partial in Jbuilder is not working with associations

Question

I am writing partials using jbuilder to return json data. I have an module in which I am returning data per record in show method and all records in index. But all record things is not working here what I did my show method in controller ``` def index @signals = Signal.all.paginate(:page => params[:page], :per_page => 10) end def show @signal = Signal.find(params[:id]) end ``` Here is my partial _signal.json_jbuilder ``` json.(@signal, :id, :power) json.user do json.first_name @signal.user.first_name json.last_name @signal.user.last_name json.email @signal.user.email end json.location @signal.signal_location, :latitude, :longitude json.device do json.model @signal.device.phonemodel json.os_version @signal.device.os_version json.os_type @signal.device.os_type json.sim_card_provider @signal.device.sim_card_provider end ``` now I am using this partial in my show.json.jbuilder and index.json.jbuilder here is my show.json.jbuilder ``` json.partial! 'signals/signal', signal: :@signal ``` it…

Accepted Answer

You should change your partial to use local variable.

For example

```
json.(signal, :id, :power)
json.user do
  json.first_name signal.user.first_name
  json.last_name signal.user.last_name
  json.email signal.user.email
end
json.location signal.signal_location, :latitude, :longitude
```

And in `show.json.jbuilder`

```
json.partial! 'signals/signal', signal: @signal
```

in `index.json.jbuilder`

```
json.partial! partial: 'signals/signal', collection: @signals, as: :signal
```

partial in Jbuilder is not working with associations

Solution

Problem