Remove or Find an object with Mongoose when it is in an array by the object property value
Question
This is what the data looks like for an entity called "Project"
{ systems:[ { systemId: 1234, count: 3 }, { systemId: 87642, count: 2 } ] }
What I want to is find in Projects collection all projects that have in systems an object with the systemId of 1234.
Please note that systems is an Array
1 answers
solution1
1 ACCPTED 2014-10-09 22:14:44
你应该这样
Project.find({'systems':{$elemMatch:{'systemId':1234}}})
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