1

I have a c# project and I'm trying to update a single value of an object using FireSharp. However, when I do, it deletes the other objects that are strings.

tldr question:

Is it possible to update only a single field of an object using Firesharp or do I have to include all fields when updating?

In the example on their GitHub, they set all fields with:

var todo = new Todo {
                name = "Execute SET",
                priority = 2
            };
SetResponse response = await _client.SetAsync("todos/set", todo);
Todo result = response.ResultAs<Todo>(); //The response will contain the data written

and then they update the fields with :

var todo = new Todo {
                name = "Execute UPDATE!",
                priority = 1
            };

FirebaseResponse response =await  _client.UpdateAsync("todos/set", todo);
Todo todo = response.ResultAs<Todo>(); //The response will contain the data written

I know this is possible in other languages so I feel like this should be possible in FireSharp.

My Case:

for example if I have a class like StudentProfile:

class StudentProfile {
   public string Firstname {get; set;}
   public string Lastname {get; set;}
   public int Age {get; set;}
}

when I uploaded to firebase, I use:

StudentProfile studentProfile = new StudentProfile 
{
   Firstname = "John",
   Lastname = "Doe",
   Age = 18
};

client.Set("Students/" + firebaseUserId + "/StudentProfile", studentProfile);

Now let's say I wanted to update the age. First I would get the info:

var result = client.Get("Students/" + firebaseUserId + "/StudentProfile");

StudentProfile student = result.ResultAs<StudentProfile>();

Now I want to update only the age. However, this is where it seems to update the Age but then delete the other values that are strings

int newAge = student.Age + 1;

StudentProfile updatedStudent = new StudentProfile 
{
   Age = newAge
};

client.UpdateAsync("Students/" + firebaseUserId + "/StudentProfile, updatedStudent)

Is it possible to update only a single field of an object using Firesharp or do I have to include all fields when updating?

Basically, it's a pain if I have to consistently write out all of the fields every time I want to update something.

Cflux
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  • i would try the github discussions page: https://github.com/ziyasal/FireSharp/discussions/categories/q-a – jazb Jan 26 '21 at 04:05
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    @Jazb, I never knew that existed before. Thank you for pointing that out. I will try there as well. – Cflux Jan 26 '21 at 04:08

2 Answers2

1

The simplest way is to just expand the path on the left-hand side to the age, and then use SetAsync:

client.GetAsync(
  "Students/" + firebaseUserId + "/StudentProfile/Age", 
  newAge
)
Frank van Puffelen
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0

You can store your values to update as Dictionary<string,object>. Then you can even update and push nested objects by defining the path as string.

Your example:

int newAge = student.Age + 1;

Dictionary<string,object> updatedStudent = new Dictionary<string,object>(); 
updatedStudent.Add("Age",newAge);

client.UpdateAsync("Students/" + firebaseUserId + "/StudentProfile, updatedStudent);

Adding something like this, would push a nested object to the jsontree:

    ...
updatedStudent.Add("Address/Street","Main Ave. 1");
client.UpdateAsync("Students/" + firebaseUserId + "/StudentProfile, updatedStudent);

Result would be:

    {
       "Firstname": "John",
       "Lastname": "Doe",
       "Age": 18,
       "Address":{
           "Street": "Main Ave. 1"
       }

    }
Christian Figul
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