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47 lines
959 B
Markdown
47 lines
959 B
Markdown
## Passing Arbitrary Options to A Serializer
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Let's say you have a basic Post Controller:
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```
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class PostController < ApplicationController
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def dashboard
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render json: @posts
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end
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end
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```
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Odds are, your serializer will look something like this:
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```
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class PostSerializer < ActiveModel::Serializer
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attributes :id, :title, :body
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end
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```
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This works all fine and well, but maybe you passing in some "artibrary" options
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into the serializer. Here's what you would do:
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### posts_controller.rb
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```
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...
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def dashboard
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render json: @posts, user_id: 12
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end
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...
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```
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### posts_serializer.rb
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```
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...
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def comments_by_me
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Comments.where(user_id: instance_options[:user_id], post_id: object.id)
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end
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...
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```
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These options can be anything that isn't already reserved for use by AMS. For example,
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you won't be able to pass in a `meta` or `root` option like the example above. Those
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parameters are reserved for specific behavior within the app.
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