71 lines
3.3 KiB
SQL
71 lines
3.3 KiB
SQL
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-- Migration: 128_add_channel_monitor_request_templates
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-- 加请求模板表 + 给 channel_monitors 加 4 个快照字段（template_id 关联引用 + extra_headers /
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-- body_override_mode / body_override 三个真正运行时使用的快照）。
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--
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-- 设计要点：
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-- 1) 模板与监控之间是「应用即拷贝」的快照语义，运行时 checker 不再回查模板表。
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-- 模板 UPDATE 不会自动影响监控；只有用户主动「应用到关联监控」才会刷新快照。
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-- 2) ON DELETE SET NULL：模板删除不级联清理监控；监控保留快照继续工作。
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-- 3) extra_headers / body_override 都是 JSONB；body_override_mode 用 varchar（不是 enum）
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-- 便于将来加新模式无需 ALTER TYPE。
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-- 4) 同一 provider 内模板 name 唯一（允许 Anthropic + OpenAI 重名 "伪装官方客户端"）。
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CREATE TABLE IF NOT EXISTS channel_monitor_request_templates (
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id BIGSERIAL PRIMARY KEY,
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name VARCHAR(100) NOT NULL,
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provider VARCHAR(20) NOT NULL,
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description VARCHAR(500) NOT NULL DEFAULT '',
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extra_headers JSONB NOT NULL DEFAULT '{}'::jsonb,
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body_override_mode VARCHAR(10) NOT NULL DEFAULT 'off',
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body_override JSONB NULL,
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created_at TIMESTAMPTZ NOT NULL DEFAULT NOW(),
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updated_at TIMESTAMPTZ NOT NULL DEFAULT NOW(),
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CONSTRAINT channel_monitor_request_templates_provider_check
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CHECK (provider IN ('openai', 'anthropic', 'gemini')),
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CONSTRAINT channel_monitor_request_templates_body_mode_check
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CHECK (body_override_mode IN ('off', 'merge', 'replace'))
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);
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CREATE UNIQUE INDEX IF NOT EXISTS channel_monitor_request_templates_provider_name
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ON channel_monitor_request_templates (provider, name);
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-- channel_monitors 加 4 列（ADD COLUMN IF NOT EXISTS 需要 PG 9.6+，生产使用 PG 16）
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ALTER TABLE channel_monitors
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ADD COLUMN IF NOT EXISTS template_id BIGINT NULL;
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ALTER TABLE channel_monitors
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ADD COLUMN IF NOT EXISTS extra_headers JSONB NOT NULL DEFAULT '{}'::jsonb;
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ALTER TABLE channel_monitors
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ADD COLUMN IF NOT EXISTS body_override_mode VARCHAR(10) NOT NULL DEFAULT 'off';
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ALTER TABLE channel_monitors
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ADD COLUMN IF NOT EXISTS body_override JSONB NULL;
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-- 约束 + 外键（DO 块里 IF NOT EXISTS 判断，保证幂等）
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DO $$
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BEGIN
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IF NOT EXISTS (
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SELECT 1 FROM information_schema.table_constraints
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WHERE constraint_name = 'channel_monitors_body_mode_check'
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AND table_name = 'channel_monitors'
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) THEN
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ALTER TABLE channel_monitors
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ADD CONSTRAINT channel_monitors_body_mode_check
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CHECK (body_override_mode IN ('off', 'merge', 'replace'));
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END IF;
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IF NOT EXISTS (
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SELECT 1 FROM information_schema.table_constraints
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WHERE constraint_name = 'channel_monitors_template_id_fkey'
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AND table_name = 'channel_monitors'
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) THEN
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ALTER TABLE channel_monitors
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ADD CONSTRAINT channel_monitors_template_id_fkey
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FOREIGN KEY (template_id)
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REFERENCES channel_monitor_request_templates (id)
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ON DELETE SET NULL;
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END IF;
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END $$;
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CREATE INDEX IF NOT EXISTS idx_channel_monitors_template_id
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ON channel_monitors (template_id)
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WHERE template_id IS NOT NULL;
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