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• create a new model instance version instead of update

  - by pablo

  Hi, I have a model with a version field - autocreate timestamp. When a model instance is being saved I want to create a new instance with a new timestamp instead of updating the old model instance. Is it possible? I thought of overriding the model save() method but I don't know how to create a new instance without creating a infinite save() loop. Thanks

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• Detect activity level of microphone in flex

  - by Gaurav

  Hi, I have to detect avtivityLevel of microphone in Flex. I am using the activityLevel property of Microphone class but as I found out it always return -1 even if I have done Microphone.getMicrophone(). To detect activity level we have to set microphone.setLoopback = true; Does anybody know how to do this without using loop back as I do not want to hear my sound back just monitor the activity level Thanks

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• Explain how finding cycle start node in cycle linked list work?

  - by Passionate programmer

  I understand that Tortoise and Hare's meeting concludes the existence of loop, but how does moving tortoise to beginning of linked list while keeping the hare at meeting place, followed by moving both one step at a time make them meet at starting point of cycle?

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• in Python find number of same elements in 2 lists

  - by John

  Hi, In Python if I have 2 lists say: l1 = ['a', 'b', 'c', 'd'] l2 = ['c', 'd', 'e'] is there a way to find out how many elements they have the same. In the case about it would be 2 (c and d) I know I could just do a nested loop but is there not a built in function like in php with the array_intersect function Thanks

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• How can I create an Outlook PST file using .Net?

  - by brendan

  I'm writing an app that will manipulate Outlook data. I want to make a backup of that data first and am hoping I could just loop through the contact/calendar items, etc and write them out to a PST file. How can I write the contents of 1 or several Outlook folders to a PST using .Net? [vb or c# no matter]

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• How to create a CPU spike with a bash command

  - by User1

  I want to create a near 100% load on a Linux machine. It's quad core system and I want all cores going full speed. Ideally, the CPU load would last a designated amount of time and then stop. I'm hoping there's some trick in bash. I'm thinking some sort of infinite loop.

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• How does the where clause in MySQL work ?

  - by Eternal Learner

  I have a doubt. Assume R and S are 2 relations with attributes A and B respectively . If I have a query Select * From R, S Where R.A = S.B Does this work like a double For Loop in say c or c++ For( i=0; i<n; i++) For( j=0; j<n; j++) if (i == j) //DO some work

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• Brackets or no brackets for one-line statements ?

  - by Danvil

  What do you prefer? if(condition1) foo(); or if(condition1) { foo(); } Same for the for loop or other...

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• Tool to profile php code

  - by Michael

  Looking for some [freeware/opensource] tool in order to make it easy to profile a big php project on win32 platform. Need to find out which part of code is most time consuming. It's hard to manually put timing function for each function, loop...

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• What is used instead of SendMessage and PostMessage in Java to handle inter-thread communications?

  - by Kieveli

  I'm from a WinAPI / C++ background, and I'm curious as to what the Java world uses in place of a threaded message loop in a worker thread to handle communications and interactions between threads. The idea is to use a message pump in both the worker thread, and the main thread, and have them posting messages back and forth. This solution is very WinAPI / C++ centric, and probably not the preferred method of achieving this goal in Java. What is the 'Java' way to do something like this?

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• How to output an index while iterating over an array in python

  - by BeeBand

  I am iterating over an array in python: for g in [ games[0:4] ]: g.output() Can I also initialise and increment an index in that for loop and pass it to g.output()? such that g.output(2) results in: Game 2 - name: Fruit Splat, text: "Splat fruits!", bitrate: 250000

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• Handling right-click within a MenuItem

  - by tylerl

  Is it possible to check for a right-click on a menu item in .NET? It appears that the framework doesn't expose it as an Event, but I've seen other applications (like Chrome and Firefox) which allow you to bring up a right-click context menu for a menu item. Presumably with a little event-loop magic you can do the same thing in .NET, right?

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• What is the display list in Flash 10? Array? Linked list?

  - by Typeoneerror

  I'm working on a game that has many elements on stage, so I'm looking to optimize my loops. I know that Vector is faster than looping an array, but I'm also in some cases using: while (i < numChildren) getChildAt(i) ...to update sprites. My question is when I use getChildAt, is that accessing an Array or Vector or linked list or other? Should I instead store references to my objects in a Vector and loop through that instead?

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• Find the position of a string in an array of string with the GLib

  - by e1s

  Hello, I have an array of string, like: char **strings = {"str1", "str2"}; And i would like to know if there is a function in the glib to find the position of a string in this array. I guess i could just do g_strcmp0 in a for() loop, but there may be a better way to do it. Thanks

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• Handling of data truncation in FUSE

  - by Vi

  I expect any good program should do all their reads and writes in a loop until all data written/read without relying that write will write everything (even with regular files). Am I right? Implemented simple FUSE filesystem which only allows reading and writing with small buffers, very often returning that it is written less bytes that in a buffer (using -o direct_io). Some programs work, some not. Are them buggy or programs should not expect truncated writes and reads from the regular files?

