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  • ruby keyword arguments of method

    - by Yang
    How can I declare a method with keyword arguments just like rails do. some examples may be Person.find(:all, :conditions => "..."). How can I use symbols to create methods similar to the above? I am very new to ruby. Thanks in advance!

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  • Under what circumstances is jQuery's document.ready() not required?

    - by Phil.Wheeler
    While John Resig's recommendation is, quite rightly, to declare all events within a jquery.document.ready() function, I know that you don't actually have to put everything in there. In fact, there are cases where it may be more appropriate to deliberately put methods outside of the ready event. But what are those cases? Obviously best practice dictates that all events are declared within the ready event, so what would best practice be for declarations outside that event?

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  • DAO method retrieve single entry

    - by London
    Hello, How can I write DAO method which will return as a result only first entry from the database. For instance lets say I'm looking at Users table and I want to retrieve only the first entry, I'd declare method like: public User getFirstUser(){ //method logic } EDIT: User has primary key id if that matters at all. I apologize if this question is too simple/stupid/whatever I'm beginner with Java so I'm trying new things. thank you

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  • Saving Variables In An ASP Page

    - by Or Betzalel
    I'm trying to convert a game I made (WindowsFormApplication) to an ASP Page. My Problem is that I have a lot "private" variables in my WindowFormApplication and those variables are important for the game. But when after I Declare all my variables (in my Page_Load), they turn null no matter what I do(click a button, refresh the page). Is there anyway to save my variables between buttons (other than Session, because I'd have to create like 6 more sessions)

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  • Microsoft SQL Server 2005 Function, passing list of start and end times

    - by Kevin
    I'd like to do had a dynamic number of one start/end time pairs passed to a function as an input parameter. The function would then use the list instead of just one start, and one end time in a select statement. CREATE FUNCTION [dbo].[GetData] ( @StartTime datetime, @EndTime datetime ) RETURNS int AS BEGIN SELECT @EndTime = CASE WHEN @EndTime > CURRENT_TIMESTAMP THEN CURRENT_TIMESTAMP ELSE @EndTime END DECLARE @TempStates TABLE (StartTime datetime NOT NULL , EndTime datetime NOT NULL , StateIdentity int NOT NULL ) INSERT INTO @TempStates SELECT StartTime , EndTime , StateIdentity FROM State WHERE StartTime <= @EndTime AND EndTime >= @StartTime RETURN 0 END

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  • Which namespace does operator<< (stream) go to?

    - by aaa
    If I have have some overloaded ostream operators, defined for library local objects, is its okay for them to go to std namespace? If I do not declare them in std namespace, then I must use using ns:: operator <<. As a possible follow-up question, are there any operators which should go to standard or global namespace?

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  • How to fetch parameters when using the Apache Commons CLI library

    - by Mridang Agarwalla
    I'm using the Apache Commons CLI to handle command line arguments in Java. I've figured out my way around it to a decent extent but I need a little help. I've declared the a and b options and I'm able to access the value using CommandLine.getOptionValue. Usage: myapp [OPTION] [DIRECTORY] Options: -a Option A -b Option B How do I declare and access the DIRECTORY variable? Thank you.

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  • Java Method declaration

    - by user1701604
    I'm trying to declare a method for my program that takes only a 5 digit integer and for each digit of the integer, reads a value from the program and prints it out. I understand this isn't very clear but im having trouble relaying what I mean. I understand it will be some sort of for loop to read each digit of the integer individually until something reaches 5. Something like the charAt() string method but works for digits.

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  • How do you programmatically set a Style on a View?

    - by Greg
    I would like to do something like this: <Button android:id="@+id/button" android:layout_width="wrap_content" android:layout_height="wrap_cotent" style="@style/SubmitButtonType" /> But in code The xml approach works fine provided that SubmitButtonType is defined. Now what I assume happens is that the appt parser runs through this xml, generates an AttributeSet. That AttributeSet when passed to context/theme#obtainStyledAttributes() will have the style ref mask anything that is not written inline in this tag. Great that's fine! Now how do we do this programmatically. Button, as well as other View types, has a constructor that has the form: <Widget>(Context context, AttributeSet set, int defStyle). So I thought this would work. Button button = new Button(context, null, R.style.SubmitButtonType); However, I am finding that defStyle is badly documented as it really should be written to be a resourceId to an attribute (from R.attrs) that will be passed to obtainStyledAttributes() as the attribute resource, and not the style resource. After looking at the code, all the view implementations seem to pass 0 as the styleRef. I don't see the harm in having it passed as both the attr and the style resource (more flexible and negligible overhead) However I might be approaching this all wrong. How do you do this in code then other than by setting each individual element of the style to the specific widget you want to style (only possible by looking a the code to see what param maps to which method or set of methods). The only way I have found to do this is: <declare-styleable> <attr name="totallyAdhoc_attribute_just_for_this_case" format="reference"> </declare-styleable> <style name="MyAlreadyExistantTheme" > ... ... <item name="totallyAdhoc_attribute_just_for_this_case">@style/SubmitButtonType</item> </style> And instead of passing R.style.SubmitButtonType as defStyle, I pass the new R.attr.totallyAdhoc_attribute_just_for_this_case. Button button = new Button(context, null, R.attr.totallyAdhoc_attribute_just_for_this_case); This works but sounds way too complicated.

