Gibheer
c7ead94934
This modifies the zone list command in such a way, that a query result could be directly returned to the response. With a bit of work, large query results could be rendered with a streaming json renderer to the output.
52 lines
1.2 KiB
Go
52 lines
1.2 KiB
Go
package main
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import (
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"fmt"
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"dim/query"
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"dim/types"
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)
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type (
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ZoneListOptions struct {
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Attributes types.FieldList `json:"attributes"`
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}
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)
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var (
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zoneListMap = map[string]string{
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"name": "z.name",
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"modified_by": "z.modified_by",
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"modified_at": "z.modified_at",
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"created_by": "z.modified_by",
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"created_at": "z.modified_at",
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}
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)
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func zoneList(c *Context, req Request, res *Response) error {
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options := ZoneListOptions{
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Attributes: types.NewFieldList("name"),
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}
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if err := req.ParseAtLeast(0, &options); err != nil {
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res.AddMessage(LevelError, "could not parse options: %s", err)
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return nil
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}
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selClause := query.FieldListToSelect("z", options.Attributes, zoneListMap)
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from := "zones z"
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queryStr := fmt.Sprintf(`select %s from %s`, selClause, from)
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rows, err := c.tx.Query(queryStr)
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if err != nil {
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res.AddMessage(LevelError, "could not return result")
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return fmt.Errorf("could not get zone list: %s - query: %s", err, queryStr)
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}
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defer rows.Close()
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res.Result, err = query.RowsToMap(rows)
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if err != nil {
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res.Result = nil
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res.AddMessage(LevelError, "could not return result")
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return fmt.Errorf("could not parse zone list: %v", err)
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}
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return nil
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}
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