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How do I create multiple submit buttons for the same form in Rails?
I need to have multiple submit buttons.
7 Answers
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Separating class code into a header and cpp file
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The class declaration goes into the header file. It is important that you add the #ifndef include guards, or if you are on a MS platform you also can use #pragma once. Also I have omitted the private, by default C++ class members are private.
// A2DD.h
#ifndef A2DD_H
#defi...
How can I hash a password in Java?
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You can actually use a facility built in to the Java runtime to do this. The SunJCE in Java 6 supports PBKDF2, which is a good algorithm to use for password hashing.
byte[] salt = new byte[16];
random.nextBytes(salt);
KeySpec spec = new PBEKeySpec("pas...
How do I add a Maven dependency in Eclipse?
...'t know how to use Maven at all. I've been developing for a couple years with Eclipse and haven't yet needed to know about it. However, now I'm looking at some docs that suggest I do the following:
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How to delete a workspace in Perforce (using p4v)?
...force and have created a few workspaces as exercises for getting familiar with it. Now I would like to delete some of the workspaces. I just want to get rid of the workspaces so that they do not appear on the drop-down in the workspaces view ( do not want to do anything with actual depot files).
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Java RegEx meta character (.) and ordinary dot?
...nd the normal dot as we using in any sentence. How to handle this kind of situation for other meta characters too like ( * , + , \d ,...)
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How to sort an array of objects by multiple fields?
...ing method, based on this answer:
Update: Here is an "optimized" version. It does a lot more preprocessing and creates a comparison function for each sorting option beforehand. It might need more more memory (as it stores a function for each sorting option, but it should preform a bit better as it ...
Size-limited queue that holds last N elements in Java
... on Java libraries: is there a ready-made class that implements a Queue with a fixed maximum size - i.e. it always allows addition of elements, but it will silently remove head elements to accomodate space for newly added elements.
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How can I close a buffer without closing the window?
Vim's multilayered views (Windows, Buffers and Tabs) left me a little confused. Let's say I split the display (:sp) and then select a different buffer to display in each window. Now I want to close one of the buffers, yet I don't want the window to close (After the closing it can display the next bu...
Git ignore sub folders
.../Release" folders (and their contents), but still include the "bin" folder itself and any dll's contained therein.
10 Answe...