Query Condition - $regex

Function Build

The query package provides two functions: Regex and RegexOptions.

Use Regex to build a query condition with only $regex:

// bson.D{bson.E{Key:"name", Value:bson.D{bson.E{Key:"$regex", Value:"^ming"}}}}
regex := query.Regex("name", "^ming")

Use RegexOptions to build $regex and $options together:

// bson.D{bson.E{Key:"name", Value:bson.D{bson.E{Key:"$regex", Value:"^ming"}, bson.E{Key:"$options", Value:"i"}}}}
regex := query.RegexOptions("name", "^ming", "i")

Method Build (Builder)

The builder provides methods with the same names. Use them when composing $regex with other query conditions.

Using Regex:

// bson.D{bson.E{Key:"name", Value:bson.D{bson.E{Key:"$regex", Value:"^ming"}}}}
regex := query.NewBuilder().
    Regex("name", "^ming").
    Build()

Using RegexOptions:

// bson.D{bson.E{Key:"enabled", Value:bson.D{bson.E{Key:"$eq", Value:true}}}, bson.E{Key:"name", Value:bson.D{bson.E{Key:"$regex", Value:"^ming"}, bson.E{Key:"$options", Value:"i"}}}}}
regex := query.NewBuilder().
    Eq("enabled", true).
    RegexOptions("name", "^ming", "i").
    Build()