Update two elements of array on single operation on MongoDB -

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i have document one:

 {    name:'name',  periods:[       {          name:'period 1',        active:true     },     {          name:'period 2',        active:false     }  ] }

i want have 1 active period per unit of time, so, activate period 2, have deactivate period 1 , activate period 2.

how can 1 atomic update operation?


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