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handler.go
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handler.go
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package handlers
import (
"fmt"
"strings"
"time"
"gopkg.in/mgo.v2"
"gopkg.in/mgo.v2/bson"
)
var (
// Key -
// KEY USED FOR MONOGDB
Key []byte
)
type (
// Handler -
// MONGODB & API HANDLER
Handler struct {
DB *mgo.Session
}
// HandlerErr -
// HANDLER ERR
HandlerErr struct {
Code string `json:"code"`
Reason string `json:"reason"`
}
)
// New -
// RETURNS NEW HANDLER W/ PROVIDED KEY
func New(key []byte, db *mgo.Session) *Handler {
Key = key
return &Handler{
DB: db,
}
}
// NewErr -
// RETURNS NEW ERROR
func NewErr(msg string) *HandlerErr {
msgArr := formatErrorString(msg)
return &HandlerErr{
Code: msgArr[0],
Reason: msgArr[1],
}
}
func formatErrorString(errStr string) []string {
errSplit := strings.Split(errStr, " collection:")[0]
errs := strings.SplitN(errSplit, " ", 2)
code := errs[0]
reason := fmt.Sprintf("%s", errs[1])
return []string{code, reason}
}
// HandleUpsert -
// HANDLER FOR MONGO UPSERTS
func (h *Handler) HandleUpsert(saveData, owner string) map[string]bson.M {
// UPDATED QUERY VAL
update := bson.M{"$set": bson.M{"save": saveData}}
// WHAT TO MATCH QUERY WITH FOR UPSERT
selector := bson.M{"owner": owner}
return map[string]bson.M{
"selector": selector,
"update": update,
}
}
// InitUpdateSave -
// BSON HELPER FOR UPDATES
func (h *Handler) InitUpdateSave(saveData []byte) bson.M {
return bson.M{"$set": bson.M{"save": saveData, "last_update": time.Now().Unix()}}
}
// InitUpsertSave -
// BSON HELPER FOR UPSERT CLOUD SAVES
func (h *Handler) InitUpsertSave(id, name, owner string, saveData []byte) bson.M {
return bson.M{"$set": bson.M{"id": owner + "_" + name, "owner": owner, "last_update": time.Now().Unix(), "name": name, "save": saveData}}
}
// InitUpsertIDMsg -
// BSON HELPER FOR UPSERT ID
func (h *Handler) InitUpsertIDMsg(saveData []byte) bson.M {
return bson.M{"$set": bson.M{"save": saveData, "last_update": time.Now().Unix()}}
}