May I ask how to convert my JSON string into a JSON variable in the template

[sunkaifei]

The fields stored in my database are JSON strings, and I want to convert this field directly into a variable on the template page, and then output each content in JSON through this variable, or is there any other way to directly output it?

[sunkaifei]

The current solution is

// 自定义过滤器函数
pub fn to_json_filter(value: &Value) -> Result<Value, Error> {
    // 处理输入的 value，假设输入是一个字符串
    let json_str = value.as_str().unwrap_or("");
    match serde_json::from_str::<Value>(json_str) {
        Ok(json_value) => {
            Ok(json_value)
        },
        Err(err) => { 
            log::error!("Error parsing JSON: {}", err);
            Ok(Value::from_safe_string("Json标签解析失败".to_string()))   
        },
    }
}

[mitsuhiko]

A custom JSON parsing filter is most likely the right solution. Another option would be to parse the data before it's passed to the template.

[sunkaifei]

Suggest adding more built-in tags for easy and quick use, without having to search for information and write again

[mitsuhiko]

I think this type of feature is too specific to warrant inclusion to the engine or contrib.