382 lines
16 KiB
PL/PgSQL
382 lines
16 KiB
PL/PgSQL
-- ===================================================================
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-- ak_topics 多语言支持扩展
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-- ===================================================================
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-- 专题多语言翻译表
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CREATE TABLE IF NOT EXISTS public.ak_topic_translations (
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id uuid PRIMARY KEY DEFAULT gen_random_uuid(),
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topic_id uuid NOT NULL REFERENCES public.ak_topics(id) ON DELETE CASCADE,
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language_code VARCHAR(10) NOT NULL, -- 如 'zh-CN', 'en', 'ja', 'zh-TW'
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title VARCHAR(255) NOT NULL,
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description TEXT,
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meta_description TEXT,
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meta_keywords TEXT[],
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translation_method VARCHAR(32) DEFAULT 'ai', -- 'ai', 'human', 'hybrid'
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ai_provider VARCHAR(32), -- 'openai', 'google', 'baidu', 'custom'
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quality_score FLOAT,
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ai_confidence FLOAT,
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human_verified BOOLEAN DEFAULT false,
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human_verified_by uuid, -- 参考 ak_users 表
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human_verified_at TIMESTAMP WITH TIME ZONE,
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tokens_used INTEGER,
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processing_time_ms INTEGER,
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created_at TIMESTAMP WITH TIME ZONE DEFAULT now(),
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updated_at TIMESTAMP WITH TIME ZONE DEFAULT now(),
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UNIQUE(topic_id, language_code)
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);
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-- 专题翻译索引
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CREATE INDEX IF NOT EXISTS idx_topic_translations_topic ON public.ak_topic_translations(topic_id);
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CREATE INDEX IF NOT EXISTS idx_topic_translations_language ON public.ak_topic_translations(language_code);
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CREATE INDEX IF NOT EXISTS idx_topic_translations_method ON public.ak_topic_translations(translation_method);
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CREATE INDEX IF NOT EXISTS idx_topic_translations_quality ON public.ak_topic_translations(quality_score DESC);
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CREATE INDEX IF NOT EXISTS idx_topic_translations_verified ON public.ak_topic_translations(human_verified);
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COMMENT ON TABLE public.ak_topic_translations IS '专题多语言翻译表';
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COMMENT ON COLUMN public.ak_topic_translations.language_code IS '语言代码，如zh-CN、en、ja、zh-TW';
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COMMENT ON COLUMN public.ak_topic_translations.translation_method IS '翻译方式：ai=AI翻译，human=人工翻译，hybrid=混合翻译';
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COMMENT ON COLUMN public.ak_topic_translations.quality_score IS '翻译质量评分(0-1)';
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-- ===================================================================
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-- ak_topic_contents 多语言支持扩展
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-- ===================================================================
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-- 专题内容关联多语言翻译表
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CREATE TABLE IF NOT EXISTS public.ak_topic_content_translations (
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id uuid PRIMARY KEY DEFAULT gen_random_uuid(),
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topic_content_id uuid NOT NULL REFERENCES public.ak_topic_contents(id) ON DELETE CASCADE,
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language_code VARCHAR(10) NOT NULL,
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editor_note TEXT, -- 多语言编辑说明
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translation_method VARCHAR(32) DEFAULT 'ai',
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ai_provider VARCHAR(32),
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quality_score FLOAT,
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human_verified BOOLEAN DEFAULT false,
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human_verified_by uuid,
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human_verified_at TIMESTAMP WITH TIME ZONE,
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created_at TIMESTAMP WITH TIME ZONE DEFAULT now(),
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updated_at TIMESTAMP WITH TIME ZONE DEFAULT now(),
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UNIQUE(topic_content_id, language_code)
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);
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-- 专题内容翻译索引
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CREATE INDEX IF NOT EXISTS idx_topic_content_translations_content ON public.ak_topic_content_translations(topic_content_id);
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CREATE INDEX IF NOT EXISTS idx_topic_content_translations_language ON public.ak_topic_content_translations(language_code);
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CREATE INDEX IF NOT EXISTS idx_topic_content_translations_quality ON public.ak_topic_content_translations(quality_score DESC);
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COMMENT ON TABLE public.ak_topic_content_translations IS '专题内容关联多语言翻译表';
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-- ===================================================================
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-- 多语言专题视图和函数
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-- ===================================================================
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-- 多语言专题视图
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CREATE OR REPLACE VIEW public.vw_multilingual_topics AS
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SELECT
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t.id,
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t.title as original_title,
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t.description as original_description,
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t.topic_type,
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t.status,
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t.cover_image_url,
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t.creator_id,
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t.content_count,
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t.view_count,
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t.like_count,
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t.share_count,
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t.comment_count,
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t.subscriber_count,
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t.priority_level,
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t.tags,
