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Paperclip::Errors::MissingRequiredValidatorError with Rails 4
...uired to include a content_type validation, a file_name validation, or to explicitly state that they're not going to have either.
Paperclip raises Paperclip::Errors::MissingRequiredValidatorError error if you do not do any of this.
In your case, you can add any of the following line to your Post ...
Eclipse: How do i refresh an entire workspace? F5 doesn't do it
...rent project (or, more specifically, the current selection in the project explorer). I just click somewhere in the project explorer, do Ctrl+A to select all projects and then press F5 to achieve a complete refresh.
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How to paste text to end of every line? Sublime 2
I'm curious if there is a way to paste text to the end of every line in Sublime 2? And conversely, to the beginning of every line.
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Python progression path - From apprentice to guru
...in the lab. I more or less fell in love with the way Python permits me to express beautiful solutions and also with the semantics of the language that allows such a natural flow from thoughts to workable code.
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R: rJava package install failing
...unds great to me, the fact that only so many packages are listed in r-cran-x is why people use the 'regular' R way (install.packages). Moreover, I just took your advise on doing it through cran, which really doesn't help as R 3.x is mainstream now, while packages in r-cran- are apparently before R 3...
Convert Linq Query Result to Dictionary
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@pawan - that doesn't look right. I'd expect var servers = list.Select( s => new { s.ProjectName, Url = "tcp://" + s.BuildMachineName + ":" + s.PortNumber + "/CruiseManager.rem" } ).ToDictionary( s => s.ProjectName, s.Url ); This creates a dictionary keyed ...
jar not loaded. See Servlet Spec 2.3, section 9.7.2. Offending class: javax/servlet/Servlet.class
...mic web project. I have used all Spring libraries in Maven. I created web.xml , but when I start my Tomcat 7 server I am getting the following message:
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How to display the function, procedure, triggers source code in postgresql?
... Nice one :) I suggest using \df to find the name of your function, then \x for expanded output, then \df+ name_of_function
– Sam Watkins
Sep 3 '14 at 7:47
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Install a module using pip for specific python version
... instructions I linked to in my answer; just be sure to use the python2.7 executable when going through those instructions.
– Charles Duffy
Jun 6 '12 at 21:30
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Can you change what a symlink points to after it is created?
...date the pathname referenced by it:
$ ln -s .bashrc test
$ ls -al test
lrwxrwxrwx 1 pascal pascal 7 2009-09-23 17:12 test -> .bashrc
$ ln -s .profile test
ln: creating symbolic link `test': File exists
$ ln -s -f .profile test
$ ls -al test
lrwxrwxrwx 1 pascal pascal 8 2009-09-23 17:12 test ->...