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Rails hidden field undefined method 'merge' error
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You should do:
<%= f.hidden_field :service, :value => "test" %>
hidden_field expects a hash as a second argument
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CSS selector with period in ID
...e it does use dots in its ids. For example: "OpenLayers.Control.Attribution_7". I guess it helps with the internal code where they can have the javascript variable name be the same value as the id itself.
– Hoffmann
Jan 28 '14 at 17:44
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Advantage of switch over if-else statement
...he clearest code is probably:
if (RequiresSpecialEvent(numError))
fire_special_event();
Obviously this just moves the problem to a different area of the code, but now you have the opportunity to reuse this test. You also have more options for how to solve it. You could use std::set, for exa...
How can I connect to MySQL in Python 3 on Windows?
...or
Almost completely compatible with MySQLdb, after calling pymysql.install_as_MySQLdb()
https://pypi.python.org/pypi/cymysql
fork of pymysql with optional C speedups
https://pypi.python.org/pypi/mysqlclient
Django's recommended library.
Friendly fork of the original MySQLdb, hopes to merge ...
Convert Iterable to Stream using Java 8 JDK
...mportant to most of daily iterable operations.
– user_3380739
Dec 7 '16 at 0:27
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How can I set the request header for curl?
...;q=0.8,en;q=0.6' \
-e localhost \
-A 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/29.0.1547.65 Safari/537.36' \
'http://restapi.some-site.com/getsomething?argument=value&argument2=value'
In this example the referer (-e or --referer in curl) is '...
How to create an android app using HTML 5
...s/www" folder in your Android project.
https://github.com/jakewp11/HTML5_Android_Template.git
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What are the differences between SML and OCaml? [closed]
...fe but restricted equality types in SML), non-generalized type variables ('_a in OCaml), printf, interpretation of file names as module names in OCaml, far more currying in OCaml's stdlib. You wrote interface twice when you meant something else (implementation?) the second time.
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Is it possible to use AutoLayout with UITableView's tableHeaderView?
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- (void)viewDidLoad {
[super viewDidLoad];
// ....
dispatch_async(dispatch_get_main_queue(), ^{
_profileView = [[MyView alloc] initWithNib:@"MyView.xib"];
self.tableView.tableHeaderView = self.profileView;
});
}
Note: It fix the bug when the loaded view has a fi...
rails 3 validation on uniqueness on multiple attributes
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In Rails 2, I would have written:
validates_uniqueness_of :zipcode, :scope => :recorded_at
In Rails 3:
validates :zipcode, :uniqueness => {:scope => :recorded_at}
For multiple attributes:
validates :zipcode, :uniqueness => {:scope => [:recorded_at...