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t.created_at,
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t.updated_at,
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-- 聚合翻译信息
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COALESCE(
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json_agg(
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json_build_object(
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'language_code', tt.language_code,
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'title', tt.title,
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'description', tt.description,
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'meta_description', tt.meta_description,
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'meta_keywords', tt.meta_keywords,
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'quality_score', tt.quality_score,
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'translation_method', tt.translation_method,
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'human_verified', tt.human_verified
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)
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) FILTER (WHERE tt.id IS NOT NULL),
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'[]'::json
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) as translations
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FROM public.ak_topics t
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LEFT JOIN public.ak_topic_translations tt ON t.id = tt.topic_id
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WHERE t.status IN ('active', 'featured')
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GROUP BY t.id, t.title, t.description, t.topic_type, t.status, t.cover_image_url,
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t.creator_id, t.content_count, t.view_count, t.like_count, t.share_count,
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t.comment_count, t.subscriber_count, t.priority_level, t.tags,
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t.created_at, t.updated_at;
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COMMENT ON VIEW public.vw_multilingual_topics IS '多语言专题聚合视图';
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-- 获取指定语言的专题列表函数
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CREATE OR REPLACE FUNCTION public.get_topics_by_language(
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p_language_code VARCHAR(10) DEFAULT 'zh-CN',
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p_topic_type VARCHAR(32) DEFAULT NULL,
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p_status VARCHAR(32) DEFAULT 'active',
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p_limit INTEGER DEFAULT 20,
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p_offset INTEGER DEFAULT 0
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)
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RETURNS TABLE (
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topic_id uuid,
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title VARCHAR(255),
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description TEXT,
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topic_type VARCHAR(32),
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status VARCHAR(32),
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cover_image_url TEXT,
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content_count INTEGER,
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view_count INTEGER,
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like_count INTEGER,
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share_count INTEGER,
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comment_count INTEGER,
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subscriber_count INTEGER,
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priority_level INTEGER,
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tags TEXT[],
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translation_quality FLOAT,
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created_at TIMESTAMP WITH TIME ZONE,
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updated_at TIMESTAMP WITH TIME ZONE
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) AS $$
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BEGIN
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RETURN QUERY
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SELECT
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t.id,
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COALESCE(tt.title, t.title) as title,
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COALESCE(tt.description, t.description) as description,
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t.topic_type,
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t.status,
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t.cover_image_url,
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t.content_count,
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t.view_count,
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t.like_count,
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t.share_count,
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t.comment_count,
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t.subscriber_count,
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t.priority_level,
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t.tags,
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tt.quality_score as translation_quality,
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t.created_at,
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t.updated_at
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FROM public.ak_topics t
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LEFT JOIN public.ak_topic_translations tt ON t.id = tt.topic_id
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AND tt.language_code = p_language_code
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WHERE (p_topic_type IS NULL OR t.topic_type = p_topic_type)
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AND (p_status IS NULL OR t.status = p_status)
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ORDER BY t.priority_level DESC, t.updated_at DESC
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LIMIT p_limit OFFSET p_offset;
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END;
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$$ LANGUAGE plpgsql;
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COMMENT ON FUNCTION public.get_topics_by_language IS '获取指定语言的专题列表';
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-- 获取专题详情（多语言）函数
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CREATE OR REPLACE FUNCTION public.get_topic_detail(
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p_topic_id uuid,
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p_language_code VARCHAR(10) DEFAULT 'zh-CN'
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)
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RETURNS TABLE (
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topic_id uuid,
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title VARCHAR(255),
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description TEXT,
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meta_description TEXT,
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meta_keywords TEXT[],
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topic_type VARCHAR(32),
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status VARCHAR(32),
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cover_image_url TEXT,
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creator_id uuid,
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editor_id uuid,
