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These are only examples for now and nothing serious yet but showcase the innards of query and types for now. It is a beginning.master
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package main |
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import ( |
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"fmt" |
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"dim/types" |
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) |
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// Creates a new DNS zone.
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func zoneCreate(c *Context, req Request, res *Response) error { |
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zoneName := new(types.ZoneName) |
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if err := req.Parse(&zoneName); err != nil { |
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res.AddMessage(LevelError, "expected zone name, but got error: %s", err) |
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return nil |
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} |
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id := 0 |
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err := c.tx. |
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QueryRow(`insert into zones(name, created_by, modified_by) |
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values ($1, $2, $2) returning id`, zoneName, c.username). |
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Scan(&id) |
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if err != nil { |
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res.AddMessage(LevelError, "could not create zone") |
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return fmt.Errorf("could not create zone '%s': %s", zoneName, err) |
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} |
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return nil |
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} |
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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(options.Attributes, zoneListMap) |
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rows, err := c.tx.Query(fmt.Sprintf(`select %s from zones z`, selClause)) |
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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", err) |
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} |
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defer rows.Close() |
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res.Result["zones"], err = query.RowsToMap(rows) |
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if err != nil { |
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delete(res.Result, "zones") |
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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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