Javascript Response from Rails Controller leads to Uncaught SyntaxError: Unexpected token :
1
I have a form that creates a relation and when the form is submitted, javascript code that addes the newly connected nodes and the relations connecting them to the cytoscape graph should be returned:
The form:
<%= form_for Relation.new, :url => url_for(:controller => 'relations', :action => 'add_dependency'), remote: true do |f| %>
<%= f.hidden_field :to_id, :value => @article.id %>
<%= f.hidden_field :graph, :value => 1 %>
<%= f.select :from_id, , {}, {class: "select-article"} %>
<%= f.submit "Add a dependency of this article." %>
<% end %>
The controller code:
def add_dependency
@relation = Relation.find_or_create_by(relation_params)
@relation.user << current_user
respond_to do |format|
if @relation.save
elements = json_for_cytoscape(@relation.from.self_and_all_dependencies_of_depth_and_less(3))
format.json { render :show, status: :created, location: @relation }
format.js { render js: "ancestors.add( #{elements} ); console.log('Hello');" }
else
format.json { render json: @relation.errors, status: :unprocessable_entity }
end
end
end
I get this error (and no "Hello") in the javascript console:
Uncaught SyntaxError: Unexpected token :
at processResponse (rails-ujs.self-8944eaf3f9a2615ce7c830a810ed630e296633063af8bb7441d5702fbe3ea597.js?body=1:244)
at rails-ujs.self-8944eaf3f9a2615ce7c830a810ed630e296633063af8bb7441d5702fbe3ea597.js?body=1:173
at XMLHttpRequest.xhr.onreadystatechange (rails-ujs.self-8944eaf3f9a2615ce7c830a810ed630e296633063af8bb7441d5702fbe3ea597.js?body=1:228)
This is the response:
ancestors.add( {:edges=>, :nodes=>[{:data=>{:id=>200, :title=>"Test Yourself: Area & arc length using calculus", :href=>"http://localhost:3000/articles/200", :rank=>0.000459770114943, :color=>"grey"}}]} ); console.log('Hello');
javascript ruby-on-rails cytoscape.js
asked Nov 25 '18 at 16:28
troriclebatroricleba
467
add a comment |
1
I have a form that creates a relation and when the form is submitted, javascript code that addes the newly connected nodes and the relations connecting them to the cytoscape graph should be returned:
The form:
<%= form_for Relation.new, :url => url_for(:controller => 'relations', :action => 'add_dependency'), remote: true do |f| %>
<%= f.hidden_field :to_id, :value => @article.id %>
<%= f.hidden_field :graph, :value => 1 %>
<%= f.select :from_id, , {}, {class: "select-article"} %>
<%= f.submit "Add a dependency of this article." %>
<% end %>
The controller code:
def add_dependency
@relation = Relation.find_or_create_by(relation_params)
@relation.user << current_user
respond_to do |format|
if @relation.save
elements = json_for_cytoscape(@relation.from.self_and_all_dependencies_of_depth_and_less(3))
format.json { render :show, status: :created, location: @relation }
format.js { render js: "ancestors.add( #{elements} ); console.log('Hello');" }
else
format.json { render json: @relation.errors, status: :unprocessable_entity }
end
end
end
I get this error (and no "Hello") in the javascript console:
Uncaught SyntaxError: Unexpected token :
at processResponse (rails-ujs.self-8944eaf3f9a2615ce7c830a810ed630e296633063af8bb7441d5702fbe3ea597.js?body=1:244)
at rails-ujs.self-8944eaf3f9a2615ce7c830a810ed630e296633063af8bb7441d5702fbe3ea597.js?body=1:173
at XMLHttpRequest.xhr.onreadystatechange (rails-ujs.self-8944eaf3f9a2615ce7c830a810ed630e296633063af8bb7441d5702fbe3ea597.js?body=1:228)
This is the response:
ancestors.add( {:edges=>, :nodes=>[{:data=>{:id=>200, :title=>"Test Yourself: Area & arc length using calculus", :href=>"http://localhost:3000/articles/200", :rank=>0.000459770114943, :color=>"grey"}}]} ); console.log('Hello');
javascript ruby-on-rails cytoscape.js
asked Nov 25 '18 at 16:28
troriclebatroricleba
467
What was the rendered response there? (you can find out in browser's network tab)
– Sergio Tulentsev
Nov 25 '18 at 16:46
Do you have to wrap it in script tags maybe?
