Phase 1 - Foundation: - Add app/modules/contracts/ with Protocol definitions for cross-module communication (ServiceProtocol, ContentServiceProtocol, MediaServiceProtocol) - Enhance app/modules/base.py ModuleDefinition with self-contained module support (is_self_contained, services_path, models_path, etc.) - Update app/templates_config.py with multi-directory template loading using Jinja2 ChoiceLoader for module templates Phase 2 - CMS Pilot Module: - Migrate CMS service to app/modules/cms/services/content_page_service.py - Create app/modules/cms/exceptions.py with CMS-specific exceptions - Configure app/modules/cms/models/ to re-export ContentPage from canonical location (models.database) to avoid circular imports - Update cms_module definition with is_self_contained=True and paths - Add backwards compatibility shims with deprecation warnings: - app/services/content_page_service.py -> app.modules.cms.services - app/exceptions/content_page.py -> app.modules.cms.exceptions Note: SQLAlchemy models remain in models/database/ as the canonical location to avoid circular imports at startup time. Module model packages re-export from the canonical location. Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
33 lines
1011 B
Python
33 lines
1011 B
Python
# app/modules/contracts/__init__.py
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"""
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Cross-module contracts using Protocol pattern.
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This module defines type-safe interfaces for cross-module communication.
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Modules depend on protocols rather than concrete implementations, enabling:
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- Loose coupling between modules
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- Testability through mock implementations
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- Clear dependency boundaries
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Usage:
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from app.modules.contracts.cms import ContentServiceProtocol
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class OrderService:
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def __init__(self, content: ContentServiceProtocol | None = None):
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self._content = content
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@property
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def content(self) -> ContentServiceProtocol:
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if self._content is None:
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from app.modules.cms.services import content_page_service
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self._content = content_page_service
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return self._content
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"""
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from app.modules.contracts.base import ServiceProtocol
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from app.modules.contracts.cms import ContentServiceProtocol
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__all__ = [
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"ServiceProtocol",
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"ContentServiceProtocol",
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]
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