Re: [haml] Ruby interpolation inside :javascript filter
Yes, good idea, that works, except for the error message "illegal nesting:
nesting within plain text is illegal". This refers to the indentation
within the js code.
I have ended up with the Ruby code under %script and js code under
:javascript. Not clean, but a workable interim step. I'll definitely clean
this up when I can get some jasmine tests running.
Many thanks for your assistance, Duncan.
Les
On Tuesday, May 21, 2013 11:12:42 AM UTC-7, Duncan Beevers wrote:
>
> Well, if the old code works and you're just trying to go from erb->haml, I
> wouldn't use the `javascript:` filter.
>
> Instead, just translate the tags to haml and treat the javascript like
> text. Erb interpolation sigils get swapped out for ruby string
> interpolation sigils, block is automatically closed.
>
> %script
> var departments = new Object();
> - @faculties.each do |fac|
> departments['#{fac.id}']= new Object();
>
>
>
> On Tue, May 21, 2013 at 1:02 PM, Les Nightingill
>
> > wrote:
>
>> Yes, you're right, Duncan, your previous code does achieve the desired
>> outcome. Thanks for that.
>>
>> What I posted, though, is a simplified version of the problem. And the js
>> here does not have tests (yet), so I'm trying to take very small steps to
>> get green tests. I'm curious if you know a way to directly translate the
>> erb/js script snippet into haml? If not, I'll follow your suggestion.
>>
>> The problem with poorly tested legacy code is you sometimes have to live
>> with suboptimal architecture for a while until you can get a good test
>> suite in place!
>>
>> Thanks for your help
>>
>> Les
>>
>> On Tuesday, May 21, 2013 10:24:49 AM UTC-7, Duncan Beevers wrote:
>>
>>> The code I posted before should do that. The inject call does the same
>>> object initialization as the javascript you originally posted.
>>>
>>> To be clear, the old haml generated client-side code that looked like
>>> this:
>>>
>>> var departments = new Object();
>>> departments[9] = new Object();
>>> departments[67] = new Object();
>>> ...
>>>
>>>
>>> After this code was run, the resultant `departments` object would look
>>> like this:
>>>
>>> departments = { 9: {}, 67: {} };
>>>
>>> The inject code I provided does the same thing except it bypasses
>>> generation of the client-side javascript and instead generates the
>>> resultant object as a JavaScript object literal. The new code would look
>>> like this:
>>>
>>>
>>> var departments = { 9: {}, 67: {} };
>>> ...
>>>
>>>
>>>
>>>
>>> On Tue, May 21, 2013 at 12:00 PM, Les Nightingill
>>> wrote:
>>>
Thanks for your suggestions Duncan.
I would most definitely be happier mapping the Ruby variables to JSON
in the controller. But I'm in the middle of a large Rails upgrade and I'm
hoping to defer such refactoring improvements, at least until I get this
view basically working and (important) get the tests all green. My first
step is the conversion to haml.
So... given that it's a suboptimal architecture, how can I take this
working erb:
var departments = new Object()
<% @faculties.each do |fac| %>
departments['<%= fac.id -%>']= new Object()
<% end %>
...
and convert it to haml?
On Tuesday, May 21, 2013 9:38:38 AM UTC-7, Duncan Beevers wrote:
> You might be happier using Ruby to map your data to JSON, and then
> feeding that to your JavaScript, rather than using Ruby to dynamically
> generate JavaScript.
>
> For example, if you wanted to map the data directly in the view, could
> do so like this.
>
> - mapped_faculties = @faculties.inject({}) { |a, fac| a[fac.id] = {} }
> :javascript
> var departments = #{mapped_faculties.to_json};
>
> In general, I would recommend doing these types of transformations in
> the controller rather than in the view itself, but the principle is the
> same.
>
>
> On Tue, May 21, 2013 at 11:29 AM, Duncan Beevers wrote:
>
>> You're in a javascript filter. The code that you think is iterating
>> through @faculties is actually just being inlined as javascript into a
>> script tag.
>>
>>
>> On Tue, May 21, 2013 at 11:22 AM, Les Nightingill <
>> codeh...@comcast.net> wrote:
>>
>>> I have this in a rails view file:
>>>
>>> ...
