With the first two the problem might be, that rails/ruby has no idea what 
factory, demo and user are - it thinks that those are methods or variables

<%= link_to "test", "/foo/bar/" %>

works when I tried it

On Thursday, September 18, 2014 11:32:04 PM UTC+2, Paolo Di Pietro wrote:
>
> I tried the following and others, but 
>
> <%= link_to "some text", factory/demo/user/9  %>
> <%= link_to "some text", factories/demo/chat %>
> <%= link_to "some text","/factory/demo" %>
> <%= link_to ("some text","/factory/demo") %>
>
> not clear where  'You don't want to have white space between method name 
> and brackets so either ...."
>
>
> Il giorno giovedì 18 settembre 2014 23:15:54 UTC+2, Colin Law ha scritto:
>>
>> On 18 September 2014 22:04, Paolo Di Pietro <paolodi...@gmail.com> wrote:
>>
>>> Done!
>>>
>>> Then I put 
>>> <%= link_to "some text", /factory/demo/message/1389/ %>
>>> in my .erb file
>>>
>>>
>> I think maybe before worrying about generic routes you need to get to 
>> grips with the basics of ruby and rails.  I suggest you start by working 
>> right through a good tutorial such as railstutorial.org (which is free 
>> to use online).
>>
>> Colin
>>
>>

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