{
    "summary": [
        {
            "name": "world",
            "title": "世界表",
            "primary": ["id"],
            "catelog": "entity"
        }
    ],
    "fields": [
        {"name": "id", "title": "主键ID", "type": "str", "length": 32, "nullable": "no"},
        {"name": "name", "title": "世界名称", "type": "str", "length": 255, "nullable": "no"},
        {"name": "code", "title": "世界编码", "type": "str", "length": 64, "nullable": "no"},
        {"name": "description", "title": "描述", "type": "text", "nullable": "yes"},
        {"name": "world_type", "title": "世界类型", "type": "str", "length": 16, "nullable": "no", "default": "0"},
        {"name": "status", "title": "状态", "type": "str", "length": 16, "nullable": "no", "default": "0"},
        {"name": "config_json", "title": "世界配置JSON", "type": "text", "nullable": "yes"},
        {"name": "created_at", "title": "创建时间", "type": "timestamp", "nullable": "no"},
        {"name": "updated_at", "title": "更新时间", "type": "timestamp", "nullable": "yes"}
    ],
    "indexes": [
        {"name": "idx_world_code", "idxtype": "unique", "idxfields": ["code"]}
    ],
    "codes": [
        {"field": "world_type", "table": "appcodes_kv", "valuefield": "k", "textfield": "v", "cond": "parentid='world_type'"},
        {"field": "status", "table": "appcodes_kv", "valuefield": "k", "textfield": "v", "cond": "parentid='world_status'"}
    ]
}