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OO Design in Rails: Where to put stuff
...e huge ActiveRecord subclasses and huge controllers is quite natural (even if you do use a controller per resource). If you were to create deeper object worlds, where would you put the classes (and modules, I suppose)? I'm asking about views (in the Helpers themselves?), controllers and models.
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com.mysql.jdbc.exceptions.jdbc4.CommunicationsException: Communications link failure
...om this answer which also contains a step-by-step MySQL+JDBC tutorial:
If you get a SQLException: Connection refused or Connection timed out or a MySQL specific CommunicationsException:
Communications link failure, then it means that the DB isn't reachable at all. This can have one or more of...
Is there a way to add/remove several classes in one single instruction with classList?
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And if you want to apply an Array of several class-names, you have to call: DOMTokenList.prototype.add.apply(elem.classList, ['first', 'second', 'third']);
– Emanuel Kluge
Feb 15 '13 at 16:...
How to check if smtp is working from commandline (Linux) [closed]
... You should wait for the servers's response to each command, and abort if you get and error (4xx or 5xx result code).
– tripleee
Aug 16 '12 at 14:01
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How can I get the assembly file version
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See my comment above asking for clarification on what you really want. Hopefully this is it:
System.Reflection.Assembly assembly = System.Reflection.Assembly.GetExecutingAssembly();
System.Diagnostics.FileVersionInfo fvi = System.Diagnostics.FileVersionInfo.Ge...
Why is ArrayDeque better than LinkedList
... a cache miss on each element. On top of it they consume way more memory.
If you need add/remove of the both ends, ArrayDeque is significantly better than a linked list. Random access each element is also O(1) for a cyclic queue.
The only better operation of a linked list is removing the current ...
Filtering collections in C#
...ntly using generic List collections, but am open to using other structures if they perform better.
9 Answers
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How to update attributes without validation
...d saves the record without going through the normal validation procedure.
if a.update_attribute('state', a.state)
Note:- 'update_attribute' update only one attribute at a time from the code given in question i think it will work for you.
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Java: Instanceof and Generics
...ook through my generic data structure for a value's index, I'd like to see if it is even an instance of the type this has been parametrized to.
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Curl GET request with json parameter
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perhaps different quotation? "server:5050/a/c/getName{'param0':'pradeep'}"
– A B
Aug 27 '15 at 8:12
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