dim/zone_list.go

package main

import (
	"fmt"

	"dim/query"
	"dim/types"
)

type (
	ZoneListOptions struct {
		Attributes types.FieldList `json:"attributes"`
	}
)

var (
	zoneListMap = map[string]string{
		"name":        "z.name",
		"modified_by": "z.modified_by",
		"modified_at": "z.modified_at",
		"created_by":  "z.modified_by",
		"created_at":  "z.modified_at",
	}
)

func zoneList(c *Context, req Request, res *Response) error {
	options := ZoneListOptions{
		Attributes: types.NewFieldList("name"),
	}
	if err := req.ParseAtLeast(0, &options); err != nil {
		res.AddMessage(LevelError, "could not parse options: %s", err)
		return nil
	}

	selClause := query.FieldListToSelect("z", options.Attributes, zoneListMap)
	from := "zones z"
	queryStr := fmt.Sprintf(`select %s from %s`, selClause, from)
	rows, err := c.tx.Query(queryStr)
	if err != nil {
		res.AddMessage(LevelError, "could not return result")
		return fmt.Errorf("could not get zone list: %s - query: %s", err, queryStr)
	}
	defer rows.Close()
	res.Result, err = query.RowsToMap(rows)
	if err != nil {
		res.Result = nil
		res.AddMessage(LevelError, "could not return result")
		return fmt.Errorf("could not parse zone list: %v", err)
	}
	return nil
}