i've found one cheat sheet for doctrine: cheat sheet
but it doesn't list all methods for Doctrine_Record, Doctrine_Core, Doctrine_Query etc.
i wonder if there is a such reference?
Would be very helpful.
In Rails 3 (beta 3 on 1.8.7), when calling to_json on a relation i get a circular reference exception. Converting that relation to an array first, and THEN calling to_json works.
Code That fails:
Model.where().to_json (Where model is any model in your Rails 3 app)
Code that works:
Model.where().to_a.to_json
This can be reproed on the console.
Has anyone else run in to this? Is this expected?
I have just asked which one is better?
Static Vs Non-Static?
http://stackoverflow.com/questions/3016717/static-vs-non-static-method-performance-c
I would like to take this discussion one step ahead.
Consider If i pass reference of Panel control as parameter to Public static method, will static method still rules in performance?
I want to match YYYY-YY for sequential years.
I at moment I'm trying to match where all the second YY is the 3rd and 4th characters in YYYY with 1 added to it.
So far I've got {19|20}(\d{2})-(\d{2}), but not sure how to use ? with reference to (1) or whether I'm going about this the right way and finding out the inevitable "unknown unknowns" (like YY99) with this approach?
Edit:
Matches: 2010-11,2011-12,2029-30
Not matches: 2010-12, 2010-09,2011-2,2011-2012
I want to link a .lib in my Qt project and I get an error about an undefined reference to vhtIOConn::getDefault(vhtIOConn::DeviceType).
I have already added the following specifications to the .pro file:
######################################################################
# Automatically generated by qmake (2.01a) vie 28. ago 12:48:10 2009
######################################################################
TARGET =
DEPENDPATH += .
INCLUDEPATH += .
LIBS += "C:\agregar\VirtualHandCore.lib"
LIBS += "C:\agregar\VirtualHandDevice.lib"
LIBS += "C:\agregar\VirtualHandRegistry.lib"
# Input
HEADERS += "C:/Documents and Settings/halvarado/Mis documentos/respaldos de Qt/Development/include/vhandtk/vhtBase.h"
SOURCES += main.cpp
What should I do?
Hi
I am using DataContract with preserveObjectReferences set to false (default). Under any circumsatnces will it cause a Circular reference and cause Serialization Exception?
if yes, could you please xplain with a sample scenario?
Thanks
Lijo
Hi ,
My problem is the following :
I have a class A that inherits from an abstract base class. I override all the virtual functions from the base class, and I have a constructor like this :
A::A(B* b)
{
this->b=b;
}
In the constructor of class B , I have the following piece of code:
A* a=new A(this)
However this line of code gives the error : undefined reference to 'A::A(B*)'
I have absolutly no idea why could this be happening , so any suggestion would be greatly appreciated !
How would I refer to a hash using the value of a string - i.e.
#!/usr/bin/env ruby
foo = Hash.new
bar = "foo"
"#{bar}"["key"] = "value"
results in
foo:5:in `[]=': string not matched (IndexError)
from foo:5
How do I use the value of bar (foo) to reference the hash named foo? Thanks!
HI everyone,
Just looking for a website or pdf reference which has a color palette of the .NET (Visual Studio 2008) foreground colors? (E.g. like AliceBlue, AntiqueWhite, Cyan....)
how can I fix this error ?
Target of assignment must be a reference value
for (var z:int=0; z<this.tags.getItemAt(i).yearPopularity.length; z++) {
summedPopularity.getItemAt(z) = summedPopularity.getItemAt(z) + tags.getItemAt(i).yearPopularity.getItemAt(z);
}
thanks
Hello,
I am trying to use the http_get function. But I get a undefined reference error. I understands that this means the function can not be found. However I do no know how to fix this? Could somebody help?
Cheers
Hi all,
I have an android application that utilizes another project as a project reference. i've gone into the application options, build path, and then selected the project in project references.
everything builds and deploys fine, but when i try to run the application and instantiate a class in that project, i'm getting a java.lang.NoClassDefFoundError errrrrr.
i'm no java project expert, so i assume i've cocked something simple up. any ideas?
How can I pass an array of struct by reference ?
example :
struct Coordinate {
int X;
int Y;
};
SomeMethod(Coordinate *Coordinates[]){
//Do Something with the array
}
int main(){
Coordinate Coordinates[10];
SomeMethod(&Coordinates);
}
i have some picture files that were included in a vb.net project
how do i reference those files in my code?
what it be just filename.ext
or would it be project/filename.ext
or would it be something like environment.getfolderpath.project/filename.ext??
the build action is NONE, and it is to be copied to output folder
From the book "Groovy and Grails recipes" I'm using the following code snippet:
String HelloLanguage = "def hello(language) {return \"Hello $language\"}"
However, I get a compiler error "You attempted to reference a variable in the binding or an instance variable from a static context." because language can't be bound. What is wrong?
As far as i can see in a situation like this:
var x = [];
var y = {};
y.someProp='asd';
This doesnt work:
x.push(y);
What I want to do is add a reference of y to x so that later if I will "delete y;" I want it also to be removed from the array x.
Hi,
On the MSDN, I have found following:
public event EventHandler<MyEventArgs> SampleEvent;
public void DemoEvent(string val)
{
// Copy to a temporary variable to be thread-safe.
EventHandler<MyEventArgs> temp = SampleEvent;
if (temp != null)
temp(this, new MyEventArgs(val));
}
I do not understand, "copy to temporary variable", isnt it reference type?
A colleague of mine sets reference to null in finally blocks. I think this is nonsense.
public Something getSomething() {
JDBCConnection jdbc=null;
try {
jdbc=JDBCManager.getConnection(JDBCTypes.MYSQL);
}
finally {
JDBCManager.free(jdbc);
jdbc=null; // <-- Useful or not?
}
}
What do you think of it?
Hello Iam working in a global int in which a variable will be used later. I've made the global variable like this:
class Foo
{
public static int stream = Bass.BASS_StreamCreateFile(path1.Text, 0, 0, BASSFlag.BASS_DEFAULT);
}
which will be later called like this:
Foo.stream
and it can also contain more then 1 stream for example stream20,30,etc...
The problem here is that it returns me this error:
"An object reference is required for the non-static field, method, or property" where I call the text in path1.Text
How do I fix this?
Hey,
I'm trying to use the Libxl library in my eclipse c/c++ project. Right now I'm using the minGW compiler in eclipse.
With this following code:
Book* book = xlCreateBook();
I get this error:
/src/xls2csv.cpp:22: undefined reference to `xlCreateBookCA'
Any help would be greatly appreciated :)
Can we initialize python objects with statement like this:
a = b = c = None
it seems to me when I did a = b = c = list() will cause circular reference count issue.
Please give your expert advice.
if i have this code in jquery:
var parentDiv = $(this).parent('.copyInstance');
inside this div there is a form.
how do i reference a form element inside this selector? i want something like this
$.post($(parentDiv + " Form").attr('action'), $(parentDiv + " Form").serialize(), function(data) {
});
but this above doesn't seem to work