fn dump_model()

in below/dump/src/iface.rs [42:120]
76 lines of code
2 McCabe index (conditional complexity)

    fn dump_model(
        &self,
        ctx: &CommonFieldContext,
        model: &model::Model,
        output: &mut dyn Write,
        round: &mut usize,
        comma_flag: bool,
    ) -> Result<IterExecResult> {
        let json = self.opts.output_format == Some(OutputFormat::Json);
        let mut json_output = json!([]);

        model
            .network
            .interfaces
            .iter()
            .filter(
                |(_, model)| match (self.select.as_ref(), self.opts.filter.as_ref()) {
                    (Some(field_id), Some(filter))
                        if !filter.is_match(
                            &model
                                .query(&field_id)
                                .map_or("?".to_owned(), |v| v.to_string()),
                        ) =>
                    {
                        false
                    }
                    _ => true,
                },
            )
            .map(|(_, model)| {
                match self.opts.output_format {
                    Some(OutputFormat::Raw) | None => write!(
                        output,
                        "{}",
                        print::dump_raw(
                            &self.fields,
                            ctx,
                            model,
                            *round,
                            self.opts.repeat_title,
                            self.opts.disable_title,
                            self.opts.raw
                        )
                    )?,
                    Some(OutputFormat::Csv) => write!(
                        output,
                        "{}",
                        print::dump_csv(
                            &self.fields,
                            ctx,
                            model,
                            *round,
                            self.opts.disable_title,
                            self.opts.raw
                        )
                    )?,
                    Some(OutputFormat::KeyVal) => write!(
                        output,
                        "{}",
                        print::dump_kv(&self.fields, ctx, model, self.opts.raw)
                    )?,
                    Some(OutputFormat::Json) => {
                        let par = print::dump_json(&self.fields, ctx, model, self.opts.raw);
                        json_output.as_array_mut().unwrap().push(par);
                    }
                }
                *round += 1;
                Ok(())
            })
            .collect::<Result<Vec<_>>>()?;

        match (json, comma_flag) {
            (true, true) => write!(output, ",{}", json_output)?,
            (true, false) => write!(output, "{}", json_output)?,
            _ => write!(output, "\n")?,
        };

        Ok(IterExecResult::Success)
    }