similar to: How to upload only jpeg & gif & png images into public/images using rubyonrails

I used validates_uniqueness_of it is case insensitive, it takes only admin not Admin. So please help me out how to put validates_uniqueness_of as case sensitive Thanks in Advance Surekha.Matte -- Posted via http://www.ruby-forum.com/.

This is probably me having an issue with the mvc way of living.. .I''m used to perl/php scripting... I''ve got a photo blog I''m making... and in past iterations of this website, I''d just name the photos after the id of the entry. For instance: /photos/id.jpg /photos/id_thumb.jpg However, I''m having trouble finding an easy way to do this with rails.

Hi all, Although R seems to have jpeg() and png() functions that converts data into jpeg and png formated files, it doesn't have functions the other way around. Does one of R contributed packages have gif, jpeg and png image readers? I did help.search() but no luck Regards, Jonathan -.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.- r-help mailing list -- Read

Hi all, Roger Peng and Jason Turner's suggestion with ImageMagick seem to be the simplest "dirty" way to get the problem solved. But I ran into yet another interesting but quite round-about way to solve the problem (partially). Through tcltk package, one can read in the gif image with > x <- tkcmd("image", "create", "photo", file=mypic.gif)

Dear R-help I want to display an image file in a new plot frame. SVG is my preferred format, but I can also consider PNG, GIF, JPEG, TIFF, and PPM (from ImageMagick). By way of background (although not material to this posting), the image file is generated by a call to 'dot' (part of the 'Graphviz' suite) after the required .dot file has been produced using hand-crafted R code.

Hi all. This is my first message at R-help...so I'm hoping I have some beginner's luck and get some good help for my problem! FYI I have just started using R recently so my knowledge of R is pretty preliminary. Okay here is what I need help with - I need to know how to use agrep in a for loop. I need to compare elements of a vector of names with other elements of the same vector.

Here''s my problem. I have an ''Item'' model with a date column called "inserted_on" formatted as "yyyy-mm-dd hh:mm:ss:t". I want to find all records that were inserted more than 30 days ago. How would I say that using the Item.find ( :all .....) method? I don''t fully understand the syntax. I tried @result = Item.find( :all, :conditions =>

Hello all, I have a question regarding the security of my new web zine. The idea is that I have editors that can log into the site, and then upload comics in the form of a jpg. The way that I have this set up right now is that the jpg is submitted through a form and then placed into the authors sub directory in public/comics/. The record of the jpg is stored in a pendingcomics table

following the instructions at http://wiki.rubyonrails.com/rails/pages/HowtoUploadFiles, I am able to upload to an explicit and existing directory (i.e. c:\ror\app\public\images\photo.jpg). However, when I try to upload to a folder that does not exist, say, c:\ror\app\public\image\newfolder\photo.jpg, I get the following error: Errno::ENOENT in Images#create No such file or directory -

Hi all In PHP I have a neat function: http://ch2.php.net/function.getimagesize With it I can easily determine the dimensions of an image file. How can I do that in RoR? Thanks for help. Greets, Josh -- Posted via http://www.ruby-forum.com/.

Is the information in http://wiki.rubyonrails.com/rails/show/HowtoUploadFiles on caching images still the best way on how to cache images that are served from the database? I haven''t added time information to my image table yet, and the images are sent after every single page view (even if it''s been downloaded already). Joe

Hi All, I''ve been trying to create an upload form page that will take an uploaded file, and save it to a directory on the server. I''ve tried following a couple of posts on this list, and the HowTo from here: http://wiki.rubyonrails.org/rails/pages/HowtoUploadFiles Here is the code in my view: <%= start_form_tag ( {:action => "upload"}, { :mulipart => true }

Hi, I just took this test on Tickle.com. What''s Your Fame and Fortune? http://web.tickle.com/invite?test=1177&type=t Take it and see how you score. You can see my score at the end. Surekha -------------- next part -------------- An HTML attachment was scrubbed... URL: http://wrath.rubyonrails.org/pipermail/rails/attachments/20060612/8fc88913/attachment.html

Hi, I need that you help me. My principal question is: I have a WinNT Domain, a Samba Server and some users WinNT. I need to available a directory structure in the Samba Server. I need to know if I really need to have a Unix user for each WinNT user that access the structure directory in the Samba Server? Please help me, because I don't find anywhere this information. Thanks... :)

I am generating images via lattice from Frank Harrell's RMS package. These images are characterized by coloured lines and grey-scale confidence intervals. I need to port them to Openoffice/etc, and have tried both png and jpeg (at high quality), but in neither format can I subsequently see the the grey scale confidence intervals. Other than moving to LaTex, does anyone have other

I am having trouble showing the Greek symbol "beta" correctly in the y-axis label of bitmap plots. Specifically, on my system the top of the "beta" symbol is cut off using the following example: file.jpg <- paste(tempfile(), ".jpg", sep = "") jpeg(file.jpg, h = 3, w = 3, units = "in", res = 300, type = "Xlib") boxplot(rnorm(10),

Hello all: After I compile the R-1.7 with the follows in Linux7.3: configure --with-x --with-jpeglib --with-libpng --x-includes=/usr/X11R6/include --x-libraries=/usr/X11R6/lib and make and make install. The R is able to generate PNG/JPEG files from the command line. However, when I put the same commands in a batch file and run: R --gui BATCH R.Batch.file It gave me a error in the

Hi everyone, I've been opening up R 2.0.1 from the dock and then starting the Mac OSX X11 server. After that I call >jpeg("test.jpg",plot(rnorm(10))) and r pops up a quartz window with the appropriate graph in it and puts a file called test.jpg into the HOME which is 0kb in size and is completely empty. There is no error message. I've tried >png("test.png",

Hello All, I am using library "party" and I have found a curious/strange behaviour when trying to save the output of a ctree in a file via jpeg/png command. If you use: ################ library(party) airq <- subset(airquality, !is.na(Ozone)) airct <- ctree(Ozone ~ ., data = airq) plot(airct, terminal_panel = node_boxplot, drop_terminal = FALSE) ############### you get a

Hi, When I want to output a png file, I have the following error message : Error dans X11(paste("jpeg::", quality, ":", filename, sep = ""), width, : inpossible de d?marrer le p?riph?rique JPEG De plus : Warning message: impossible d'ouvrir le fichier JPEG 'Test.jpeg' or in english Error in X11(paste("jpeg::", quality, ":",