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How to fix mongoose findOne returning empty when setting multidimensional array in map?

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0

How to fix mongoose findOne returning empty when setting multidimensional array in map?

I've already tried to utilize a callback function, and I've heard about promises. I tried implementing the two but I'm having a difficult time. When I output console of user it gives me the user object, however after returning model.reviews it isn't defined.

 if(!_.isEmpty(model.reviews))

 let result = model.reviews.map(async (item, index)=>
 console.log('item', item)
 console.log('model', model)

 let user = await User.findOne( _id: item.user_id ).lean().exec((error, model)=> if (error )
 console.log('user', user)

 model.reviews[index].user = user
 )
 

 return res.status(200).json( status: 'success', response: 200, message: 'Found single model.', data: model );
}

I expect to get model.reviews[index].user = USER, but model.reviews[index].user isn't defined in the returned model.reviews.

mongoose promise

share|improve this question

asked Mar 24 at 20:17

thealbertyangthealbertyang

12

add a comment | 

0

How to fix mongoose findOne returning empty when setting multidimensional array in map?

I've already tried to utilize a callback function, and I've heard about promises. I tried implementing the two but I'm having a difficult time. When I output console of user it gives me the user object, however after returning model.reviews it isn't defined.

 if(!_.isEmpty(model.reviews))

 let result = model.reviews.map(async (item, index)=>
 console.log('item', item)
 console.log('model', model)

 let user = await User.findOne( _id: item.user_id ).lean().exec((error, model)=> if (error )
 console.log('user', user)

 model.reviews[index].user = user
 )
 

 return res.status(200).json( status: 'success', response: 200, message: 'Found single model.', data: model );
}

I expect to get model.reviews[index].user = USER, but model.reviews[index].user isn't defined in the returned model.reviews.

mongoose promise

share|improve this question

asked Mar 24 at 20:17

thealbertyangthealbertyang

12

add a comment | 

How to fix mongoose findOne returning empty when setting multidimensional array in map?

I've already tried to utilize a callback function, and I've heard about promises. I tried implementing the two but I'm having a difficult time. When I output console of user it gives me the user object, however after returning model.reviews it isn't defined.

 if(!_.isEmpty(model.reviews))

 let result = model.reviews.map(async (item, index)=>
 console.log('item', item)
 console.log('model', model)

 let user = await User.findOne( _id: item.user_id ).lean().exec((error, model)=> if (error )
 console.log('user', user)

 model.reviews[index].user = user
 )
 

 return res.status(200).json( status: 'success', response: 200, message: 'Found single model.', data: model );
}

I expect to get model.reviews[index].user = USER, but model.reviews[index].user isn't defined in the returned model.reviews.

mongoose promise

share|improve this question

asked Mar 24 at 20:17

thealbertyangthealbertyang

12

 if(!_.isEmpty(model.reviews))

 let result = model.reviews.map(async (item, index)=>
 console.log('item', item)
 console.log('model', model)

 let user = await User.findOne( _id: item.user_id ).lean().exec((error, model)=> if (error )
 console.log('user', user)

 model.reviews[index].user = user
 )
 

 return res.status(200).json( status: 'success', response: 200, message: 'Found single model.', data: model );
}

share|improve this question

asked Mar 24 at 20:17

thealbertyangthealbertyang

12

share|improve this question

asked Mar 24 at 20:17

thealbertyangthealbertyang

12

asked Mar 24 at 20:17

thealbertyangthealbertyang

12

asked Mar 24 at 20:17

thealbertyangthealbertyang

12

1 Answer
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 let result = await Promise.all(model.reviews.map(async (item, index)=>
 console.log('item', item)
 console.log('model', model)

 let user = await User.findOne( _id: item.user_id , function (error, user) !user) return error 
 else 
 return user
 
 )

 model.reviews[index].user = user


 ))

share|improve this answer

answered Mar 24 at 22:20

thealbertyangthealbertyang

12

add a comment | 

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0

 let result = await Promise.all(model.reviews.map(async (item, index)=>
 console.log('item', item)
 console.log('model', model)

 let user = await User.findOne( _id: item.user_id , function (error, user) !user) return error 
 else 
 return user
 
 )

 model.reviews[index].user = user


 ))

share|improve this answer

answered Mar 24 at 22:20

thealbertyangthealbertyang

12

add a comment | 

0

 let result = await Promise.all(model.reviews.map(async (item, index)=>
 console.log('item', item)
 console.log('model', model)

 let user = await User.findOne( _id: item.user_id , function (error, user) !user) return error 
 else 
 return user
 
 )

 model.reviews[index].user = user


 ))

share|improve this answer

answered Mar 24 at 22:20

thealbertyangthealbertyang

12

add a comment | 

 let result = await Promise.all(model.reviews.map(async (item, index)=>
 console.log('item', item)
 console.log('model', model)

 let user = await User.findOne( _id: item.user_id , function (error, user) !user) return error 
 else 
 return user
 
 )

 model.reviews[index].user = user


 ))

share|improve this answer

answered Mar 24 at 22:20

thealbertyangthealbertyang

12

 let result = await Promise.all(model.reviews.map(async (item, index)=>
 console.log('item', item)
 console.log('model', model)

 let user = await User.findOne( _id: item.user_id , function (error, user) !user) return error 
 else 
 return user
 
 )

 model.reviews[index].user = user


 ))

share|improve this answer

answered Mar 24 at 22:20

thealbertyangthealbertyang

12

answered Mar 24 at 22:20

thealbertyangthealbertyang

12

answered Mar 24 at 22:20

thealbertyangthealbertyang

12