>>> :javascript
>>> var departments = new Object()
>>> - @faculties.each do |fac|
>>> departments['#{ fac.id }']= new Object()
>>>
>>> And the error message I get is:
>>>
>>> undefined local variable or method `fac' for
>>> #<#:**0x**01074bb420>
>>>
>>> I'm clearly missing something very basic. Can anyone see what the
>>> problem is, please. Thanks in advance.
>>>
>>> Les
>>>
>>> --
>>> You received this message because you are subscribed to the Google
>>> Groups "Haml" group.
>>> To unsubscribe from thi
Re: [haml] Ruby interpolation inside :javascript filter
Well, if the old code works and you're just trying to go from erb->haml, I
wouldn't use the `javascript:` filter.
Instead, just translate the tags to haml and treat the javascript like
text. Erb interpolation sigils get swapped out for ruby string
interpolation sigils, block is automatically closed.
%script
var departments = new Object();
- @faculties.each do |fac|
departments['#{fac.id}']= new Object();
On Tue, May 21, 2013 at 1:02 PM, Les Nightingill wrote:
> Yes, you're right, Duncan, your previous code does achieve the desired
> outcome. Thanks for that.
>
> What I posted, though, is a simplified version of the problem. And the js
> here does not have tests (yet), so I'm trying to take very small steps to
> get green tests. I'm curious if you know a way to directly translate the
> erb/js script snippet into haml? If not, I'll follow your suggestion.
>
> The problem with poorly tested legacy code is you sometimes have to live
> with suboptimal architecture for a while until you can get a good test
> suite in place!
>
> Thanks for your help
>
> Les
>
> On Tuesday, May 21, 2013 10:24:49 AM UTC-7, Duncan Beevers wrote:
>
>> The code I posted before should do that. The inject call does the same
>> object initialization as the javascript you originally posted.
>>
>> To be clear, the old haml generated client-side code that looked like
>> this:
>>
>> var departments = new Object();
>> departments[9] = new Object();
>> departments[67] = new Object();
>> ...
>>
>>
>> After this code was run, the resultant `departments` object would look
>> like this:
>>
>> departments = { 9: {}, 67: {} };
>>
>> The inject code I provided does the same thing except it bypasses
>> generation of the client-side javascript and instead generates the
>> resultant object as a JavaScript object literal. The new code would look
>> like this:
>>
>>
>> var departments = { 9: {}, 67: {} };
>> ...
>>
>>
>>
>>
>> On Tue, May 21, 2013 at 12:00 PM, Les Nightingill
>> wrote:
>>
>>> Thanks for your suggestions Duncan.
>>>
>>> I would most definitely be happier mapping the Ruby variables to JSON in
>>> the controller. But I'm in the middle of a large Rails upgrade and I'm
>>> hoping to defer such refactoring improvements, at least until I get this
>>> view basically working and (important) get the tests all green. My first
>>> step is the conversion to haml.
>>>
>>> So... given that it's a suboptimal architecture, how can I take this
>>> working erb:
>>>
>>>
>>> var departments = new Object()
>>> <% @faculties.each do |fac| %>
>>> departments['<%= fac.id -%>']= new Object()
>>> <% end %>
>>> ...
>>>
>>>
>>> and convert it to haml?
>>>
>>>
>>> On Tuesday, May 21, 2013 9:38:38 AM UTC-7, Duncan Beevers wrote:
>>>
You might be happier using Ruby to map your data to JSON, and then
feeding that to your JavaScript, rather than using Ruby to dynamically
generate JavaScript.
For example, if you wanted to map the data directly in the view, could
do so like this.
- mapped_faculties = @faculties.inject({}) { |a, fac| a[fac.id] = {} }
:javascript
var departments = #{mapped_faculties.to_json};
In general, I would recommend doing these types of transformations in
the controller rather than in the view itself, but the principle is the
same.
On Tue, May 21, 2013 at 11:29 AM, Duncan Beevers wrote:
> You're in a javascript filter. The code that you think is iterating
> through @faculties is actually just being inlined as javascript into a
> script tag.
>
>
> On Tue, May 21, 2013 at 11:22 AM, Les Nightingill <
> codeh...@comcast.net> wrote:
>
>> I have this in a rails view file:
>>
>> ...