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• Stings Generation

  - by sikas

  Hi,I would like to know how can I create various string from some given characters eg: given characters: a, b I would like to generate the following strings: aa ab ba bb What I have thought of is having (for 2 inputs only) two for-loops one inside another, and then loop each to the number of inputs which in this case is 2 and the output strings will be 2*2 0 4 strings and as the number increases the number of output strings will increase by multiplying n*n (n-times)

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• Rails - number of rows in a file

  - by xpepermint

  Hey. How can I get a total number of rows in a file (do not want to do it with loop). I'm reading CSV file. Example 1 CSV.open('clients.csv', 'r') Example 2 FasterCSV.foreach('clients.csv') Thx.

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• ASP.net looping through controls in a table

  - by c11ada

  hey all, i have a table which contains a bunch of dynamically created radio button lists, im trying to write code which will loop through each one of the radio button list and get the text value of the selected item. i have the following code foreach ( Control ctrl in Table1.Controls) { if (ctrl is RadioButtonList) { //get the text value of the selected radio button } } but i am stuck on how i can get the value of the selected item for that given control.

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• How to filter Wordpress posts using a hook in a plugin?

  - by Davide

  I'm creating a Wordpress plugin and, being a newbie in the development on this platform, I'm stuck on this problem. I'd like to have posts in the loop filtered by categories, defined by the user through an admin page. I would actually like to be able to modify query_post() parameters in the plugin, but the only trick I found is to re-run the query_post() with my user-defined criteria, thing that I would like to avoid. I'm sure the solution is evident, but can't find it!

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• Exact cin equivalent function in python

  - by gkt.pro

  Suppose user enter this string at terminal 123 456 456 //then hit enter How do I scan these three (could be more) numbers in different variables in python Could be something like this: for i in range(1,n) m[i]=#WHAT FUNCTION SHOULD I PUT HERE In c++ we can easily use cin>>m[i] inside above loop to scan the variables. If i use input() or raw_input() , they would scan whole line in single variable.

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• Is there a Chromeless player solution for videos hosted elsewhere besides Youtube?

  - by Classer

  I am looking for the abilities that Youtube's Chromeless player has to offer but for non-Youtube hosted videos such as Metacafe, Vimeo, Viddler, etc. Abilities I will need are : Mute/Unmute (toggle) Volume Loop Resize video dimensions Current play back position Load bar Can I use Chromeless player for videos hosted on other sites besides Youtube? If not is there a solution out there? If not, what languages/APIs would I need use and know to create such an application?

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• Need Help with Page Life Cycle(I think it is screwing me up)

  - by chobo2

  Hi I have dragged a empty asp.net table onto my webform. I generate all the rows in the code behind those. Now my table gets filled up and has dropdown lists. When the user hits save I go through all the rows and update the values from the dropdownlist in the db. This works all great. However if 2 columns have each have "Present" then those 2 columns should be not be shown anymore and 2 new columns get put in its place with other dropdown lists. This all works. However you have to refresh the entire page to for the 2 columns that should go away to go away. So what I tried to do is at the end of the button click event. Clear the whole table and then regenerate it. However when I do this then my values are not saved to the database anymore for whatever reason. if (IsPostBack == false) { // check if dummy variables exist in db- If true just generate tables with values in db. If not generate them. } else { // grab the values from the database // generate tables with the values } btn click event { go through all rows in table(foreach loop) update each column in the database with cells in each row. while in foreach loop. //done } So this is how it goes and it works expect(all correct values are saved) the table is just not updated to the user. Does not work if (IsPostBack == false) { // same code as above } // if postback is true do nothing. By the time it gets to the click event it says there is zero rows in the table so nothing happens. btn click event { // same code } Fails also. if (IsPostBack == false) { // same code as above } else { // same code as above but moved into its own method. gernerateTable(); } btn click event { // update all rows // once done clear the Tables rows // call generateTable() } This last one does nothing as for some reason it does not update anything. I don't understand why. So what am I doing wrong with this life cycle something in my process is wrong. The code works just not when I want the table to be updated right away.

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• Retrieve data from database

  - by martin

  I need to use C# to get data from database(sql) and the data in database is updated every few seconds. So do I have to make a loop or there is a better way to do that? Is it possible that when database is updating, the program can wait until it finishes updating? thx!

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• Iphone AVAudioPlayer programmatically change custom sound while looping a buffer?

  - by user319573

  Hey folks, I know I can play sound from a buffer and have that loop but does AVAudioPlayer make a copy of that buffer or can I change that buffer in real time just before the "player" position reaches it and have that sound change while it's playing? -Thanks all.

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• How to find the only UILabel in a view and hide it?

  - by tarnfeld

  I am adding a UILabel as a subview to a UIView and sometime later I want to hide it. It is assigned to a variable but I don't think setting the variables property Hidden after it's been added to the view will work (well it doesn't seem to anyway). Is there a way to loop through the subviews in a view and then find the one that has a specific tag or is of type UILabel that I could then remove?

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