Agile web Development with Rails section 9.3

[Angel Dinar]

Hello
I am reading Agile Web Development with rails (third addition).
And I need some help with it.
I have reached chapter 9.3

when I press on the add to cart button I get an error message.
a real ugly one.

eventually, I downloaded the PDF version and copied the content of the
files but it did not help.

I have looked but could not find the problem.
Please give me a hand.
Thanks
Angel



try {
Element.update("cart", "\n\n<div class=\"cart-title\">Your
Cart</div>\n<table>\n \n\n\n<!-- START_HIGHLIGHT -->\n\n <tr
id=\"current_item\"> \n\n<!-- #END_HIGHLIGHT -->\n\n\n\n\n<tr>\n
<td>7&times;</td>\n <td>Pragmatic Project Automation</td>\n <td
class=\"item-price\">$209.65</td>\n</tr>\n\n\n <tr
class=\"total-line\">\n <td colspan=\"2\">Total</td>\n <td
class=\"total-cell\">$209.65</td>\n </tr>\n\n</table>\n\n<form
method=\"post\" action=\"/store/empty_cart\"
class=\"button-to\"><div><input type=\"submit\" value=\"Empty cart\"
/><input name=\"authenticity_token\" type=\"hidden\"
value=\"6ZdrTVjPgu0Lls4YyuTXbg1an5X/KKNZJKgDfruU6Qo=\"
/></div></form>\n");
$("current_item").visualEffect("highlight",
{"endcolor":"#114411","startcolor":"#88ff88"});
} catch (e) { alert('RJS error:\n\n' + e.toString());
alert('Element.update(\"cart\", \"\\n\\n<div
class=\\\"cart-title\\\">Your Cart</div>\\n<table>\\n \\n\\n\\n<!--
START_HIGHLIGHT -->\\n\\n <tr id=\\\"current_item\\\"> \\n\\n<!--
#END_HIGHLIGHT -->\\n\\n\\n\\n\\n<tr>\\n <td>7&times;</td>\\n
<td>Pragmatic Project Automation</td>\\n <td
class=\\\"item-price\\\">$209.65</td>\\n</tr>\\n\\n\\n <tr
class=\\\"total-line\\\">\\n <td colspan=\\\"2\\\">Total</td>\\n
<td class=\\\"total-cell\\\">$209.65</td>\\n
</tr>\\n\\n</table>\\n\\n<form method=\\\"post\\\"
action=\\\"/store/empty_cart\\\" class=\\\"button-to\\\"><div><input
type=\\\"submit\\\" value=\\\"Empty cart\\\" /><input
name=\\\"authenticity_token\\\" type=\\\"hidden\\\"
value=\\\"6ZdrTVjPgu0Lls4YyuTXbg1an5X/KKNZJKgDfruU6Qo=\\\"
/></div></form>\\n\");\n$(\"current_item\").visualEffect(\"highlight\",
{\"endcolor\":\"#114411\",\"startcolor\":\"#88ff88\"});'); throw e }

 

[Josh Cheek]

[Note: parts of this message were removed to make it a legal post.]

Hello
I am reading Agile Web Development with rails (third addition).
And I need some help with it.
I have reached chapter 9.3

when I press on the add to cart button I get an error message.
a real ugly one.

eventually, I downloaded the PDF version and copied the content of the
files but it did not help.

I have looked but could not find the problem.
Please give me a hand.
Thanks
Angel



try {
Element.update("cart", "\n\n<div class=\"cart-title\">Your
Cart</div>\n<table>\n \n\n\n<!-- START_HIGHLIGHT -->\n\n <tr
id=\"current_item\"> \n\n<!-- #END_HIGHLIGHT -->\n\n\n\n\n<tr>\n
<td>7&times;</td>\n <td>Pragmatic Project Automation</td>\n <td
class=\"item-price\">$209.65</td>\n</tr>\n\n\n <tr
class=\"total-line\">\n <td colspan=\"2\">Total</td>\n <td
class=\"total-cell\">$209.65</td>\n </tr>\n\n</table>\n\n<form
method=\"post\" action=\"/store/empty_cart\"
class=\"button-to\"><div><input type=\"submit\" value=\"Empty cart\"
/><input name=\"authenticity_token\" type=\"hidden\"
value=\"6ZdrTVjPgu0Lls4YyuTXbg1an5X/KKNZJKgDfruU6Qo=\"
/></div></form>\n");
$("current_item").visualEffect("highlight",
{"endcolor":"#114411","startcolor":"#88ff88"});
} catch (e) { alert('RJS error:\n\n' + e.toString());
alert('Element.update(\"cart\", \"\\n\\n<div
class=\\\"cart-title\\\">Your Cart</div>\\n<table>\\n \\n\\n\\n<!--
START_HIGHLIGHT -->\\n\\n <tr id=\\\"current_item\\\"> \\n\\n<!--
#END_HIGHLIGHT -->\\n\\n\\n\\n\\n<tr>\\n <td>7&times;</td>\\n
<td>Pragmatic Project Automation</td>\\n <td
class=\\\"item-price\\\">$209.65</td>\\n</tr>\\n\\n\\n <tr
class=\\\"total-line\\\">\\n <td colspan=\\\"2\\\">Total</td>\\n
<td class=\\\"total-cell\\\">$209.65</td>\\n
</tr>\\n\\n</table>\\n\\n<form method=\\\"post\\\"
action=\\\"/store/empty_cart\\\" class=\\\"button-to\\\"><div><input
type=\\\"submit\\\" value=\\\"Empty cart\\\" /><input
name=\\\"authenticity_token\\\" type=\\\"hidden\\\"
value=\\\"6ZdrTVjPgu0Lls4YyuTXbg1an5X/KKNZJKgDfruU6Qo=\\\"
/></div></form>\\n\");\n$(\"current_item\").visualEffect(\"highlight\",
{\"endcolor\":\"#114411\",\"startcolor\":\"#88ff88\"});'); throw e }

Hi, this is a Ruby mailing list (the language Rails was written in), not a
Rails mailing list. You should try a Rails list, you will get much better
help. Especially considering the code you posted looks like JavaScript, not
Ruby.

A few things, though:

1. If you are certain you've done everything correctly, you might check the
errata to see if something in the book isn't right:
http://www.pragprog.com/titles/rails3/errata

2. You said "when I press on the add to cart button I get an error message.
a real ugly one." but you haven't given any information about the error
message. These exist to let you know something is wrong, and where it went
wrong so that you know where to go start troubleshooting. This would be good
information to include, it gives people (and you) an idea where it went
wrong.

 

[Angel Dinar]

Thank you for replying.

the application is written in Ruby.
the error message is something I do not understand.
the link to my files is at:

Download link: http://rapidshare.com/files/389266124/chapter-9.tar.gz

http://localhost:3000/store

I am certain that I did something wrong, I just can't seem to find
what...
the ugly message I got is the code I attached in my first message.

Thanks for your help

 

[Angel Dinar]

Thank you