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  • How to set RAILS_ENV variable when running Rails tests?

    - by Jason
    In both my environment.rb and test_helper.rb files I have: ENV["RAILS_ENV"] = "development" I have one functional test written, however when I run it, the script tries to connect to my database using the "test" configuration settings which are in the database.ymal file & won't connect the the database. How can I run my tests using the "development" environment settings?

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  • Selenium: How to use stored value in a javascript comparison

    - by dstrube
    I've searched around for the answer to this and found lots of much more complicated questions, but none that gave me insight enough to figure this one out. What I'm doing: 1- open a page with a number that will probably be large 2- get the X Path to where that number is and store it to a variable 3- do a javascript to compare the above stored variable to see if it is bigger than 10, if so, set a new varaible to true; else false (because that is the default value) 4- verify the variable in #3 is true Sounds simple enough, no? Where it goes wrong: At step 3, comparing the variable from step #2 to 10 isn't allowed, at least not the way I'm writing it. Why? Details: <tr> <td>open</td> <td>http://www.google.com/search?hl=en&q=selenium+verifyEval</td> <td></td> </tr> <tr> <td>store</td> <td>/html/body/div[5]/div/p/b[3]</td> <td>resultCount</td> </tr> <tr> <td>storeEval</td> <td>var isMoreThan10 = new Boolean(); isMoreThan10 = (resultCount &gt; 10);</td> <td>isMoreThan10</td> </tr> <tr> <td>verifyExpression</td> <td>${isMoreThan10}</td> <td>true</td> </tr> I just thought of one possible workaround: Exapnd the javascript code to get the value there & assign it to a variable there so I'll be more likely to be able to use that variable in the javascript. Not sure exactly how that would be done- anyone wanna help with that? But surely there is be a better way, isn't there? I must be able to assign a value to a variable in Selenium, then in the next line use that variable in a javascript, right?

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  • Interface for reading variable length files with header and footer.

    - by John S
    I could use some hints or tips for a decent interface for reading file of special characteristics. The files in question has a header (~120 bytes), a body (1 byte - 3gb) and a footer (4 bytes). The header contains information about the body and the footer is only a simple CRC32-value of the body. I use Java so my idea was to extend the "InputStream" class and add a constructor such as "public MyInStream( InputStream in)" where I immediately read the header and the direct the overridden read()'s the body. Problem is, I can't give the user of the class the CRC32-value until the whole body has been read. Because the file can be 3gb large, putting it all in memory is a be an idea. Reading it all in to a temporary file is going to be a performance hit if there are many small files. I don't know how large the file is because the InputStream doesn't have to be a file, it could be a socket. Looking at it again, maybe extending InputStream is a bad idea. Thank you for reading the confused thoughts of a tired programmer. :)

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  • It's possible to create variable to hold fields of class dynamically???

    - by yossharel
    hi all, In my 'Person' class, I have some fields like 'firstname','lastname','nickname' and so on. I want to write code to search dynamically, sometimes by 'firstname' and sometimes by 'nickname' field. The code I want to write, should be like this: Object someVariable = "firstname"; Person result = ListOfPerson.Where(p => p.someVariable = "exp").FirstOrDefault(); Can anyone Know if it's possible?

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  • How do I get user input to refer to a variable in Python?

    - by somefreakingguy
    I would like to get user input to refer to some list in my code. I think it's called namespace? So, what would I have to do to this code for me to print whatever the user inputs, supposing they input 'list1' or 'list2'? list1 = ['cat', 'dog', 'juice'] list2 = ['skunk', 'bats', 'pogo stick'] x = raw_input('which list would you like me to print?') I plan to have many such lists, so a series of if...then statements seems unruly.

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  • Creating a variable-speed slideshow based on USB input on OSX.

    - by Dave A
    I have a friend who is trying to put together a geeky little contraption for a wedding, where people can view a slideshow. Neither of us use Macs, nor have programmed for one, but for various reasons it has to run on a Mac. There will be a USB ammeter hooked up to a bike dynamo. What we want is for a slideshow to be run, and advance at a speed relative to how fast someone is pedaling on a stationary bike. After much googling, it seems like we could load an iPhoto slideshow up via applescript. Is it possible to pause the slideshow and advance it with keypress commands? The applescript commands would be run via a bash script or similar that would monitor the value returned by the USB ammeter's command-line app and issue the keypress events accordingly. Is there some other app that could be likewise scripted to display photos?Hoping someone has some hints to get us started in the right direction! Thanks!

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  • R Question. Numeric variable vs. Non-numeric and "names" function

    - by Michael
    > scores=cbind(UNCA.score, A.score, B.score, U.m.A, U.m.B) > names(scores)=c('UNCA.scores', 'A.scores', 'B.scores','UNCA.minus.A', 'UNCA.minus.B') > names(scores) [1] "UNCA.scores" "A.scores" "B.scores" "UNCA.minus.A" "UNCA.minus.B" > summary(UNCA.scores) X6.69230769230769 Min. : 4.154 1st Qu.: 7.333 Median : 8.308 Mean : 8.451 3rd Qu.: 9.538 Max. :12.000 > is.numeric(UNCA.scores) [1] FALSE > is.numeric(scores[,1]) [1] TRUE My question is, what is the difference between UNCA.scores and scores[,1]? UNCA.scores is the first column in the data.frame 'scores', but they are not the same thing, since one is numeric and the other isn't. If UNCA.scores is just a label here how can I make it be equivalent to 'scores[,1]? Thanks!

