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coderminer/goutil

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goutil

mgo关于MongoDB的一些基础操作做一下封装,便于直接调用

  • 插入一个或多个document
func Insert(db, collection string, docs ...interface{}) error
  • 查询一个满足条件的document

query查询条件 bson.M{"_id":"id"}
selector相当于MongoDB中的projection,查询结果中是否显示某个字段 bson.M{"_id":0}

func FindOne(db, collection string, query, selector, result interface{}) error
  • 查询满足条件的所有结果
func FindAll(db, collection string, query, selector, result interface{}) error
  • 对查询结果分页处理
func FindPage(db, collection string, page, limit int, query, selector, result interface{}) error
  • 查询满足条件的 cursor
func FindIter(db, collection string, query interface{}) *mgo.Iter
  • 更新满足条件的一个document
func Update(db, collection string, selector, update interface{}) error
  • 更新满足条件的所有的docuement
func UpdateAll(db, collection string, selector, update interface{}) error
  • 更新,如果不存在就插入一个新的document
func Upsert(db, collection string, selector, update interface{}) error
  • 删除满足条件的一个 document
func Remove(db, collection string, selector interface{}) error
  • 删除满足条件的所有的document
func RemoveAll(db, collection string, selector interface{}) error
  • 批量的插入
func BulkInsert(db, collection string, docs ...interface{}) (*mgo.BulkResult, error)
  • 批量更新
func BulkUpdate(db, collection string, pairs ...interface{}) (*mgo.BulkResult, error)
  • 批量更新所有
func BulkUpdateAll(db, collection string, pairs ...interface{}) (*mgo.BulkResult, error)
  • 批量删除
func BulkRemove(db, collection string, selector ...interface{}) (*mgo.BulkResult, error)
  • 批量删除所有
func BulkRemoveAll(db, collection string, selector ...interface{}) (*mgo.BulkResult, error)
  • 聚合操作查找所有的
func PipeAll(db, collection string, pipeline, result interface{}, allowDiskUse bool) error
  • 聚合操作查找一个
func PipeOne(db, collection string, pipeline, result interface{}, allowDiskUse bool) error
  • 聚合操作查找cursor
func PipeIter(db, collection string, pipeline interface{}, allowDiskUse bool) *mgo.Iter
  • Document是否为空
func IsEmpty(db, collection string) bool
  • 查询满足条件的数量
func Count(db, collection string, query interface{}) (int, error)

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