– unflores
Nov 25 '18 at 16:55
@SergioTulentsev I added it to the question.
– troricleba
Nov 25 '18 at 16:56
@unflores No, this worked with a simpler script (that just reloaded the site) without a script tag.
– troricleba
Nov 25 '18 at 16:57
add a comment |
1
1
1
I have a form that creates a relation and when the form is submitted, javascript code that addes the newly connected nodes and the relations connecting them to the cytoscape graph should be returned:
The form:
<%= form_for Relation.new, :url => url_for(:controller => 'relations', :action => 'add_dependency'), remote: true do |f| %>
<%= f.hidden_field :to_id, :value => @article.id %>
<%= f.hidden_field :graph, :value => 1 %>
<%= f.select :from_id, , {}, {class: "select-article"} %>
<%= f.submit "Add a dependency of this article." %>
<% end %>
The controller code:
def add_dependency
@relation = Relation.find_or_create_by(relation_params)
@relation.user << current_user
respond_to do |format|
if @relation.save
elements = json_for_cytoscape(@relation.from.self_and_all_dependencies_of_depth_and_less(3))
format.json { render :show, status: :created, location: @relation }
format.js { render js: "ancestors.add( #{elements} ); console.log('Hello');" }
else
format.json { render json: @relation.errors, status: :unprocessable_entity }
end
end
end
I get this error (and no "Hello") in the javascript console:
Uncaught SyntaxError: Unexpected token :
at processResponse (rails-ujs.self-8944eaf3f9a2615ce7c830a810ed630e296633063af8bb7441d5702fbe3ea597.js?body=1:244)
at rails-ujs.self-8944eaf3f9a2615ce7c830a810ed630e296633063af8bb7441d5702fbe3ea597.js?body=1:173
at XMLHttpRequest.xhr.onreadystatechange (rails-ujs.self-8944eaf3f9a2615ce7c830a810ed630e296633063af8bb7441d5702fbe3ea597.js?body=1:228)
This is the response:
ancestors.add( {:edges=>, :nodes=>[{:data=>{:id=>200, :title=>"Test Yourself: Area & arc length using calculus", :href=>"http://localhost:3000/articles/200", :rank=>0.000459770114943, :color=>"grey"}}]} ); console.log('Hello');
javascript ruby-on-rails cytoscape.js
asked Nov 25 '18 at 16:28
troriclebatroricleba
467
I have a form that creates a relation and when the form is submitted, javascript code that addes the newly connected nodes and the relations connecting them to the cytoscape graph should be returned:
The form:
<%= form_for Relation.new, :url => url_for(:controller => 'relations', :action => 'add_dependency'), remote: true do |f| %>
<%= f.hidden_field :to_id, :value => @article.id %>
<%= f.hidden_field :graph, :value => 1 %>
<%= f.select :from_id, , {}, {class: "select-article"} %>
<%= f.submit "Add a dependency of this article." %>
<% end %>
The controller code:
def add_dependency
@relation = Relation.find_or_create_by(relation_params)
@relation.user << current_user
respond_to do |format|
if @relation.save
elements = json_for_cytoscape(@relation.from.self_and_all_dependencies_of_depth_and_less(3))
format.json { render :show, status: :created, location: @relation }
format.js { render js: "ancestors.add( #{elements} ); console.log('Hello');" }
else
format.json { render json: @relation.errors, status: :unprocessable_entity }
end
end
end
