47 lines
2.1 KiB
Python
47 lines
2.1 KiB
Python
"""
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Copyright 2024-2026 ChatterMate
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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"""
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from sqlalchemy import Column, Integer, String, BigInteger, ForeignKey, TIMESTAMP, func, UUID
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from sqlalchemy.orm import relationship
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from app.database import Base
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class FileAttachment(Base):
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__tablename__ = "file_attachments"
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id = Column(Integer, primary_key=True, index=True)
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file_url = Column(String, nullable=False) # AWS S3 URL or local path
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filename = Column(String, nullable=False) # Original filename
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content_type = Column(String, nullable=False) # MIME type
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file_size = Column(BigInteger, nullable=False) # File size in bytes
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# Links to chat history message
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chat_history_id = Column(Integer, ForeignKey("chat_history.id", ondelete="CASCADE"), nullable=True)
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# Additional metadata
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organization_id = Column(UUID(as_uuid=True), ForeignKey("organizations.id", ondelete="CASCADE"), nullable=False)
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uploaded_by_user_id = Column(UUID(as_uuid=True), ForeignKey("users.id", ondelete="SET NULL"), nullable=True)
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uploaded_by_customer_id = Column(UUID(as_uuid=True), ForeignKey("customers.id", ondelete="SET NULL"), nullable=True)
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created_at = Column(TIMESTAMP(timezone=True), server_default=func.now())
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updated_at = Column(TIMESTAMP(timezone=True), server_default=func.now(), onupdate=func.now())
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# Relationships
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chat_history = relationship("ChatHistory", backref="attachments")
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organization = relationship("Organization")
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uploaded_by_user = relationship("User", foreign_keys=[uploaded_by_user_id])
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uploaded_by_customer = relationship("Customer", foreign_keys=[uploaded_by_customer_id])
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