", default = "Invalid input", is_visible = False)
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@classmethod
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async def get[T](cls, param: T) -> T:
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name = param.field_name
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if param.name not in cls._cache.keys():
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cls._cache[name] = await cls.load_param(param)
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return cls._cache[name]
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@classmethod
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async def load_param(cls, param: EntityFieldDescriptor) -> Any:
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async with async_session() as session:
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db_setting = (await session.exec(
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select(DbSettings)
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.where(DbSettings.name == param.field_name))).first()
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if db_setting:
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return await deserialize(session = session,
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type_ = param.type_,
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value = db_setting.value)
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return (param.default if param.default else
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[] if (get_origin(param.type_) is list or param.type_ == list) else
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datetime(2000, 1, 1) if param.type_ == datetime else
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param.type_())
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@classmethod
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async def load_params(cls):
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async with async_session() as session:
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db_settings = (await session.exec(select(DbSettings))).all()
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for db_setting in db_settings:
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if db_setting.name in cls.__dict__:
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setting = cls.__dict__[db_setting.name]
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cls._cache[db_setting.name] = await deserialize(session = session,
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type_ = setting.type_,
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value = db_setting.value,
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default = setting.default)
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cls._loaded = True
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@classmethod
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async def set_param(cls, param: str | EntityFieldDescriptor, value) -> None:
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if isinstance(param, str):
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param = cls._settings_descriptors[param]
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ser_value = serialize(value, param)
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async with async_session() as session:
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db_setting = (await session.exec(
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select(DbSettings)
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.where(DbSettings.name == param.field_name))).first()
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if db_setting is None:
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db_setting = DbSettings(name = param.field_name)
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db_setting.value = str(ser_value)
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session.add(db_setting)
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await session.commit()
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cls._cache[param.field_name] = value
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@classmethod
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def list_params(cls) -> dict[str, EntityFieldDescriptor]:
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return cls._settings_descriptors
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@classmethod
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async def get_params(cls) -> dict[EntityFieldDescriptor, Any]:
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params = cls.list_params()
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return {param: await cls.get(param) for _, param in params.items()}
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