init

serve/migrations/add_vocabulary_extended_fields.sql

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+-- 添加词汇扩展字段
+-- 为ai_vocabulary表添加同义词、反义词、派生词等字段
+
+USE ai_english_learning;
+
+-- 添加扩展字段到词汇表
+ALTER TABLE ai_vocabulary 
+ADD COLUMN IF NOT EXISTS synonyms JSON COMMENT '同义词列表 ["happy", "joyful"]',
+ADD COLUMN IF NOT EXISTS antonyms JSON COMMENT '反义词列表 ["sad", "unhappy"]',
+ADD COLUMN IF NOT EXISTS derivatives JSON COMMENT '派生词列表 [{"word": "happiness", "meaning": "幸福"}]',
+ADD COLUMN IF NOT EXISTS collocations JSON COMMENT '词组搭配 [{"phrase": "look forward to", "meaning": "期待"}]',
+ADD COLUMN IF NOT EXISTS word_root TEXT COMMENT '词根信息';
+
+-- 添加索引
+ALTER TABLE ai_vocabulary
+ADD INDEX idx_phonetic_us (phonetic_us(50)),
+ADD INDEX idx_phonetic_uk (phonetic_uk(50));
+
+-- 更新现有数据的默认值
+UPDATE ai_vocabulary 
+SET 
+    synonyms = JSON_ARRAY() WHERE synonyms IS NULL,
+    antonyms = JSON_ARRAY() WHERE antonyms IS NULL,
+    derivatives = JSON_ARRAY() WHERE derivatives IS NULL,
+    collocations = JSON_ARRAY() WHERE collocations IS NULL;