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Converting string from snake_case to CamelCase in Ruby
... you're using Rails, String#camelize is what you're looking for.
"active_record".camelize # => "ActiveRecord"
"active_record".camelize(:lower) # => "activeRecord"
If you want to get an actual class, you should use String#constantize on top of that.
"app_user".came...
django admin - add custom form fields that are not part of the model
....models import YourModel
class YourModelForm(forms.ModelForm):
extra_field = forms.CharField()
def save(self, commit=True):
extra_field = self.cleaned_data.get('extra_field', None)
# ...do something with extra_field here...
return super(YourModelForm, self).save(c...
What are 'get' and 'set' in Swift?
...y can set the members value to anything less than 2:
class family {
var _members:Int = 2
var members:Int {
get {
return _members
}
set (newVal) {
if newVal >= 2 {
_members = newVal
} else {
println('error: cannot have family with less than 2 members')
...
Application not picking up .css file (flask/python)
...ride it.
Your directory structure for css should be like:
/app
- app_runner.py
/services
- app.py
/templates
- mainpage.html
/static
/styles
- mainpage.css
Notice that your /styles directory should be under /static
Then, do this
<link re...
How to resize superview to fit all subviews with autolayout?
... *) indexPath
{
static TSTableViewCell *sizingCell;
static dispatch_once_t onceToken;
dispatch_once(&onceToken, ^{
sizingCell = (TSTableViewCell*)[tableView dequeueReusableCellWithIdentifier: @"TSTableViewCell"];
});
// configure the cell
sizingCell.text = self....
Which SQL query is faster? Filter on Join criteria or Where clause?
...
# explain analyze select e.* from event e join result r on e.id = r.event_id and r.team_2_score=24;
QUERY PLAN
-------------------------------------------------------------------------------------...
ASP.NET MVC: No parameterless constructor defined for this object
...ot know if it makes sense... something like that.
– H_He
Jul 28 '14 at 11:52
1
Tuples... maybe fo...
Difference between fprintf, printf and sprintf?
...on>
#include <stdarg.h>
#include <stdio.h>
struct exception_fmt : std::exception
{
exception_fmt(char const* fmt, ...) __attribute__ ((format(printf,2,3)));
char const* what() const throw() { return msg_; }
char msg_[0x800];
};
exception_fmt::exception_fmt(char const* fm...
How can I rename a field for all documents in MongoDB?
...ormer way:
remap = function (x) {
if (x.additional){
db.foo.update({_id:x._id}, {$set:{"name.last":x.name.additional}, $unset:{"name.additional":1}});
}
}
db.foo.find().forEach(remap);
In MongoDB 3.2 you can also use
db.students.updateMany( {}, { $rename: { "oldname": "newname" } } )
...
cancelling a handler.postdelayed process
... this to post a delayed runnable:
myHandler.postDelayed(myRunnable, SPLASH_DISPLAY_LENGTH);
And this to remove it: myHandler.removeCallbacks(myRunnable);
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