>> :javascript
>> var departments = new Object()
>> - @faculties.each do |fac|
>> departments['#{ fac.id }']= new Object()
>>
>> And the error message I get is:
>>
>> undefined local variable or method `fac' for
>> #<#:**0x**01074bb420>
>>
>> I'm clearly missing something very basic. Can anyone see what the
>> problem is, please. Thanks in advance.
>>
>> Les
>>
>> --
>> You received this message because you are subscribed to the Google
>> Groups "Haml" group.
>> To unsubscribe from this group and stop receiving emails from it,
>> send an email to haml+uns...@googlegroups.**com.
>> To post to this group, send email to ha...@googlegroups.com.
>>
>> Visit this group at
>> http://groups.google.com/**group**/haml?hl=en
>> .
>> For more options, visit
>> https://groups.google.com/**grou**ps/opt_out
>> .
>>
>>
>>
>
>
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Re: [haml] Ruby interpolation inside :javascript filter
Yes, you're right, Duncan, your previous code does achieve the desired
outcome. Thanks for that.
What I posted, though, is a simplified version of the problem. And the js
here does not have tests (yet), so I'm trying to take very small steps to
get green tests. I'm curious if you know a way to directly translate the
erb/js script snippet into haml? If not, I'll follow your suggestion.
The problem with poorly tested legacy code is you sometimes have to live
with suboptimal architecture for a while until you can get a good test
suite in place!
Thanks for your help
Les
On Tuesday, May 21, 2013 10:24:49 AM UTC-7, Duncan Beevers wrote:
>
> The code I posted before should do that. The inject call does the same
> object initialization as the javascript you originally posted.
>
> To be clear, the old haml generated client-side code that looked like this:
>
> var departments = new Object();
> departments[9] = new Object();
> departments[67] = new Object();
> ...
>
>
> After this code was run, the resultant `departments` object would look
> like this:
>
> departments = { 9: {}, 67: {} };
>
> The inject code I provided does the same thing except it bypasses
> generation of the client-side javascript and instead generates the
> resultant object as a JavaScript object literal. The new code would look
> like this:
>
>
> var departments = { 9: {}, 67: {} };
> ...
>
>
>
>
> On Tue, May 21, 2013 at 12:00 PM, Les Nightingill
>
> > wrote:
>
>> Thanks for your suggestions Duncan.
>>
>> I would most definitely be happier mapping the Ruby variables to JSON in
>> the controller. But I'm in the middle of a large Rails upgrade and I'm
>> hoping to defer such refactoring improvements, at least until I get this
>> view basically working and (important) get the tests all green. My first
>> step is the conversion to haml.
>>
>> So... given that it's a suboptimal architecture, how can I take this
>> working erb:
>>
>>
>> var departments = new Object()
>> <% @faculties.each do |fac| %>
>> departments['<%= fac.id -%>']= new Object()
>> <% end %>
>> ...
>>
>>
>> and convert it to haml?
>>
>>
>> On Tuesday, May 21, 2013 9:38:38 AM UTC-7, Duncan Beevers wrote:
>>
>>> You might be happier using Ruby to map your data to JSON, and then
>>> feeding that to your JavaScript, rather than using Ruby to dynamically
>>> generate JavaScript.
>>>
>>> For example, if you wanted to map the data directly in the view, could
>>> do so like this.
>>>
>>> - mapped_faculties = @faculties.inject({}) { |a, fac| a[fac.id] = {} }
>>> :javascript
>>> var departments = #{mapped_faculties.to_json};
>>>
>>> In general, I would recommend doing these types of transformations in
>>> the controller rather than in the view itself, but the principle is the
>>> same.
>>>
>>>
>>> On Tue, May 21, 2013 at 11:29 AM, Duncan Beevers wrote:
>>>
You're in a javascript filter. The code that you think is iterating
through @faculties is actually just being inlined as javascript into a
script tag.
On Tue, May 21, 2013 at 11:22 AM, Les Nightingill >>> > wrote:
> I have this in a rails view file:
>
> ...
> :javascript
> var departments = new Object()
> - @faculties.each do |fac|
> departments['#{ fac.id }']= new Object()
>
> And the error message I get is:
>
> undefined local variable or method `fac' for
> #<#:**0x01074bb420>
>
> I'm clearly missing something very basic. Can anyone see what the
> problem is, please. Thanks in advance.
