Added messaging functions

migrations/versions/0f48943140fa_add_file_attachment_fields_to_message_.py

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+"""add file attachment fields to message model
+
+Revision ID: 0f48943140fa
+Revises: bd04430cda95
+Create Date: 2025-05-26 14:00:05.521776
+
+"""
+from alembic import op
+import sqlalchemy as sa
+
+
+# revision identifiers, used by Alembic.
+revision = '0f48943140fa'
+down_revision = 'bd04430cda95'
+branch_labels = None
+depends_on = None
+
+
+def upgrade():
+    # ### commands auto generated by Alembic - please adjust! ###
+    with op.batch_alter_table('message', schema=None) as batch_op:
+        batch_op.add_column(sa.Column('has_attachment', sa.Boolean(), nullable=True))
+        batch_op.add_column(sa.Column('attachment_name', sa.String(length=255), nullable=True))
+        batch_op.add_column(sa.Column('attachment_path', sa.String(length=512), nullable=True))
+        batch_op.add_column(sa.Column('attachment_type', sa.String(length=100), nullable=True))
+        batch_op.add_column(sa.Column('attachment_size', sa.Integer(), nullable=True))
+
+    # ### end Alembic commands ###
+
+
+def downgrade():
+    # ### commands auto generated by Alembic - please adjust! ###
+    with op.batch_alter_table('message', schema=None) as batch_op:
+        batch_op.drop_column('attachment_size')
+        batch_op.drop_column('attachment_type')
+        batch_op.drop_column('attachment_path')
+        batch_op.drop_column('attachment_name')
+        batch_op.drop_column('has_attachment')
+
+    # ### end Alembic commands ###

migrations/versions/add_conversations_tables.py

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+"""Add conversations and messages tables
+
+Revision ID: add_conversations_tables
+Revises: 2c5f57dddb78
+Create Date: 2024-03-19 10:00:00.000000
+
+"""
+from alembic import op
+import sqlalchemy as sa
+
+
+# revision identifiers, used by Alembic.
+revision = 'add_conversations_tables'
+down_revision = '2c5f57dddb78'
+branch_labels = None
+depends_on = None
+
+
+def upgrade():
+    # Create conversation table first
+    op.create_table('conversation',
+        sa.Column('id', sa.Integer(), nullable=False),
+        sa.Column('name', sa.String(length=100), nullable=False),
+        sa.Column('description', sa.Text(), nullable=True),
+        sa.Column('created_at', sa.DateTime(), nullable=True),
+        sa.Column('created_by', sa.Integer(), nullable=False),
+        sa.ForeignKeyConstraint(['created_by'], ['user.id'], ),
+        sa.PrimaryKeyConstraint('id')
+    )
+
+    # Create conversation_members table
+    op.create_table('conversation_members',
+        sa.Column('conversation_id', sa.Integer(), nullable=False),
+        sa.Column('user_id', sa.Integer(), nullable=False),
+        sa.ForeignKeyConstraint(['conversation_id'], ['conversation.id'], ),
+        sa.ForeignKeyConstraint(['user_id'], ['user.id'], ),
+        sa.PrimaryKeyConstraint('conversation_id', 'user_id')
+    )
+
+    # Create message table
+    op.create_table('message',
+        sa.Column('id', sa.Integer(), nullable=False),
+        sa.Column('content', sa.Text(), nullable=False),
+        sa.Column('created_at', sa.DateTime(), nullable=True),
+        sa.Column('conversation_id', sa.Integer(), nullable=False),
+        sa.Column('user_id', sa.Integer(), nullable=False),
+        sa.ForeignKeyConstraint(['conversation_id'], ['conversation.id'], ),
+        sa.ForeignKeyConstraint(['user_id'], ['user.id'], ),
+        sa.PrimaryKeyConstraint('id')
+    )
+
+
+def downgrade():
+    # Drop tables in reverse order
+    op.drop_table('message')
+    op.drop_table('conversation_members')
+    op.drop_table('conversation') 

migrations/versions/bd04430cda95_merge_heads.py

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+"""merge heads
+
+Revision ID: bd04430cda95
+Revises: f18735338888, add_conversations_tables
+Create Date: 2025-05-26 11:14:05.629795
+
+"""
+from alembic import op
+import sqlalchemy as sa
+
+
+# revision identifiers, used by Alembic.
+revision = 'bd04430cda95'
+down_revision = ('f18735338888', 'add_conversations_tables')
+branch_labels = None
+depends_on = None
+
+
+def upgrade():
+    pass
+
+
+def downgrade():
+    pass

migrations/versions/e7e4ff171f7a_add_message_attachments_table_and_.py

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+"""add message attachments table and update message model
+
+Revision ID: e7e4ff171f7a
+Revises: 0f48943140fa
+Create Date: 2025-05-26 15:00:18.557702
+
+"""
+from alembic import op
+import sqlalchemy as sa
+
+
+# revision identifiers, used by Alembic.
+revision = 'e7e4ff171f7a'
+down_revision = '0f48943140fa'
+branch_labels = None
+depends_on = None
+
+
+def upgrade():
+    # ### commands auto generated by Alembic - please adjust! ###
+    op.create_table('message_attachment',
+    sa.Column('id', sa.Integer(), nullable=False),
+    sa.Column('message_id', sa.Integer(), nullable=False),
+    sa.Column('name', sa.String(length=255), nullable=False),
+    sa.Column('path', sa.String(length=512), nullable=False),
+    sa.Column('type', sa.String(length=100), nullable=True),
+    sa.Column('size', sa.Integer(), nullable=True),
+    sa.Column('created_at', sa.DateTime(), nullable=True),
+    sa.ForeignKeyConstraint(['message_id'], ['message.id'], ),
+    sa.PrimaryKeyConstraint('id')
+    )
+    with op.batch_alter_table('message', schema=None) as batch_op:
+        batch_op.drop_column('attachment_path')
+        batch_op.drop_column('attachment_type')
+        batch_op.drop_column('has_attachment')
+        batch_op.drop_column('attachment_size')
+        batch_op.drop_column('attachment_name')
+
+    # ### end Alembic commands ###
+
+
+def downgrade():
+    # ### commands auto generated by Alembic - please adjust! ###
+    with op.batch_alter_table('message', schema=None) as batch_op:
+        batch_op.add_column(sa.Column('attachment_name', sa.VARCHAR(length=255), autoincrement=False, nullable=True))
+        batch_op.add_column(sa.Column('attachment_size', sa.INTEGER(), autoincrement=False, nullable=True))
+        batch_op.add_column(sa.Column('has_attachment', sa.BOOLEAN(), autoincrement=False, nullable=True))
+        batch_op.add_column(sa.Column('attachment_type', sa.VARCHAR(length=100), autoincrement=False, nullable=True))
+        batch_op.add_column(sa.Column('attachment_path', sa.VARCHAR(length=512), autoincrement=False, nullable=True))
+
+    op.drop_table('message_attachment')
+    # ### end Alembic commands ###