func HandleDelete(collName string, one bool, selector bson.M) (err error) {
// Mongo session
session, needclose, err := DAO.SessMng.GetDefault()
if err != nil {
return
}
// Close session if it's needed
if needclose {
defer session.Close()
}
// Mongo Collection
col := getCollection(collName, session)
if len(selector) == 0 {
err = errors.New("can not drop entire collection, selector can not be empty")
return
}
// Remove one document if no query, otherwise remove all matching query
if one {
err = col.Remove(selector)
} else {
_, err = col.RemoveAll(selector)
}
return
}
func HandleQueryAll(documents interface{}, queryStruct QueryStruct) (total int, err error) {
// Mongo session
session, needclose, err := DAO.SessMng.GetDefault()
if err != nil {
return
}
// Close session if it's needed
if needclose {
defer session.Close()
}
// Compose a query from request
query, err := composeQuery(session, queryStruct, false)
if err != nil {
return
}
// Get all documents
if err = query.All(documents); err != nil {
return
}
// Count documents if count parameter is included in query
query.Skip(0)
query.Limit(0)
if n, err := query.Count(); err == nil {
total = n
}
return
}
func HandleQueryOne(document interface{}, queryStruct QueryStruct) (err error) {
// Mongo session
session, needclose, err := DAO.SessMng.GetDefault()
if err != nil {
return
}
// Close session if it's needed
if needclose {
defer session.Close()
}
// Compose a query from request
query, err := composeQuery(session, queryStruct, true)
if err != nil {
return
}
// Get one document
err = query.One(document)
return
}
func HandlePartialUpdateByQuery(collName string, selector bson.M, document bson.M) (err error) {
// Mongo session
session, needclose, err := DAO.SessMng.GetDefault()
if err != nil {
return
}
// Close session if it's needed
if needclose {
defer session.Close()
}
// Mongo Collection
col := getCollection(collName, session)
change := bson.M{"$set": document}
err = col.Update(selector, change)
return
}
func HandleUpdateOne(document interface{}, queryStruct QueryStruct) (created bool, err error) {
// Mongo session
session, needclose, err := DAO.SessMng.GetDefault()
if err != nil {
return
}
// Close session if it's needed
if needclose {
defer session.Close()
}
// Mongo Collection
col := getCollection(queryStruct.CollectionName, session)
// Update document(/s)
// replace dot in field name to /u2024
// FIXME: replace
// st := reflect.TypeOf(document)
newbson := remove_dots(document)
in, _ := bson.Marshal(newbson)
bson.Unmarshal(in, document)
var (
info *mgo.ChangeInfo
)
// Update document by id
info, err = col.UpsertId(queryStruct.Selector[ParamID], document)
if err != nil {
return
}
// Get updated id from mongo
if info != nil && info.UpsertedId != nil {
// docid, _ = info.UpsertedId.(string)
created = (info.Updated == 0)
}
return
}
func HandleInsert(collName string, document interface{}) (err error) {
// Mongo session
session, needclose, err := DAO.SessMng.GetDefault()
if err != nil {
return
}
// Close session if it's needed
if needclose {
defer session.Close()
}
// Mongo Collection
col := getCollection(collName, session)
// Insert document to collection
if err = col.Insert(document); err != nil {
logrus.Errorf("Error inserting document: %v", err)
return
}
return
}