>
> Les
>
> --
> You received this message because you are subscribed to the Google
> Groups "Haml" group.
> To unsubscribe from this group and stop receiving emails from it, send
> an email to haml+uns...@googlegroups.**com.
> To post to this group, send email to ha...@googlegroups.com.
>
> Visit this group at
> http://groups.google.com/**group/haml?hl=en
> .
> For more options, visit
> https://groups.google.com/**groups/opt_out
> .
>
>
>
>>> --
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>>
>>
>>
>
>
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Re: [haml] Ruby interpolation inside :javascript filter
The code I posted before should do that. The inject call does the same
object initialization as the javascript you originally posted.
To be clear, the old haml generated client-side code that looked like this:
var departments = new Object();
departments[9] = new Object();
departments[67] = new Object();
...
After this code was run, the resultant `departments` object would look like
this:
departments = { 9: {}, 67: {} };
The inject code I provided does the same thing except it bypasses
generation of the client-side javascript and instead generates the
resultant object as a JavaScript object literal. The new code would look
like this:
var departments = { 9: {}, 67: {} };
...
On Tue, May 21, 2013 at 12:00 PM, Les Nightingill wrote:
> Thanks for your suggestions Duncan.
>
> I would most definitely be happier mapping the Ruby variables to JSON in
> the controller. But I'm in the middle of a large Rails upgrade and I'm
> hoping to defer such refactoring improvements, at least until I get this
> view basically working and (important) get the tests all green. My first
> step is the conversion to haml.
>
> So... given that it's a suboptimal architecture, how can I take this
> working erb:
>
>
> var departments = new Object()
> <% @faculties.each do |fac| %>
> departments['<%= fac.id -%>']= new Object()
> <% end %>
> ...
>
>
> and convert it to haml?
>
>
> On Tuesday, May 21, 2013 9:38:38 AM UTC-7, Duncan Beevers wrote:
>
>> You might be happier using Ruby to map your data to JSON, and then
>> feeding that to your JavaScript, rather than using Ruby to dynamically
>> generate JavaScript.
>>
>> For example, if you wanted to map the data directly in the view, could do
>> so like this.
>>
>> - mapped_faculties = @faculties.inject({}) { |a, fac| a[fac.id] = {} }
>> :javascript
>> var departments = #{mapped_faculties.to_json};
>>
>> In general, I would recommend doing these types of transformations in the
>> controller rather than in the view itself, but the principle is the same.
>>
>>
>> On Tue, May 21, 2013 at 11:29 AM, Duncan Beevers wrote:
>>
>>> You're in a javascript filter. The code that you think is iterating
>>> through @faculties is actually just being inlined as javascript into a
>>> script tag.
>>>
>>>
>>> On Tue, May 21, 2013 at 11:22 AM, Les Nightingill
>>> wrote:
>>>
I have this in a rails view file:
...
:javascript
var departments = new Object()
- @faculties.each do |fac|
departments['#{ fac.id }']= new Object()
And the error message I get is:
undefined local variable or method `fac' for
#<#:**0x01074bb420>
I'm clearly missing something very basic. Can anyone see what the
problem is, please. Thanks in advance.
Les
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.
>>>
>>>
>> --
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Re: [haml] Ruby interpolation inside :javascript filter
Thanks for your suggestions Duncan.
I would most definitely be happier mapping the Ruby variables to JSON in
the controller. But I'm in the middle of a large Rails upgrade and I'm
hoping to defer such refactoring improvements, at least until I get this
view basically working and (important) get the tests all green. My first
step is the conversion to haml.
So... given that it's a suboptimal architecture, how can I take this
working erb:
var departments = new Object()
<% @faculties.each do |fac| %>
departments['<%= fac.id -%>']= new Object()
<% end %>
...
and convert it to haml?
On Tuesday, May 21, 2013 9:38:38 AM UTC-7, Duncan Beevers wrote:
>
> You might be happier using Ruby to map your data to JSON, and then feeding
> that to your JavaScript, rather than using Ruby to dynamically generate
> JavaScript.
>
> For example, if you wanted to map the data directly in the view, could do
> so like this.