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  • What's the environment variable for the path to the desktop?

    - by Scott Langham
    I'm writing a Windows batch file and want to copy something to the desktop. I think I can use this: %UserProfile%\Desktop\ However, I'm thinking, that's probably only going to work on an English OS. Is there a way I can do this in a batch file that will work on any internationalized version? UPDATE I tried the following batch file: REG QUERY "HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\User Shell Folders" /v Desktop FOR /F "usebackq tokens=3 skip=4" %%i in (`REG QUERY "HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\User Shell Folders" /v Desktop`) DO SET DESKTOPDIR=%%i FOR /F "usebackq delims=" %%i in (`ECHO %DESKTOPDIR%`) DO SET DESKTOPDIR=%%i ECHO %DESKTOPDIR% And got this output: S:\REG QUERY "HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\User Shell Folders" /v Desktop HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Explorer\User Shell Folders Desktop REG_EXPAND_SZ %USERPROFILE%\Desktop S:\FOR /F "usebackq tokens=3 skip=4" %i in (`REG QUERY "HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\User Shell Folder s" /v Desktop`) DO SET DESKTOPDIR=%i S:\FOR /F "usebackq delims=" %i in (`ECHO ECHO is on.`) DO SET DESKTOPDIR=%i S:\SET DESKTOPDIR=ECHO is on. S:\ECHO ECHO is on. ECHO is on.

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  • How can I access a JavaScript variable value in JSP?

    - by Pramod
    function modification() { alert(document.getElementById("record").value); var rec=document.getElementById("record").value; <% Connection connect = DriverManager.getConnection("jdbc:odbc:DSN","scott","tiger"); Statement stm=connect.createStatement(); String record=""; // I want value of "rec" here. ResultSet rstmt=stm.executeQuery("select * from "+record); %> }

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  • is an instance variable in an action of a controller available for all the controllers view?

    - by fenec
    I am just trying to printout the parameters that have been entered into my form. basically i create a new bet then i display the parameters: MIGRATION enter code here class CreateBets < ActiveRecord::Migration def self.up create_table :bets do |t| t.integer :accepted ,:default = 0 t.integer :user_1_id #proposer t.integer :user_2_id #receiver t.integer :team_1_id #proposer's team t.integer :team_2_id #receiver's team t.integer :game_id t.integer :winner t.integer :amount t.timestamps end end def self.down drop_table :bets end end CONTROLLER bets_controller.erb enter code here class BetsController < ApplicationController def index redirect_to new_bet_path end def new @b=Bet.new end def create @@points=params[:points] @@winner=params[:winner] end end VIEWS New.erb New Bet <% facebook_form_for Bet.new do |f| %> <%= f.text_field :amount, :label=>"points" %> <%= f.text_field :winner, :label=>"WinningTeam" %> <%= f.buttons "Bet" %> <% end %> create.erb enter code here points:<%= @@points %> <br> winner:<%= @@winner %>

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  • Why do condition variables sometimes erroneously wake up?

    - by aspo
    I've known for eons that the way you use a condition variable is lock while not task_done wait on condition variable unlock Because sometimes condition variables will spontaneously wake. But I've never understood why that's the case. In the past I've read it's expensive to make a condition variable that doesn't have that behavior, but nothing more than that. So... why do you need to worry about falsely being woken up when waiting on a condition variable?

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  • How can I pass a const array or a variable array to a function in C?

    - by CSharperWithJava
    I have a simple function Bar that uses a set of values from a data set that is passed in in the form of an Array of data structures. The data can come from two sources: a constant initialized array of default values, or a dynamically updated cache. The calling function determines which data is used and should be passed to Bar. Bar doesn't need to edit any of the data and in fact should never do so. How should I declare Bar's data parameter so that I can provide data from either set? union Foo { long _long; int _int; } static const Foo DEFAULTS[8] = {1,10,100,1000,10000,100000,1000000,10000000}; static Foo Cache[8] = {0}; void Bar(Foo* dataSet, int len);//example function prototype Note, this is C, NOT C++ if that makes a difference; Edit Oh, one more thing. When I use the example prototype I get a type qualifier mismatch warning, (because I'm passing a mutable reference to a const array?). What do I have to change for that?

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  • Does adding to a method group count as using a variable?

