Hi Everyone:

Can anyone help me on this. Getting the following error:

Showing app/views/admin/list_custompage.rhtml where line #11 raised:

You have a nil object when you didn't expect it!
You might have expected an instance of Array.
The error occured while evaluating nil.each

Extracted source (around line #11):

8: </table>
9: <strong>Custom Pages</strong>
10: <table width="100%" border="0" cellspacing="0" cellpadding="0">
11: <%for customhtml in @customhtml%>
12: <tr class="<%= cycle('list-line-odd', 'list-line-even') %>">
13: <td align="left" valign="middle" width="449" >
14: <%=customhtml.name%></td>



Here is the code section in \app\controllers\admin_controller.rb:

def edit_custompage
@customhtml = customhtml.find(params[:id])
end

def update_custompage
@customhtml = customhtml.find(params[:id])
if @customhtml.update_attributes(params[:customhtml])
flash[:notice] = 'Custom page successfully updated.'
render :action => 'edit_custompage', :id => @products
else
render :action => 'edit_custompage'
end
end


def create_custompage
@customhtml = customhtml.new(params[:custom_html])
if @customhtml.save
flash[:notice] = 'Custom page was successfully created.'
redirect_to :action => 'list_custompage'
else
render :action => 'new_custompage'
end

def new_custompage
@customhtml = customhtml.find_all
end

def destroy_custompage
customhtml.find(params[:id]).destroy
redirect_to :action => 'list_custompage'
end


def list_custompage
@customhtml_pages, @customhtml = paginate :customhtml, :per_page => 10
end


Here is the app\views\admin\list_custompage.rhtml:

<div align="left">
<table align="center" width="98%" cellspacing="0" cellpadding="0" ><tr><td colspan="3" valign="TOP"><div align="left">
<table width="100%" border="0" cellspacing="0" cellpadding="0">
<tr>
<td ><h2>Custom Page Editor </h2></td>
</tr>
</table>
<strong>Custom Pages</strong>
<table width="100%" border="0" cellspacing="0" cellpadding="0">
<%for customhtml in @customhtml%>
<tr class="<%= cycle('list-line-odd', 'list-line-even') %>">
<td align="left" valign="middle" width="449" >
<%=customhtml.name%></td>
<td align="RIGHT" width="50" ><%= link_to 'Edit', :action => 'edit_custompage', :id => custompage%></td>
<td align="RIGHT" width="51" ><%= link_to 'Delete', { :action => 'destroy_custompage', :id => custompage }, :confirm => "Are you sure?", :post => true %></td>
</tr>
<% end %>
</table>
<%= if @customhtml_pages.current.previous
link_to("Previous page", { :page => @customhtml_pages.current.previous })
end
%> <%= if @categories_pages.current.next
link_to("Next page", { :page => @customhtml_pages.current.next })
end
%><br />
<%= button_to 'Add Custom Page', :action => 'new_custompage' %> </div></td>
</tr>
</table>
</div>

Rob,
in Rails models are capitals, so in order to address your concerns, change customhtml to Customhtml. I did this too when I was first learning rails.

Here is the error :

SyntaxError in Admin#list_custompage
Showing app/views/admin/list_custompage.rhtml where line #11 raised:

compile error
./script/../config/../app/views/admin/list_custompage.rhtml:11: dynamic constant assignment
_erbout.concat " "; for Customhtml in @Customhtml; _erbout.concat "\n"
^

Extracted source (around line #11):

8: </table>
9: <strong>Custom Pages</strong>
10: <table width="100%" border="0" cellspacing="0" cellpadding="0">
11: <%for Customhtml in @Customhtml%>
12: <tr class="<%= cycle('list-line-odd', 'list-line-even') %>">
13: <td align="left" valign="middle" width="449" >
14: <%=Customhtml.name%></td>



here is the code for the controller:


def edit_custompage
@Customhtml = Customhtml.find(params[:id])
end

def update_custompage
@Customhtml = Customhtml.find(params[:id])
if @Customhtml.update_attributes(params[:Customhtml])
flash[:notice] = 'Custom page successfully updated.'
render :action => 'edit_custompage', :id => @products
else
render :action => 'edit_custompage'
end
end


def create_custompage
@Customhtml = Customhtml.new(params[:custom_html])
if @Customhtml.save
flash[:notice] = 'Custom page was successfully created.'
redirect_to :action => 'list_custompage'
else
render :action => 'new_custompage'
end

def new_custompage
@Customhtml = Customhtml.find_all
end

def destroy_custompage
Customhtml.find(params[:id]).destroy
redirect_to :action => 'list_custompage'
end


def list_custompage
@Customhtml_pages, @Customhtml = paginate :Customhtml, :per_page => 10
end



here is the list_custompage.rhtml:


<div align="left">
<table align="center" width="98%" cellspacing="0" cellpadding="0" ><tr><td colspan="3" valign="TOP"><div align="left">
<table width="100%" border="0" cellspacing="0" cellpadding="0">
<tr>
<td ><h2>Custom Page Editor </h2></td>
</tr>
</table>
<strong>Custom Pages</strong>
<table width="100%" border="0" cellspacing="0" cellpadding="0">
<%for Customhtml in @Customhtml%>
<tr class="<%= cycle('list-line-odd', 'list-line-even') %>">
<td align="left" valign="middle" width="449" >
<%=Customhtml.name%></td>
<td align="RIGHT" width="50" ><%= link_to 'Edit', :action => 'edit_custompage', :id => custompage%></td>
<td align="RIGHT" width="51" ><%= link_to 'Delete', { :action => 'destroy_custompage', :id => custompage }, :confirm => "Are you sure?", :post => true %></td>
</tr>
<% end %>
</table>
<%= if @Customhtml_pages.current.previous
link_to("Previous page", { :page => @Customhtml_pages.current.previous })
end
%> <%= if @categories_pages.current.next
link_to("Next page", { :page => @Customhtml_pages.current.next })
end
%><br />
<%= button_to 'Add Custom Page', :action => 'new_custompage' %> </div></td>
</tr>
</table>
</div>

Thank you so much for your help.

Rob, Rails has weird notation conventions. A variable cannot start with a capital unless it is a class. In order to address your concerns, I would suggest replacing @Customhtml with @customhtml, but retaining Customhtml as the model. Unfortunately, as Paul mentioned, Rails is flexible in terms of conventions, but not this one unless you edit the source.