chore(api): drop server default for app trail related tables

Drop server_default for the following tables:

- account_trial_app_records
- exporle_banners
- trial_apps

api/migrations/versions/2026_01_17_1110-f9f6d18a37f9_add_table_explore_banner_and_trial.py

@@ -20,7 +20,7 @@ depends_on = None
 def upgrade():
     # ### commands auto generated by Alembic - please adjust! ###
     op.create_table('account_trial_app_records',
-    sa.Column('id', models.types.StringUUID(), server_default=sa.text('uuid_generate_v4()'), nullable=False),
+    sa.Column('id', models.types.StringUUID(), nullable=False),
     sa.Column('account_id', models.types.StringUUID(), nullable=False),
     sa.Column('app_id', models.types.StringUUID(), nullable=False),
     sa.Column('count', sa.Integer(), nullable=False),
@@ -33,7 +33,7 @@ def upgrade():
         batch_op.create_index('account_trial_app_record_app_id_idx', ['app_id'], unique=False)
 
     op.create_table('exporle_banners',
-    sa.Column('id', models.types.StringUUID(), server_default=sa.text('uuid_generate_v4()'), nullable=False),
+    sa.Column('id', models.types.StringUUID(), nullable=False),
     sa.Column('content', sa.JSON(), nullable=False),
     sa.Column('link', sa.String(length=255), nullable=False),
     sa.Column('sort', sa.Integer(), nullable=False),
@@ -43,7 +43,7 @@ def upgrade():
     sa.PrimaryKeyConstraint('id', name='exporler_banner_pkey')
     )
     op.create_table('trial_apps',
-    sa.Column('id', models.types.StringUUID(), server_default=sa.text('uuid_generate_v4()'), nullable=False),
+    sa.Column('id', models.types.StringUUID(), nullable=False),
     sa.Column('app_id', models.types.StringUUID(), nullable=False),
     sa.Column('tenant_id', models.types.StringUUID(), nullable=False),
     sa.Column('created_at', sa.DateTime(), server_default=sa.text('CURRENT_TIMESTAMP'), nullable=False),

api/migrations/versions/2026_02_09_0950-c3df22613c99_drop_server_default_for_app_trail_.py

@@ -0,0 +1,27 @@
+"""drop server_default for app trail related tables
+
+Revision ID: c3df22613c99
+Revises: e8c3b3c46151
+Create Date: 2026-02-09 09:50:46.181969
+
+"""
+from alembic import op
+import models as models
+import sqlalchemy as sa
+
+
+# revision identifiers, used by Alembic.
+revision = 'c3df22613c99'
+down_revision = 'e8c3b3c46151'
+branch_labels = None
+depends_on = None
+
+
+def upgrade():
+    op.alter_column("account_trial_app_records", "id", server_default=None)
+    op.alter_column("exporle_banners", "id", server_default=None)
+    op.alter_column("trial_apps", "id", server_default=None)
+
+
+def downgrade():
+    pass

api/models/base.py

@@ -1,4 +1,5 @@
 from datetime import datetime
+from uuid import uuid4
 
 from sqlalchemy import DateTime, func
 from sqlalchemy.orm import DeclarativeBase, Mapped, MappedAsDataclass, mapped_column
@@ -50,3 +51,16 @@ class DefaultFieldsMixin:
 
     def __repr__(self) -> str:
         return f"<{self.__class__.__name__}(id={self.id})>"
+
+
+def gen_uuidv4_string() -> str:
+    """gen_uuidv4_string generate a UUIDv4 string.
+
+    NOTE: This function exists only for historical reasons. New models should use uuidv7 for primary key generation.
+    """
+    return str(uuid4())
+
+
+def gen_uuidv7_string() -> str:
+    """gen_uuidv4_string generate a UUIDv4 string."""
+    return str(uuidv7())

api/models/model.py

@@ -26,7 +26,7 @@ from libs.helper import generate_string  # type: ignore[import-not-found]
 from libs.uuid_utils import uuidv7
 
 from .account import Account, Tenant
-from .base import Base, TypeBase
+from .base import Base, TypeBase, gen_uuidv4_string
 from .engine import db
 from .enums import CreatorUserRole
 from .provider_ids import GenericProviderID
@@ -620,7 +620,7 @@ class TrialApp(Base):
         sa.UniqueConstraint("app_id", name="unique_trail_app_id"),
     )
 
-    id = mapped_column(StringUUID, server_default=sa.text("uuid_generate_v4()"))
+    id = mapped_column(StringUUID, default=gen_uuidv4_string)
     app_id = mapped_column(StringUUID, nullable=False)
     tenant_id = mapped_column(StringUUID, nullable=False)
     created_at = mapped_column(sa.DateTime, nullable=False, server_default=func.current_timestamp())
@@ -640,7 +640,7 @@ class AccountTrialAppRecord(Base):
         sa.Index("account_trial_app_record_app_id_idx", "app_id"),
         sa.UniqueConstraint("account_id", "app_id", name="unique_account_trial_app_record"),
     )
-    id = mapped_column(StringUUID, server_default=sa.text("uuid_generate_v4()"))
+    id = mapped_column(StringUUID, default=gen_uuidv4_string)
     account_id = mapped_column(StringUUID, nullable=False)
     app_id = mapped_column(StringUUID, nullable=False)
     count = mapped_column(sa.Integer, nullable=False, default=0)
@@ -660,7 +660,7 @@ class AccountTrialAppRecord(Base):
 class ExporleBanner(TypeBase):
     __tablename__ = "exporle_banners"
     __table_args__ = (sa.PrimaryKeyConstraint("id", name="exporler_banner_pkey"),)
-    id: Mapped[str] = mapped_column(StringUUID, server_default=sa.text("uuid_generate_v4()"), init=False)
+    id: Mapped[str] = mapped_column(StringUUID, default=gen_uuidv4_string, init=False)
     content: Mapped[dict[str, Any]] = mapped_column(sa.JSON, nullable=False)
     link: Mapped[str] = mapped_column(String(255), nullable=False)
     sort: Mapped[int] = mapped_column(sa.Integer, nullable=False)