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[engines guide] Rather than calling name, require a to_s method to be defined on the 'User' class

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Ryan Bigg
2011-10-20 08:46:20 +11:00
parent 9694ca1a3b
commit 8ede74e73a
1 changed files with 17 additions and 2 deletions
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19
railties/guides/source/engines.textile
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@@ -476,11 +476,26 @@ Finally, the author's name should be displayed on the post's page. Add this code
<erb>
<p>
<b>Author:</b>
<%= @post.author.name %>
<%= @post.author %>
</p>
</erb>
NOTE: For posts created previously, this will break the +show+ page for them. We recommend deleting these posts and starting again, or manually assigning an author using +rails c+.
WARNING: For posts created previously, this will break the +show+ page for them. We recommend deleting these posts and starting again, or manually assigning an author using +rails c+.
By outputting +@post.author+ using the +<%=+ tag the +to_s+ method will be called on the object. By default, this will look quite ugly:
<text>
#<User:0x00000100ccb3b0>
</text>
This is undesirable and it would be much better to have the user's name there. To do this, add a +to_s+ method to the +User+ class within the application:
<ruby>
def to_s
name
</ruby>
Now instead of the ugly Ruby object output the author's name will be displayed.
h4. Configuring an engine