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mongo.go
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mongo.go
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package database
import (
"fmt"
"github.com/gin-gonic/gin"
mongotrace "github.com/signalfx/signalfx-go-tracing/contrib/mongodb/mongo-go-driver/mongo"
"github.com/signalfx/tracing-examples/signalfx-tracing/signalfx-go-tracing/gin/server/models"
"go.mongodb.org/mongo-driver/bson"
"go.mongodb.org/mongo-driver/mongo"
"go.mongodb.org/mongo-driver/mongo/options"
)
type mongoManager struct {
Host string
Port int
Name string
ServiceName string
}
var _ Manager = (*mongoManager)(nil)
var mongoClient *mongo.Client
// GetBoardByID returns a board for a given boardID
func (m *mongoManager) GetBoardByID(c *gin.Context, id string) (models.Board, error) {
collection := m.getCollection(c)
board := models.Board{}
err := collection.FindOne(c.Request.Context(), bson.M{"board_id": id}).Decode(&board)
if err != nil {
fmt.Printf("%+v\n", err)
return models.Board{}, err
}
return board, nil
}
// InsertBoard inserts a given board
func (m *mongoManager) InsertBoard(c *gin.Context, board models.Board) error {
collection := m.getCollection(c)
_, err := collection.InsertOne(c.Request.Context(), board)
return err
}
// UpdateBoard saves a given updated board
func (m *mongoManager) UpdateBoard(c *gin.Context, board models.Board) error {
collection := m.getCollection(c)
_, err := collection.UpdateOne(c.Request.Context(), bson.M{"board_id": board.ID}, bson.D{{Key: "$set", Value: board}})
return err
}
// getCollection returns board collection
func (m *mongoManager) getCollection(c *gin.Context) *mongo.Collection {
if mongoClient == nil {
opts := options.Client()
opts.SetMonitor(mongotrace.NewMonitor(mongotrace.WithServiceName("signalfx-battleship")))
var err error
mongoClient, err = mongo.Connect(c.Request.Context(), opts.ApplyURI(fmt.Sprintf("mongodb://%s:%d", m.Host, m.Port)))
if err != nil {
fmt.Printf("Can't connect to mongo, go error %v\n", err)
panic(err.Error())
}
}
db := mongoClient.Database(m.Name)
collection := db.Collection(models.CollectionBoard)
return collection
}
// Close closes open DB session
func (m *mongoManager) Close(c *gin.Context) {
if mongoClient != nil {
mongoClient.Disconnect(c.Request.Context())
mongoClient = nil
}
}