How to Upload Image through RoR?

Rails
1

Hi,

I have one form , in which I am using file_field teg for input image
file as follows.

<%= file_field(“store”, “picture”) %>

Tha Actual fileld name of my Image field in Database is “store_photo”
with datatype LargeBLOB.
& Inside my Store Model I have specified “def picture” as follows:-

def picture=(picture_field)
self.store_photo = picture_field.read
end

Now When I am trying to Uplaod file by submitting form I am getting
error like:-

undefined method `read’ for “logo.gif”:String

Why I am getting this error? PLease tell me how to upload file into my
database from a form & also if later I want to retrieve that image from
database & display it on page how to do it?

Thanx.
Prash

2

Prashant T. wrote:

Why I am getting this error? PLease tell me how to upload file into my
database from a form & also if later I want to retrieve that image from
database & display it on page how to do it?

Hi Prashant,

I’m sorry to be the first to do this, but I’m calling Help Vampire. <
slash7 with Amy Hoy » Blog Archive » Help Vampires: A Spotter’s Guide >

Have you looked at the documentation for file_field ? It looks like
what you think is the object is actually just the filename. Perhaps
file_field documentation can help you diagnose this problem.

You might also consider whether any changes need to be made to the form
itself to facilitate a multiple part submission, file data and params.

A.

3

Take a look at file_column

Should do what you want

http://wiki.rubyonrails.org/rails/pages/File+Column+Plugin

4

Charlie B. wrote:

This is exactly why the “Help Vampire” Post pissed me off so much. It’s
a stupid phrase and should never be used. That post will do more damage
to the community than 1 million “bad” questions.

You may be entirely correct. I hovered a while before sending, not at
all sure whether to do it or not. Apologies if it offended anyone, but
I feel the rest of the mail stands.

A.

5

This is exactly why the “Help Vampire” Post pissed me off so much. It’s
a stupid phrase and should never be used. That post will do more damage
to the community than 1 million “bad” questions.

6

Alan F. wrote:

Charlie B. wrote:

This is exactly why the “Help Vampire” Post pissed me off so much. It’s
a stupid phrase and should never be used. That post will do more damage
to the community than 1 million “bad” questions.

You may be entirely correct. I hovered a while before sending, not at
all sure whether to do it or not. Apologies if it offended anyone, but
I feel the rest of the mail stands.

A.

And FWIW, I agree it’s a stupid name for a very real thing.

A.

7

I agree with the principle, and I agree that it is real. As a reforming
.NET
user, I can attest to the pitiful state of many of the various
communities
because of this very real problem. Nothing is more frustrating than a
list
being overwhelmed with questions from those who won’t take the time to
do a
tiny bit of research before asking someone else to do it for them.

A community is about give AND take. If you take too much, people ignore
you,
and if everyone only takes, then the community disintegrates.

Matt