I have a trouble in a part of code. I'm writing on revel framework(to be clear). This is a Worker go routine, and I want it to do several things:
switch the struct type of the stat variable, according to the source, that would come. I made a switch, but before the all other code would be correct, I don't really know if switch is written properly.
I get cache for the date, and put it in new Work item.
I send Work to channel
here is what I got by now:
func worker(in <-chan Task, out chan <- Work, wg *sync.WaitGroup) {
for t := range in {
for sourceName, charts := range t.Request.Charts {
var stat interface{}
switch sourceName {
case "noagg":
stat = stat.([]NoaggModel)
case "oracle":
stat = stat.([]OracleModel)
default:
panic("Invalid type for Work model!")
}
w := Work{Name:"", Data:""}
err := cache.Get(string(sourceName)+"_"+string(t.Date), &stat);
for chart := range charts{
w.Name = chart["name"]
if err == nil{
w.Data = countDataByName( stat, t.Request.Filters, string(chart["name"]))
}
out <- w
}
}
}
wg.Done() // this worker is now done; let the WaitGroup know.
}
But now I got error that invalid operation: chart["name"] (type int does not support indexing)
But I have structs :
type Chart struct {
Name string `json:"name"`
Type string `json:"type"`
}
type Filter struct {
DayStart string `json:"dayStart"`
DayEnd string `json:"dayEnd"`
TimePeriods interface{} `json:"timePeriods"`
Lines []string `json:"lines"`
}
type Task struct {
Date string
Request ChartOptins
}
type Work struct {
Name string
Data interface{}
}
How should I write in a better way the correct switch, if the type of struct for cache can be different, and why is my name adding is bad and call error?