I get this error (and no "Hello") in the javascript console:
Uncaught SyntaxError: Unexpected token :
at processResponse (rails-ujs.self-8944eaf3f9a2615ce7c830a810ed630e296633063af8bb7441d5702fbe3ea597.js?body=1:244)
at rails-ujs.self-8944eaf3f9a2615ce7c830a810ed630e296633063af8bb7441d5702fbe3ea597.js?body=1:173
at XMLHttpRequest.xhr.onreadystatechange (rails-ujs.self-8944eaf3f9a2615ce7c830a810ed630e296633063af8bb7441d5702fbe3ea597.js?body=1:228)
This is the response:
ancestors.add( {:edges=>, :nodes=>[{:data=>{:id=>200, :title=>"Test Yourself: Area & arc length using calculus", :href=>"http://localhost:3000/articles/200", :rank=>0.000459770114943, :color=>"grey"}}]} ); console.log('Hello');
javascript ruby-on-rails cytoscape.js
javascript ruby-on-rails cytoscape.js
asked Nov 25 '18 at 16:28
troriclebatroricleba
467
asked Nov 25 '18 at 16:28
troriclebatroricleba
467
edited Nov 25 '18 at 17:08
troricleba
asked Nov 25 '18 at 16:28
troriclebatroricleba
467
asked Nov 25 '18 at 16:28
troriclebatroricleba
467
asked Nov 25 '18 at 16:28
troriclebatroricleba
467
467
What was the rendered response there? (you can find out in browser's network tab)
– Sergio Tulentsev
Nov 25 '18 at 16:46
Do you have to wrap it in script tags maybe?
– unflores
Nov 25 '18 at 16:55
@SergioTulentsev I added it to the question.
– troricleba
Nov 25 '18 at 16:56
@unflores No, this worked with a simpler script (that just reloaded the site) without a script tag.
– troricleba
Nov 25 '18 at 16:57
add a comment |
What was the rendered response there? (you can find out in browser's network tab)
– Sergio Tulentsev
Nov 25 '18 at 16:46
Do you have to wrap it in script tags maybe?
– unflores
Nov 25 '18 at 16:55
@SergioTulentsev I added it to the question.
– troricleba
Nov 25 '18 at 16:56
@unflores No, this worked with a simpler script (that just reloaded the site) without a script tag.
– troricleba
Nov 25 '18 at 16:57
What was the rendered response there? (you can find out in browser's network tab)
– Sergio Tulentsev
Nov 25 '18 at 16:46
What was the rendered response there? (you can find out in browser's network tab)
– Sergio Tulentsev
Nov 25 '18 at 16:46
Do you have to wrap it in script tags maybe?
– unflores
Nov 25 '18 at 16:55
Do you have to wrap it in script tags maybe?
– unflores
Nov 25 '18 at 16:55
@SergioTulentsev I added it to the question.
– troricleba
Nov 25 '18 at 16:56
@SergioTulentsev I added it to the question.
– troricleba
Nov 25 '18 at 16:56
@unflores No, this worked with a simpler script (that just reloaded the site) without a script tag.
– troricleba
Nov 25 '18 at 16:57
@unflores No, this worked with a simpler script (that just reloaded the site) without a script tag.
– troricleba
Nov 25 '18 at 16:57
add a comment |
2 Answers
2
active
oldest
votes
1
I solved the problem by adding to_json:
json_for_cytoscape(@relation.from.self_and_all_dependencies_of_depth_and_less(3)).to_json
answered Nov 25 '18 at 18:00
troriclebatroricleba
467
add a comment |
0
That response is not valid javascript and the reason is pretty simple. When you cast a Ruby hash to a string the result is not valid JS:
irb(main):001:0> { :foo => 'bar'}.to_s
=> "{:foo=>"bar"}"
Instead you need to encode it as JSON.
