feat: Rename file object and create performant files <-> agents association (#2588)

alembic/versions/0b496eae90de_add_file_agent_table.py

@@ -0,0 +1,54 @@
+"""Add file agent table
+
+Revision ID: 0b496eae90de
+Revises: 341068089f14
+Create Date: 2025-06-02 15:14:33.730687
+
+"""
+
+from typing import Sequence, Union
+
+import sqlalchemy as sa
+
+from alembic import op
+
+# revision identifiers, used by Alembic.
+revision: str = "0b496eae90de"
+down_revision: Union[str, None] = "341068089f14"
+branch_labels: Union[str, Sequence[str], None] = None
+depends_on: Union[str, Sequence[str], None] = None
+
+
+def upgrade() -> None:
+    # ### commands auto generated by Alembic - please adjust! ###
+    op.create_table(
+        "files_agents",
+        sa.Column("id", sa.String(), nullable=False),
+        sa.Column("file_id", sa.String(), nullable=False),
+        sa.Column("agent_id", sa.String(), nullable=False),
+        sa.Column("is_open", sa.Boolean(), nullable=False),
+        sa.Column("visible_content", sa.Text(), nullable=True),
+        sa.Column("last_accessed_at", sa.DateTime(timezone=True), server_default=sa.text("now()"), nullable=False),
+        sa.Column("created_at", sa.DateTime(timezone=True), server_default=sa.text("now()"), nullable=True),
+        sa.Column("updated_at", sa.DateTime(timezone=True), server_default=sa.text("now()"), nullable=True),
+        sa.Column("is_deleted", sa.Boolean(), server_default=sa.text("FALSE"), nullable=False),
+        sa.Column("_created_by_id", sa.String(), nullable=True),
+        sa.Column("_last_updated_by_id", sa.String(), nullable=True),
+        sa.Column("organization_id", sa.String(), nullable=False),
+        sa.ForeignKeyConstraint(["agent_id"], ["agents.id"], ondelete="CASCADE"),
+        sa.ForeignKeyConstraint(["file_id"], ["files.id"], ondelete="CASCADE"),
+        sa.ForeignKeyConstraint(
+            ["organization_id"],
+            ["organizations.id"],
+        ),
+        sa.PrimaryKeyConstraint("id", "file_id", "agent_id"),
+    )
+    op.create_index("ix_files_agents_file_id_agent_id", "files_agents", ["file_id", "agent_id"], unique=False)
+    # ### end Alembic commands ###
+
+
+def downgrade() -> None:
+    # ### commands auto generated by Alembic - please adjust! ###
+    op.drop_index("ix_files_agents_file_id_agent_id", table_name="files_agents")
+    op.drop_table("files_agents")
+    # ### end Alembic commands ###