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  • text from a file turned into a variable?

    - by b3y4z1d
    If I made a program that stores strings on a text file using the "list"-function(#include ), and then I want to copy all of the text from that file and call it something(so I can tell the program to type in all of the text I copied somewhere by using that one variable to refer to the text), do I use a string,double,int or what do I declare that chunk of text as? I'm making the program using c++ in a simple console application.

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  • Drools 5.0 - Locally... Global

    - by Andy
    Hello, I'd like to declare a global variable that is scoped to only my rules file. For example: variable $reUseMe is only declared once. rule 1 $reUseMe : POJO(val = 1) //other conditions rule 2 $reUseMe val

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  • Weakly connected tree

    - by wow_22
    hello I have an algorithmic problem using a weakly connected tree T where w(T)=sum(w(e)) for each edge e,by w i declare weight and i have to prove that we can use prim and Kruskal algorithm while w(T)=max{w(e)} maximum between any edge e belongs at T (I proved that) but i have also to prove the same for w(T)=?(w(e)) while ? states product of all edges belongs at T i tried a lot to prove it but i did not came up with a result that proving or disapproving the use of prim ,kruskal any help will be more than appreciated thanks

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  • Python function argument scope (Dictionaries v. Strings)

    - by Shaun Meyer
    Hello, given: foo = "foo" def bar(foo): foo = "bar" bar(foo) print foo # foo is still "foo"... foo = {'foo':"foo"} def bar(foo): foo['foo'] = "bar" bar(foo) print foo['foo'] # foo['foo'] is now "bar"? I have a function that has been inadvertently over-writing my function parameters when I pass a dictionary. Is there a clean way to declare my parameters as constant or am I stuck making a copy of the dictionary within the function? Thanks!

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  • Syntax explanation

    - by Knowing me knowing you
    In code: struct tagPaint { }Paint,//<<<--------------what's this (Paint)? *pPaint;//<<<-------------and this(*pPaint)? I mean do I declare variable with name Paint of type tagPaint and pointer called pPaint to tagPaint? Thanks.

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  • How To Bind ComboBox With ListItems in windows Forms?

    - by hatem gamil
    hi all i want to make a 2 comboBoxes ,the first one shows Hours and the Second Shows minutes but i cant do so in windows application as i have working as a web dev for a while and i forgot so i want to declare listItems then bind it to combo box i want to make it as a custom control so i want some help to tell me how to do that i am using VS 2008 thnxx

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  • Embed flash ActiveX in vb6 dynamically?

    - by Alex
    im trying to embed flash in my program by placing flash.ocx in my app's folder without having to register it. i found DirectCom.dll and with this code i can show the right version of flash. but how do i show it on the form and load the movie? Private Declare Function GetInstanceOld Lib "DirectCom" Alias "GETINSTANCE" (FName As String, ClassName As String) As Object Dim ShockwaveFlash1 As Object Set ShockwaveFlash1 = GetInstanceEx(StrPtr(App.Path & "\" & "flash.ocx"), StrPtr("ShockwaveFlash"), True) MsgBox ShockwaveFlash1.FlashVersion

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  • how to display numbers without garbage numbers?

    - by Medeti Naveen Kumar
    Hi friends, whenever i press the numbers in text filed upto 9 numbers my textfield has taken right values but i press 10 th number.i have found duplicate number. in my header file i declare a pressnumber is "long long int" -(IBAction)press:(id)sender{ pressNumber = pressNumber*10 + (int)[sender tag]; phonenumber.text = [NSString stringWithFormat:@"%d",currentNumber]; } i want to enter a phone number in my textfiled but it is not taken 10 right numbers. Thanking you,

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  • Getting ORACLE programming object definitions

    - by Yaakov Davis
    Let's say I have an ORACLE schema with contains a package. That package defines types, functions, procedures, etc: CREATE PACKAGE... DECLARE FUNCTION ... PROCEDURE ... END; Is there a query I can execute to get the definitions of those individual objects, without the wrapping package?

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  • Delphi SetLength Custom Indexing

    - by Andreas Rejbrand
    In Delphi, it is possible to create an array of the type var Arr: array[2..N] of MyType; which is an array of N - 1 elements indexed from 2 to N. If we instead declare a dynamic array var Arr: array of MyType and later allocate N - 1 elements by means of SetLength(Arr, N - 1) then the elements will be indexed from 0 to N - 2. Is it possible to make them indexed from 2 to N (say) instead?

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