    - by Vaccano
    I have the following code example taken from the code of a Form: protected void SomeMethod() { SomeOtherMethod(this.OnPaint); } private void SomeOtherMethod(Action<PaintEventArgs> onPaint) { onPaint += MyPaint; } protected void MyPaint(PaintEventArgs e) { // paint some stuff } The second method (SomeOtherMethod) has resharper complaining at me. It says of onPaint that "Value assigned is not used in any execution path". To my mind it was used because I added a method to the list of methods called when a paint was done. But usually when resharper tells me something like this it is because I am not understanding some part of C#. Like maybe when the param goes out of goes out of scope the item I added to the list gets removed (or something like that). I thought I would ask here to see if any one knows what resharper is trying to tell me. (Side Note: I usually just override OnPaint. But I am trying to get OnPaint to call a method in another class. I don't want to expose that method publicly so I thought I would pass in the OnPaint group and add to it.)

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  • How do I create efficient instance variable mutators in Matlab?

    - by Trent B
    Previously, I implemented mutators as follows, however it ran spectacularly slowly on a recursive OO algorithm I'm working on, and I suspected it may have been because I was duplicating objects on every function call... is this correct? %% Example Only obj2 = tripleAllPoints(obj1) obj.pts = obj.pts * 3; obj2 = obj1 end I then tried implementing mutators without using the output object... however, it appears that in MATLAB i can't do this - the changes won't "stick" because of a scope issue? %% Example Only tripleAllPoints(obj1) obj1.pts = obj1.pts * 3; end For application purposes, an extremely simplified version of my code (which uses OO and recursion) is below. classdef myslice properties pts % array of pts nROW % number of rows nDIM % number of dimensions subs % sub-slices end % end properties methods function calcSubs(obj) obj.subs = cell(1,obj.nROW); for i=1:obj.nROW obj.subs{i} = myslice; obj.subs{i}.pts = obj.pts(1:i,2:end); end end function vol = calcVol(obj) if obj.nROW == 1 obj.volume = prod(obj.pts); else obj.volume = 0; calcSubs(obj); for i=1:obj.nROW obj.volume = obj.volume + calcVol(obj.subs{i}); end end end end % end methods end % end classdef

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  • How can I alter an external variable from inside my AJAX?

    - by tmedge
    I keep on having these same two problems. I have been trying to use Remy Sharp's wonderful tagSuggest plugin, and it works great. Until I try to use an AJAX call to get tags from my database. My setGlobalTags() works great, with my defined myTagList at the top of the function. What I want to do is set myTagList equal to the result from my AJAX. My problem is that I can neither call setGlobalTags() from inside my success or error functions, nor actually alter the original myTagList. Also, I keep on having this other issue as well. I keep this code in my Master page, and my AJAX returns 'success' on almost every page. I only (and always) get the error alert when I navigate to a page that actually contains something of id="ParentTags". I don't see why this is happening, because my $('#ParentTags').tagSuggest(); is definitely after my AJAX call. I realize that this is probably just some dumb conventions error, but I am new to this and I'm here to learn from you guys. Thanks in advance! $(function() { var myTagList = ['test', 'testMore', 'testALot']; $.ajax({ type: "POST", url: 'Admin/GetTagList', dataType: 'json', success: function(resultTags) { myTagList = resultTags; alert(myTagList[0]); setGlobalTags(myTagList); }, error: function() { alert('Error'); setGlobalTags(myTagList); } }); setGlobalTags(myTagList); $('#ParentTags').tagSuggest(); });

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  • Manipulating the address of a variable to store a smaller type?

    - by Sidnicious
    This is what I get for pampering myself with high-level programming languages. I have a function which writes a 32-bit value to a buffer, and a uint64_t on the stack. Is the following code a sane way to store it? uint64_t size = 0; // ... getBytes((uint32_t*)&size+0x1); I'm assuming that this would be the canonical, safe style: uint64_t size = 0; // ... uint32_t smallSize; getBytes(&smallSize); size = smallSize;

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  • How do I get Mathematica to thread a 2-variable function over two lists, using functional programmin

    - by Leah Wrenn Berman
    Lets say I have a function f[x_, y_], and two lists l1, l2. I'd like to evaluate f[x,y] where x runs over the list l1 and y runs over the list l2, and I'd like to do it without having to make all pairs of the form {l1[[i]],l2[[j]]}. (Motivation: I'm trying to implement some basic Haskell programs in Mathematica. In particular, I'd like to be able to code the Haskell program isMatroid::[[Int]]->Bool isMatroid b =and[or[sort(union(xs\\[x])[y]'elem'b|y<-ys]|xs<-b,ys<-b, xs<-x] I think I can do the rest of it, if I can figure out the original question, but I'd like the code to be Haskell-like. Any suggestions for implementing Haskell-like code in Mathematica would be appreciated.)

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  • how to find the max index of a string from variable in c#?

    - by zoya
    suppose i have a string as string[] _strFile; foreach (ListViewItem item in listview1.Items) { string _strRecFileName = item.SubItems[5].Text; _strFile = _strRecFileName.Split('\\'); } in my listview i have a string as \123\abc\hello\.net\*winxp* now i want to get the last value of the string i.e. winxp in this case.. what is the function to do that? can i use getupperbond function to calculate the upper bound of the string and how to use it?

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