Created
March 13, 2022 18:09
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| pipeline = [ | |
| { | |
| '$lookup': { | |
| 'from': 'students', | |
| 'as': 'studentArray', | |
| 'pipeline': [ | |
| { | |
| '$sort': { | |
| 'balance_coins': -1 | |
| } | |
| }, { | |
| '$limit': 10 | |
| } | |
| ] | |
| }, | |
| }, | |
| { | |
| '$project': { | |
| 'balance_coins': 1, | |
| 'studentArray': { | |
| '$filter': { | |
| 'input': '$studentArray', | |
| 'as': 'student', | |
| 'cond': { | |
| '$eq': [ | |
| '$$student.branch', 'IT' | |
| ] | |
| } | |
| } | |
| } | |
| } | |
| } | |
| ] | |
| try: | |
| results = db.students_coins_balance.aggregate(pipeline) | |
| except Exception as e: | |
| print(e) |
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