>
> - mapped_faculties = @faculties.inject({}) { |a, fac| a[fac.id] = {} }
> :javascript
> var departments = #{mapped_faculties.to_json};
>
> In general, I would recommend doing these types of transformations in the
> controller rather than in the view itself, but the principle is the same.
>
>
> On Tue, May 21, 2013 at 11:29 AM, Duncan Beevers
>
> > wrote:
>
>> You're in a javascript filter. The code that you think is iterating
>> through @faculties is actually just being inlined as javascript into a
>> script tag.
>>
>>
>> On Tue, May 21, 2013 at 11:22 AM, Les Nightingill
>>
>> > wrote:
>>
>>> I have this in a rails view file:
>>>
>>> ...
>>> :javascript
>>> var departments = new Object()
>>> - @faculties.each do |fac|
>>> departments['#{ fac.id }']= new Object()
>>>
>>> And the error message I get is:
>>>
>>> undefined local variable or method `fac' for
>>> #<#:0x01074bb420>
>>>
>>> I'm clearly missing something very basic. Can anyone see what the
>>> problem is, please. Thanks in advance.
>>>
>>> Les
>>>
>>> --
>>> You received this message because you are subscribed to the Google
>>> Groups "Haml" group.
>>> To unsubscribe from this group and stop receiving emails from it, send
>>> an email to haml+uns...@googlegroups.com .
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>>> .
>>> Visit this group at http://groups.google.com/group/haml?hl=en.
>>> For more options, visit https://groups.google.com/groups/opt_out.
>>>
>>>
>>>
>>
>>
>
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Re: [haml] Ruby interpolation inside :javascript filter
Oh, forgot to hand the accumulator back in that inject call. Should look
like:
mapped_faculties = @faculties.inject({}) { |a, fac| a[fac.id] = {}; a }
On Tue, May 21, 2013 at 11:38 AM, Duncan Beevers wrote:
> You might be happier using Ruby to map your data to JSON, and then feeding
> that to your JavaScript, rather than using Ruby to dynamically generate
> JavaScript.
>
> For example, if you wanted to map the data directly in the view, could do
> so like this.
>
> - mapped_faculties = @faculties.inject({}) { |a, fac| a[fac.id] = {} }
> :javascript
> var departments = #{mapped_faculties.to_json};
>
> In general, I would recommend doing these types of transformations in the
> controller rather than in the view itself, but the principle is the same.
>
>
> On Tue, May 21, 2013 at 11:29 AM, Duncan Beevers wrote:
>
>> You're in a javascript filter. The code that you think is iterating
>> through @faculties is actually just being inlined as javascript into a
>> script tag.
>>
>>
>> On Tue, May 21, 2013 at 11:22 AM, Les Nightingill > > wrote:
>>
>>> I have this in a rails view file:
>>>
>>> ...
>>> :javascript
>>> var departments = new Object()
>>> - @faculties.each do |fac|
>>> departments['#{ fac.id }']= new Object()
>>>
>>> And the error message I get is:
>>>
>>> undefined local variable or method `fac' for
>>> #<#:0x01074bb420>
>>>
>>> I'm clearly missing something very basic. Can anyone see what the
>>> problem is, please. Thanks in advance.
>>>
>>> Les
>>>
>>> --
>>> You received this message because you are subscribed to the Google
>>> Groups "Haml" group.
>>> To unsubscribe from this group and stop receiving emails from it, send
>>> an email to haml+unsubscr...@googlegroups.com.
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>>> For more options, visit https://groups.google.com/groups/opt_out.
>>>
>>>
>>>
>>
>>
>
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Re: [haml] Ruby interpolation inside :javascript filter
You might be happier using Ruby to map your data to JSON, and then feeding
that to your JavaScript, rather than using Ruby to dynamically generate
JavaScript.
For example, if you wanted to map the data directly in the view, could do
so like this.
- mapped_faculties = @faculties.inject({}) { |a, fac| a[fac.id] = {} }
:javascript
var departments = #{mapped_faculties.to_json};
In general, I would recommend doing these types of transformations in the
controller rather than in the view itself, but the principle is the same.
On Tue, May 21, 2013 at 11:29 AM, Duncan Beevers wrote:
> You're in a javascript filter. The code that you think is iterating
> through @faculties is actually just being inlined as javascript into a
> script tag.
