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refactor(global-model): migrate model metadata to flexible config structure
将模型配置从多个固定字段(description, official_url, icon_url, default_supports_* 等) 统一为灵活的 config JSON 字段,提高扩展性。同时优化前端模型创建表单,支持从 models-dev 列表直接选择模型快速填充。 主要变更: - 后端:模型表迁移,支持 config JSON 存储模型能力和元信息 - 前端:GlobalModelFormDialog 支持两种创建方式(列表选择/手动填写) - API 类型更新,对齐新的数据结构
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"""refactor global_model to use config json field
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Revision ID: 1cc6942cf06f
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Revises: 180e63a9c83a
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Create Date: 2025-12-16 03:11:32.480976+00:00
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"""
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from alembic import op
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import sqlalchemy as sa
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from sqlalchemy.dialects import postgresql
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# revision identifiers, used by Alembic.
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revision = '1cc6942cf06f'
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down_revision = '180e63a9c83a'
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branch_labels = None
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depends_on = None
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def upgrade() -> None:
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"""应用迁移:升级到新版本
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1. 添加 config 列
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2. 把旧数据迁移到 config
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3. 删除旧列
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"""
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# 1. 添加 config 列(使用 JSONB 类型,支持索引和更高效的查询)
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op.add_column('global_models', sa.Column('config', postgresql.JSONB(), nullable=True))
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# 2. 迁移数据:把旧字段合并到 config JSON
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# 注意:使用 COALESCE 为布尔字段设置默认值,避免数据丢失
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# - streaming 默认 true(大多数模型支持)
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# - 其他能力默认 false
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# - jsonb_strip_nulls 只移除 null 字段,不影响 false 值
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op.execute("""
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UPDATE global_models
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SET config = jsonb_strip_nulls(jsonb_build_object(
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'streaming', COALESCE(default_supports_streaming, true),
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'vision', CASE WHEN COALESCE(default_supports_vision, false) THEN true ELSE NULL END,
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'function_calling', CASE WHEN COALESCE(default_supports_function_calling, false) THEN true ELSE NULL END,
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'extended_thinking', CASE WHEN COALESCE(default_supports_extended_thinking, false) THEN true ELSE NULL END,
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'image_generation', CASE WHEN COALESCE(default_supports_image_generation, false) THEN true ELSE NULL END,
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'description', description,
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'icon_url', icon_url,
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'official_url', official_url
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))
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""")
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# 3. 删除旧列
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op.drop_column('global_models', 'default_supports_streaming')
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op.drop_column('global_models', 'default_supports_vision')
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op.drop_column('global_models', 'default_supports_function_calling')
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op.drop_column('global_models', 'default_supports_extended_thinking')
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op.drop_column('global_models', 'default_supports_image_generation')
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op.drop_column('global_models', 'description')
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op.drop_column('global_models', 'icon_url')
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op.drop_column('global_models', 'official_url')
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def downgrade() -> None:
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"""回滚迁移:降级到旧版本"""
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# 1. 添加旧列
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op.add_column('global_models', sa.Column('icon_url', sa.VARCHAR(length=500), nullable=True))
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op.add_column('global_models', sa.Column('official_url', sa.VARCHAR(length=500), nullable=True))
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op.add_column('global_models', sa.Column('description', sa.TEXT(), nullable=True))
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op.add_column('global_models', sa.Column('default_supports_streaming', sa.BOOLEAN(), nullable=True))
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op.add_column('global_models', sa.Column('default_supports_vision', sa.BOOLEAN(), nullable=True))
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op.add_column('global_models', sa.Column('default_supports_function_calling', sa.BOOLEAN(), nullable=True))
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op.add_column('global_models', sa.Column('default_supports_extended_thinking', sa.BOOLEAN(), nullable=True))
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op.add_column('global_models', sa.Column('default_supports_image_generation', sa.BOOLEAN(), nullable=True))
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# 2. 从 config 恢复数据
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op.execute("""
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UPDATE global_models
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SET
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default_supports_streaming = COALESCE((config->>'streaming')::boolean, true),
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default_supports_vision = COALESCE((config->>'vision')::boolean, false),
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default_supports_function_calling = COALESCE((config->>'function_calling')::boolean, false),
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default_supports_extended_thinking = COALESCE((config->>'extended_thinking')::boolean, false),
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default_supports_image_generation = COALESCE((config->>'image_generation')::boolean, false),
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description = config->>'description',
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icon_url = config->>'icon_url',
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official_url = config->>'official_url'
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""")
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# 3. 删除 config 列
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op.drop_column('global_models', 'config')
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