irb(main):003:0> { :foo => 'bar'}.to_json
=> "{"foo":"bar"}"
Due to quoting issues is easier done if you actually create a view instead of rendering inline:
ancestors.add( <%= elements.to_json %> );
console.log('Hello');
answered Nov 25 '18 at 18:05
maxmax
45.7k859104
add a comment |
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2 Answers
2
active
oldest
votes
2 Answers
2
active
oldest
votes
active
oldest
votes
active
oldest
votes
1
I solved the problem by adding to_json:
json_for_cytoscape(@relation.from.self_and_all_dependencies_of_depth_and_less(3)).to_json
answered Nov 25 '18 at 18:00
troriclebatroricleba
467
add a comment |
1
I solved the problem by adding to_json:
json_for_cytoscape(@relation.from.self_and_all_dependencies_of_depth_and_less(3)).to_json
answered Nov 25 '18 at 18:00
troriclebatroricleba
467
add a comment |
1
1
1
I solved the problem by adding to_json:
json_for_cytoscape(@relation.from.self_and_all_dependencies_of_depth_and_less(3)).to_json
answered Nov 25 '18 at 18:00
troriclebatroricleba
467
I solved the problem by adding to_json:
json_for_cytoscape(@relation.from.self_and_all_dependencies_of_depth_and_less(3)).to_json
answered Nov 25 '18 at 18:00
troriclebatroricleba
467
answered Nov 25 '18 at 18:00
troriclebatroricleba
467
answered Nov 25 '18 at 18:00
troriclebatroricleba
467
answered Nov 25 '18 at 18:00
troriclebatroricleba
467
467
add a comment |
add a comment |
0
That response is not valid javascript and the reason is pretty simple. When you cast a Ruby hash to a string the result is not valid JS:
irb(main):001:0> { :foo => 'bar'}.to_s
=> "{:foo=>"bar"}"
Instead you need to encode it as JSON.
irb(main):003:0> { :foo => 'bar'}.to_json
=> "{"foo":"bar"}"
Due to quoting issues is easier done if you actually create a view instead of rendering inline:
ancestors.add( <%= elements.to_json %> );
console.log('Hello');
answered Nov 25 '18 at 18:05
maxmax
45.7k859104
add a comment |
0
That response is not valid javascript and the reason is pretty simple. When you cast a Ruby hash to a string the result is not valid JS:
irb(main):001:0> { :foo => 'bar'}.to_s
=> "{:foo=>"bar"}"
Instead you need to encode it as JSON.
irb(main):003:0> { :foo => 'bar'}.to_json
=> "{"foo":"bar"}"
Due to quoting issues is easier done if you actually create a view instead of rendering inline:
ancestors.add( <%= elements.to_json %> );
console.log('Hello');
answered Nov 25 '18 at 18:05
maxmax
45.7k859104
add a comment |
0
0
0
That response is not valid javascript and the reason is pretty simple. When you cast a Ruby hash to a string the result is not valid JS:
irb(main):001:0> { :foo => 'bar'}.to_s
=> "{:foo=>"bar"}"
Instead you need to encode it as JSON.
irb(main):003:0> { :foo => 'bar'}.to_json
=> "{"foo":"bar"}"
Due to quoting issues is easier done if you actually create a view instead of rendering inline:
ancestors.add( <%= elements.to_json %> );
console.log('Hello');
answered Nov 25 '18 at 18:05
maxmax
45.7k859104
That response is not valid javascript and the reason is pretty simple. When you cast a Ruby hash to a string the result is not valid JS:
irb(main):001:0> { :foo => 'bar'}.to_s
=> "{:foo=>"bar"}"
Instead you need to encode it as JSON.
irb(main):003:0> { :foo => 'bar'}.to_json
=> "{"foo":"bar"}"
Due to quoting issues is easier done if you actually create a view instead of rendering inline:
ancestors.add( <%= elements.to_json %> );
console.log('Hello');
answered Nov 25 '18 at 18:05
maxmax
45.7k859104
answered Nov 25 '18 at 18:05
maxmax
45.7k859104
answered Nov 25 '18 at 18:05
maxmax
45.7k859104
answered Nov 25 '18 at 18:05
maxmax
45.7k859104
45.7k859104
add a comment |
add a comment |
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What was the rendered response there? (you can find out in browser's network tab)
– Sergio Tulentsev
Nov 25 '18 at 16:46
Do you have to wrap it in script tags maybe?
– unflores
Nov 25 '18 at 16:55
@SergioTulentsev I added it to the question.
– troricleba
Nov 25 '18 at 16:56
@unflores No, this worked with a simpler script (that just reloaded the site) without a script tag.
– troricleba
Nov 25 '18 at 16:57