mango

mango

From a database management tools for optifur services, mango grew to become its own tooling module for use with mongodb databases.

mgo helper functions

The goal of the lib is to be able to generate simple request and pigination for mgo based on an input struct.

One function to generate pagination data based on mgo tags of the struct One function to generate filtering data based on mgo tags of the struct

filtering

Need to be able to filter, based on an input struct

• the tag define the field name/path of the mgo data _id, username, friends.amount, etc... (The same way mongo does)
• the tag should define the test opperator. It will be "fieldFromStruct OPERATOR fieldInDb" using mgo operators
• default filtering is a $and, can be set to $or in function options

Tag format: mgo-filter:"fieldName,op:OPERATOR,omitempty" with:

• fieldName the name of the field in mongo database, may be toto.titi for field titi inside toto
• op the operator to use for comparision, eg $eq, $gt, etc
• omitempty define the behaviour for empty/nil value. If omitempty is set, empty value or nil value will be ignored, else empty values will be used when filtering

pagination

Tag format:

• mgo-paging:"limit,default: 10"
• mgo-paging:"offset" // No default for offset, 0
• mgo-paging:"sort,default: _id_" // Any field
• mgo-paging:"sort-revert,default: _id_" // Any field

Nil pointer => use default value