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content_count INTEGER,
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view_count INTEGER,
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like_count INTEGER,
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share_count INTEGER,
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comment_count INTEGER,
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subscriber_count INTEGER,
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priority_level INTEGER,
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tags TEXT[],
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seo_slug VARCHAR(255),
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translation_quality FLOAT,
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is_translated BOOLEAN,
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created_at TIMESTAMP WITH TIME ZONE,
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updated_at TIMESTAMP WITH TIME ZONE,
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contents JSON
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) AS $$
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BEGIN
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RETURN QUERY
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SELECT
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t.id,
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COALESCE(tt.title, t.title) as title,
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COALESCE(tt.description, t.description) as description,
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COALESCE(tt.meta_description, t.meta_description) as meta_description,
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COALESCE(tt.meta_keywords, t.meta_keywords) as meta_keywords,
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t.topic_type,
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t.status,
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t.cover_image_url,
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t.creator_id,
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t.editor_id,
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t.content_count,
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t.view_count,
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t.like_count,
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t.share_count,
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t.comment_count,
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t.subscriber_count,
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t.priority_level,
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t.tags,
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t.seo_slug,
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tt.quality_score as translation_quality,
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(tt.id IS NOT NULL) as is_translated,
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t.created_at,
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t.updated_at,
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-- 聚合该专题下的内容
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COALESCE(
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(SELECT json_agg(
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json_build_object(
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'content_id', tc.content_id,
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'display_order', tc.display_order,
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'editor_note', COALESCE(tct.editor_note, tc.editor_note),
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'is_featured', tc.is_featured,
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'added_at', tc.added_at
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)
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ORDER BY tc.display_order, tc.added_at
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)
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FROM public.ak_topic_contents tc
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LEFT JOIN public.ak_topic_content_translations tct
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ON tc.id = tct.topic_content_id AND tct.language_code = p_language_code
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WHERE tc.topic_id = t.id),
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'[]'::json
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) as contents
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FROM public.ak_topics t
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LEFT JOIN public.ak_topic_translations tt ON t.id = tt.topic_id
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AND tt.language_code = p_language_code
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WHERE t.id = p_topic_id;
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END;
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$$ LANGUAGE plpgsql;
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COMMENT ON FUNCTION public.get_topic_detail IS '获取专题详情（多语言支持）';
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-- ===================================================================
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-- 初始化示例数据
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-- ===================================================================
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-- 创建示例专题（如果不存在）
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INSERT INTO public.ak_topics (title, description, topic_type, status, priority_level, tags)
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VALUES
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('人工智能发展趋势', '探讨2024年人工智能技术的最新发展趋势和应用前景', 'analysis', 'active', 5, ARRAY['AI', '人工智能', '技术趋势']),
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('科技创新专题', '汇聚最新的科技创新成果和突破性技术', 'series', 'featured', 8, ARRAY['科技', '创新', '技术']),
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('数字化转型指南', '企业数字化转型的完整指导和最佳实践', 'guide', 'active', 6, ARRAY['数字化', '转型', '企业'])
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ON CONFLICT DO NOTHING;
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-- 为示例专题添加多语言翻译
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INSERT INTO public.ak_topic_translations (topic_id, language_code, title, description, translation_method, quality_score)
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SELECT
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t.id,
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'en',
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CASE
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WHEN t.title = '人工智能发展趋势' THEN 'AI Development Trends'
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WHEN t.title = '科技创新专题' THEN 'Technology Innovation Topics'
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WHEN t.title = '数字化转型指南' THEN 'Digital Transformation Guide'
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ELSE t.title
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END,
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CASE
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WHEN t.description LIKE '%人工智能%' THEN 'Exploring the latest AI technology trends and application prospects in 2024'
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WHEN t.description LIKE '%科技创新%' THEN 'Gathering the latest technological innovations and breakthrough technologies'
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WHEN t.description LIKE '%数字化转型%' THEN 'Complete guidance and best practices for enterprise digital transformation'
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ELSE t.description
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END,