>
>
> On Tue, May 21, 2013 at 11:22 AM, Les Nightingill
> wrote:
>
>> I have this in a rails view file:
>>
>> ...
>> :javascript
>> var departments = new Object()
>> - @faculties.each do |fac|
>> departments['#{ fac.id }']= new Object()
>>
>> And the error message I get is:
>>
>> undefined local variable or method `fac' for
>> #<#:0x01074bb420>
>>
>> I'm clearly missing something very basic. Can anyone see what the problem
>> is, please. Thanks in advance.
>>
>> Les
>>
>> --
>> You received this message because you are subscribed to the Google Groups
>> "Haml" group.
>> To unsubscribe from this group and stop receiving emails from it, send an
>> email to haml+unsubscr...@googlegroups.com.
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>> Visit this group at http://groups.google.com/group/haml?hl=en.
>> For more options, visit https://groups.google.com/groups/opt_out.
>>
>>
>>
>
>
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Re: [haml] Ruby interpolation inside :javascript filter
You're in a javascript filter. The code that you think is iterating through
@faculties is actually just being inlined as javascript into a script tag.
On Tue, May 21, 2013 at 11:22 AM, Les Nightingill wrote:
> I have this in a rails view file:
>
> ...
> :javascript
> var departments = new Object()
> - @faculties.each do |fac|
> departments['#{ fac.id }']= new Object()
>
> And the error message I get is:
>
> undefined local variable or method `fac' for
> #<#:0x01074bb420>
>
> I'm clearly missing something very basic. Can anyone see what the problem
> is, please. Thanks in advance.
>
> Les
>
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[haml] Ruby interpolation inside :javascript filter
I have this in a rails view file:
...
:javascript
var departments = new Object()
- @faculties.each do |fac|
departments['#{ fac.id }']= new Object()
And the error message I get is:
undefined local variable or method `fac' for
#<#:0x01074bb420>
I'm clearly missing something very basic. Can anyone see what the problem
is, please. Thanks in advance.
Les
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Re: [haml] Haml 4.0.3 has been released
Thanks Norman. On Tue, May 21, 2013 at 9:56 AM, Norman Clarke wrote: > Hi all, > > Haml 4.0.3 has been released! > > The sha1 for the Haml 4.0.3 gem > is: e1c9efff4f7e24ec2775089c51d8d57866bfe00c > > This release fixes some minor issues with Erubis and Tilt, and improves > the documentation. > > You can find the full changelog here: > > http://haml.info/docs/yardoc/file.CHANGELOG.html > > and a full diff from the previous release here: > > https://github.com/haml/haml/compare/4.0.2...4.0.3 > > Regards, > > Norman > > -- > You received this message because you are subscribed to the Google Groups > "Haml" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to haml+unsubscr...@googlegroups.com. > To post to this group, send email to haml@googlegroups.com. > Visit this group at http://groups.google.com/group/haml?hl=en. > For more options, visit https://groups.google.com/groups/opt_out. > > > -- You received this message because you are subscribed to the Google Groups "Haml" group. To unsubscribe from this group and stop receiving emails from it, send an email to haml+unsubscr...@googlegroups.com. To post to this group, send email to haml@googlegroups.com. Visit this group at http://groups.google.com/group/haml?hl=en. For more options, visit https://groups.google.com/groups/opt_out.
[haml] Haml 4.0.3 has been released
Hi all, Haml 4.0.3 has been released! The sha1 for the Haml 4.0.3 gem is: e1c9efff4f7e24ec2775089c51d8d57866bfe00c This release fixes some minor issues with Erubis and Tilt, and improves the documentation. You can find the full changelog here: http://haml.info/docs/yardoc/file.CHANGELOG.html and a full diff from the previous release here: https://github.com/haml/haml/compare/4.0.2...4.0.3 Regards, Norman -- You received this message because you are subscribed to the Google Groups "Haml" group. To unsubscribe from this group and stop receiving emails from it, send an email to haml+unsubscr...@googlegroups.com. To post to this group, send email to haml@googlegroups.com. Visit this group at http://groups.google.com/group/haml?hl=en. For more options, visit https://groups.google.com/groups/opt_out.
