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[Mongo] Mongo Go Driver

官方文件

Quick Reference：列出常用的 CRUD 語法

CRUD​

官方文件

CRUD Operations

READ​

官方文件

Specify a Query

Operators​

comparison operators​
func main() {
  // ...
 filter := bson.D{{"runtime", bson.D{{"$ne", 60}}}}
 filter := bson.D{{"rating.average", bson.D{{"$gte", 7.9}}}}
 filter := bson.D{{"genres", "Drama"}}
 filter := bson.D{{"genres", bson.A{"Drama"}}}
 filter := bson.D{{"runtime", bson.D{{"$nin", bson.A{30, 42}}}}}

 cursor, err := coll.Find(ctx, filter)
  // ...
}
logical operators​
func main() {
  // ...

 filter := bson.D{{"$nor", bson.A{
  bson.D{{"rating.average", bson.D{{"$lt", 5}}}},
  bson.D{{"rating.average", bson.D{{"$gt", 9.3}}}},
 }}}
 filter := bson.D{{"$and", bson.A{
  bson.D{{"rating.average", bson.D{{"$gt", 9}}}},
  bson.D{{"genres", "Drama"}},
 }}}
 filter := bson.D{{"genres", "Drama"}, {"genres", "Horror"}}
 filter := bson.D{{"runtime", bson.D{{"$not", bson.D{{"$eq", 60}}}}}}

 cursor, err := coll.Find(ctx, filter)
  // ...
}