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'ai',
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0.85
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FROM public.ak_topics t
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WHERE t.title IN ('人工智能发展趋势', '科技创新专题', '数字化转型指南')
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ON CONFLICT (topic_id, language_code) DO NOTHING;
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-- 添加日文翻译
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INSERT INTO public.ak_topic_translations (topic_id, language_code, title, description, translation_method, quality_score)
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SELECT
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t.id,
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'ja',
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CASE
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WHEN t.title = '人工智能发展趋势' THEN 'AI発展トレンド'
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WHEN t.title = '科技创新专题' THEN 'テクノロジーイノベーション特集'
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WHEN t.title = '数字化转型指南' THEN 'デジタル変革ガイド'
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ELSE t.title
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END,
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CASE
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WHEN t.description LIKE '%人工智能%' THEN '2024年のAI技術の最新発展トレンドと応用展望を探る'
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WHEN t.description LIKE '%科技创新%' THEN '最新の技術革新成果と画期的技術を集約'
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WHEN t.description LIKE '%数字化转型%' THEN '企業のデジタル変革の完全ガイドとベストプラクティス'
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ELSE t.description
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END,
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'ai',
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0.80
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FROM public.ak_topics t
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WHERE t.title IN ('人工智能发展趋势', '科技创新专题', '数字化转型指南')
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ON CONFLICT (topic_id, language_code) DO NOTHING;
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-- ===================================================================
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-- 更新现有ak_languages表以支持专题翻译
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-- ===================================================================
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-- 为专题翻译启用RLS策略
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ALTER TABLE public.ak_topic_translations ENABLE ROW LEVEL SECURITY;
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ALTER TABLE public.ak_topic_content_translations ENABLE ROW LEVEL SECURITY;
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-- 专题翻译访问策略（所有人可读）
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DROP POLICY IF EXISTS "topic_translations_select_policy" ON public.ak_topic_translations;
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CREATE POLICY "topic_translations_select_policy" ON public.ak_topic_translations
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FOR SELECT USING (true);
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-- 专题翻译插入策略（认证用户可插入）
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DROP POLICY IF EXISTS "topic_translations_insert_policy" ON public.ak_topic_translations;
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CREATE POLICY "topic_translations_insert_policy" ON public.ak_topic_translations
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FOR INSERT WITH CHECK (auth.uid() IS NOT NULL);
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-- 专题内容翻译访问策略
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DROP POLICY IF EXISTS "topic_content_translations_select_policy" ON public.ak_topic_content_translations;
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CREATE POLICY "topic_content_translations_select_policy" ON public.ak_topic_content_translations
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FOR SELECT USING (true);
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DROP POLICY IF EXISTS "topic_content_translations_insert_policy" ON public.ak_topic_content_translations;
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CREATE POLICY "topic_content_translations_insert_policy" ON public.ak_topic_content_translations
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FOR INSERT WITH CHECK (auth.uid() IS NOT NULL);
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-- ===================================================================
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-- 完成信息
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-- ===================================================================
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DO $$
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BEGIN
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RAISE NOTICE '===================================================================';
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RAISE NOTICE 'ak_topics 多语言支持扩展完成！';
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RAISE NOTICE '===================================================================';
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RAISE NOTICE '新增表：';
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RAISE NOTICE '- ak_topic_translations: 专题多语言翻译表';
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RAISE NOTICE '- ak_topic_content_translations: 专题内容关联多语言翻译表';
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RAISE NOTICE '===================================================================';
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RAISE NOTICE '新增函数：';
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RAISE NOTICE '- get_topics_by_language(): 获取指定语言的专题列表';
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RAISE NOTICE '- get_topic_detail(): 获取专题详情（多语言支持）';
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RAISE NOTICE '===================================================================';
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RAISE NOTICE '新增视图：';
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RAISE NOTICE '- vw_multilingual_topics: 多语言专题聚合视图';
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RAISE NOTICE '===================================================================';
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RAISE NOTICE '特性支持：';
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RAISE NOTICE '- 专题标题和描述多语言翻译';
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RAISE NOTICE '- 专题内容编辑说明多语言支持';
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RAISE NOTICE '- AI和人工翻译质量评分';
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RAISE NOTICE '- SEO元数据多语言支持';
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RAISE NOTICE '- 翻译质量追踪和审核机制';
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RAISE NOTICE '- 与现有ak_content_translations架构一致';
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RAISE NOTICE '===================================================================';
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END
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$$;
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ALTER TABLE public.ak_contents
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ADD COLUMN cid BIGSERIAL UNIQUE;
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-- 或更推荐（PostgreSQL 10+，标准写法）：
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-- ALTER TABLE public.ak_contents
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-- ADD COLUMN cid BIGINT GENERATED ALWAYS AS IDENTITY |