In my controller I have:
def index
#title = 'asdsadas'
#kategoris = Tag.where("name like ?", "%#{params[:q]}%")
respond_to do |format|
format.html
format.json { render :json => #kategoris.map(&:attributes) }
end
end
I created a monkey patch as the answer to this question:
JSON encoding wrongly escaped (Rails 3, Ruby 1.9.2)
But the JSON has still not the correct encoding example:
Delta i t��vlingar f��r biljetter
I am pretty sure that you could fix this with your database but the quick fix may be:
new_kategoris = #kategoris.map {|v| v.force_encoding('UTF-8') }
format.json { render :json => new_kategoris.map(&:attributes) }
Related
I am using pretty_generate in my controller, but I am getting the following error
'only generation of JSON objects or arrays allowed'
#celebrities = Celebrity.includes(:category)
respond_to do |format|
format.json { render json: JSON.pretty_generate(#celebrities.to_json(:include =>{:category => {:only => [:category]} })) }
end
I am not sure why I am getting this error
As the error suggest, only generation of JSON objects or arrays allowed. I guess you should try this.
#celebrities = Celebrity.includes(:category)
respond_to do |format|
format.json { render json: JSON.pretty_generate(JSON.parse(#celebrities.to_json(:include =>{:category => {:only => [:category]} })))}
end
I'm using Rails 4.0.2 with paperclip for image upload in my project. Also I need to send a full image path of paperclip. So I can do it with add new field and set image path manually in my show controller method for particular record.
show
def show
respond_to do |format|
format.html
format.json { :json => JSON::parse(#demo.to_json.merge("new_field" => #demo.image_url.url).to_json}
end
end
When I view Json for any of my record, this is will showing good.
{
id: "1",
name: "demo",
new_field: "/demo/1/original/file.jpg"
}
In same scenario, I need to get the full image path of paperclip image for all records when I am requesting to index method on controller
index
def index
#demos = Demo.all
respond_to do |format|
format.html
format.json { :json => Demo.all.to_json}
end
end
I tried some of codes, but I don't know how exactly to write
def index
#demos = Demo.all
#demos.each do |demo|
new_field = {"new_field" => #demo.image_url.url}
# After I stucked with logic, how to uppend with 'demo'.
end
respond_to do |format|
format.html
format.json { :json => Demo.all.to_json}
end
end
How do I iterate my individual Demo model and How to merge full image path into each record.
I found the solution for my question,
def index
#demos = Demo.all
#demos_data = []
#demos.each do |demo|
new_field = {"new_field" => #demo.new_field.url}
demo = JSON::parse(demo.to_json).merge(new_field)
#demos_data << demo
end
respond_to do |format|
format.html
format.json { :json => #demos_data}
end
end
I suggest you to use two approaches, 1)use active model serializer to expose json response. 2) use jbuilder library to expose custom fields. Still you need help please let me know.
Try this:-
def index
#demos = Demo.all
#demos_data = []
#demos.each do |demo|
demo["new_field"] = #demo.image_url.url
#demos_data << demo
end
respond_to do |format|
format.html
format.json { :json => #demos_data}
end
end
maybe you can try:
def index
#demos = Demo.all
#demos.map do |demo|
new_field = {"new_field" => #demo.image_url.url}
demo.attributes.merge(new_field)
end
respond_to do |format|
format.html
format.json { :json => #demos}
end
end
attributes method returns a hash of all the object attributes, just need merge new key-value into the returned hash.
Another way of doing it is in your controller where you are rendering the json
render json: #merchants,
include: {
offers: {
except: [:created_at, :updated_at],
include: {
categories: {
except: [:created_at, :updated_at]
}
}
},
location: {
methods: :country_name,
except: [:created_at, :updated_at]
}
},
except: [:created_at, :updated_at]
Note the methods: :country_name, there you can render methods from your model as json attributes. and through include: ... you can eager load and render related models.
I am using rails 4.0.2. For my mobile api, I need to send JSON values to that. Here I face some problems to sending JSON . I want to customize my JSON with index key
For example, when I request index of my cities controller,
http:localhost:3000/cities.json
I got JSON value like this,
[
{"id":1,"name":"AAAA"},
{"id":2,"name":"BBBB"},
{"id":2,"name":"CCCC"}
]
But I want to surrounded with some named object or array.
{
"cities" :
[
{"id":1,"name":"AAAA"},
{"id":2,"name":"BBBB"},
{"id":2,"name":"CCCC"}
]
}
Now I tried in my controller,
def index
#cities = City.all
respond_to do |format|
format.html
format.json{ render :json => #cities.to_json(:methods => [:image_url]) }
# :methods => [:image_url] this is related to paperclip gem
end
end
Try this first as:-
def index
#cities = City.all
cit ={'cities' => #cities}
respond_to do |format|
format.html
format.json{ render :json => cit}
end
end
After that try as:-
def index
#cities = City.all
cit ={'cities' => #cities}
respond_to do |format|
format.html
format.json{ render :json => cit.to_json(:methods => [:image_url]) }
end
end
I'm using the respond_to and respond_with in a rails app, but in one use case I need to respond with just a text for just one of the resource formats (:json)... But I can't find how to do this...
I want something like this (I know this doesn't work)
def create
...
respond_with(:json, render :text => "Successfully Done!")
end
Any Idea??
Thanks!
It seems that this may be what you are looking for:
def create
respond_to do |format|
format.html
format.json { render :text => "Successfully Done!" }
end
end
Andres,
The solution is this:
class TextController < ApplicationController
respond_to :json, :text
def index
respond_with do |format|
format.json {
render :text => "I'm a text provided by json format"
}
format.text {
render :text => "I'm a text"
}
end
end
end
And at your routes.rb:
match '/text' => 'text#index', defaults: { format: 'text' }
I want my Rails rest application has json as default output format , also I want remove html format. Any suggestions? Thanks
Yes you can do it.
In your controller,
respond_to do |format|
#format.html # show.html.erb
#format.xml { render :xml => #post }
format.json { render :json => #post }
end
or you can handle it as javascript
respond_to do |format| format.js { render :json { :only => :name}.to_json end
then you just access your action with ".js" in the end
Try like this
format.any(:xml, :html, :json) { render :json => #post }