patterns

func DeleteById ¶

func DeleteById(db *mgo.Database, collname string, id interface{}) error

Removes a doc by id, takes care about non stripped string ids.

func FieldStartsWith ¶

func FieldStartsWith(db *mgo.Database, collname, fieldname, val string) ([]interface{}, error)

func FindChildren ¶

func FindChildren(db *mgo.Database, children_coll, parent_fk_field string, parent_id bson.ObjectId, additional_query map[string]interface{}) ([]interface{}, error)

See *1 below.

func FindChildrenByParent ¶

func FindChildrenByParent(db *mgo.Database, parent_coll string, parent_q map[string]interface{}, children_coll, parent_fk_field string, children_q map[string]interface{}) ([]interface{}, error)

[1] This is highly experimental, not used ATM, dont look here, its ugly.

Finds a document in [parent_coll] collection based on [field] [value] equality, then queries [children_coll] for documents which has the _id of that document in their parent_fk_field. Returns children list only, no parent.

func FindEq ¶

func FindEq(db *mgo.Database, coll, field string, value interface{}) (map[string]interface{}, error)

Finds a doc by field-value equality.

func FindQ ¶

func FindQ(db *mgo.Database, coll string, query map[string]interface{}) (map[string]interface{}, error)

Finds a doc by query.

func IncAll ¶

func IncAll(db *mgo.Database, collname string, ids []bson.ObjectId, fieldnames []string, num int) error

func PullFromAll ¶

func PullFromAll(db *mgo.Database, collname, fieldname string, value interface{}) error

Takes a collection, a field and a value and pulls that value from all docs in the collection. Caution, it does not take care about string id values, or even worse, non stripped string id values.

func Satisfies ¶

func Satisfies(db *mgo.Database, collname string, id bson.ObjectId, query map[string]interface{}) (bool, error)

func ToIdWithCare ¶

func ToIdWithCare(id interface{}) bson.ObjectId