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  • Design question?

    - by Mohamed
    I am building music app, where user can do several tasks including but not limited to listening song, like song, recommend song to a friend and extra. currently I have this model: class Activity(models.Model): activity = models.TextField() user = models.ForeignKey(User) date = models.DateTimeField(auto_now=True) so far I thought about two solutions. 1. saving a string to database. e.g "you listened song xyz" 2. create a dictionary about the activity and save to the database using pickle or json. e.g. dict_ = {"activity_type":"listening", "song":song_obj} I am leaning to the second implementation, but not quite sure. so what do you think about those two methods? do you know better way to achieve the goal?

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  • PHP 5.1.6 ArrayAccess error when iterating over object

    - by kenny99
    Hi, I'm having to develop a site on PHP 5.1.6 and I've just come across a bug in my site which isn't happening on 5.2+. When using foreach() to iterate over an object, I get the following error: "Fatal error: Objects used as arrays in post/pre increment/decrement must return values by reference..." Does anyone know how to get around this issue? if (strpos($post['feeding_type'], 'comm')) { foreach ($post['commercial_brands'] as $brand) { $comm_food = new Commercial_food_Model; $comm_food->brand = $brand; $comm_food->feeding_type_id = $f_type->id; $comm_food->save(); } }

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  • how to get id of the saved record in rails

    - by railsnew
    I am doing this from the console but i'd like to do this in my code too. Basically I am trying to add a record to the table and then get the id back. >> @record = Physician.create(:pname => "someone2") => #<Physician id: nil, pname: "someone2", pgroup: nil, created_at: nil, updated_at: nil, userid: nil, storeid: nil, licexpdate: nil, address: nil> >> @record.save => false >>

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  • How can I update only certain fields in a Django model form?

    - by J. Frankenstein
    I have a model form that I use to update a model. class Turtle(models.Model): name = models.CharField(max_length=50, blank=False) description = models.TextField(blank=True) class TurtleForm(forms.ModelForm): class Meta: model = Turtle Sometimes I don't need to update the entire model, but only want to update one of the fields. So when I POST the form only has information for the description. When I do that the model never saves because it thinks that the name is being blanked out while my intent is that the name not change and just be used from the model. turtle_form = TurtleForm(request.POST, instance=object) if turtle_form.is_valid(): turtle_form.save() Is there any way to make this happen? Thanks!

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  • Google Maps API v3.9: Blurry custom markers when zooming

    - by Mike
    So it appears that Google have fixed the blurry map issue with the 3.9 / 3.10 API, which is great. But there's a new one with custom markers. As soon as you zoom in one level, the custom markers become corrupted / blurry. They rectify themselves if zooming out, although the process of zooming out also makes the markers slightly blurry. The 3.8 API does not exhibit this problem with custom markers. Here's a picture illustrating the problem (I suggest you open the image in a new tab; the blurriness isn't as easily visible when the image is scaled to fit this post). The blurring is most noticeable with the straight lines of the paper crane marker: I've had a prod through the HTML, but I can't really tell how the markers are placed on the map. But I thought that I'd put this issue out there for anyone who has experienced similar, or if anyone has any thoughts on how this can be resolved, save waiting to see if it's a glitch in the API.

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  • WPF DrawingVisual from my own class

    - by Robbskinizer
    Hi, Im trying to create my own class which contains a DrawingVisual, something like this public class MyObject { public DrawingVisual visual; public bool faceup; public bool flipped; } I have a drag and drop from a listview to a canvas, but when I try to get the object which back from the Canvas i only get the visual, not any of the other stuff in the class. How do i save "objects" and retreive it from a canvas? Im using my own MyCanvas which inheritance from Canvas, and using the AddVisualChild & AddLogicalChild etc. // Robbin

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  • Smarty dynamic error list

    - by Brainscrewer
    Im new to Smarty in combination with PHP and I really like it. Unfortunatly im running into a problem while validating fields after a $_POST has been done. I've made an array called $errors and use that to save error messages in, for example: $errors[] .= "Wrong email";. My problem is in sending the $errors array over to the template so I can use it to display the error messages. My question: How do you 'transfer' the $errors variable over to the template file so you can use it there with, for example {foreach}. I was planning on doing something like {if $hasErrors} {foreach from=errors item=error} <li>{$error}</li> {/foreach} {/if} Thanks in advance

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  • update database problem with asp.net mvc 2

    - by ognjenb
    [AcceptVerbs(HttpVerbs.Post)] public ActionResult Numbers(int id, int val, int name) { int temp = val % 2; brojevi br = new brojevi(); if (temp == 1 && name == 1) { var nmb = (from n in numbers.brojevi where n.prvi_br == id select n).First(); br.prvi_br = nmb.prvi_br - 1; numbers.SaveChanges(); } var nm = from n in numbers.brojevi select n; return View(nm); } Data table brojevi have 3 fields but I have to change(update) only one of them (prvi_br). Why my solutions doesn't save changes to database

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  • Returning back to the results after editing

    - by Parhs
    Hello, I am developing an application which has several CRUD actions... I am using Java and i am forced to use Struts framework. My problem is: I have a search page which returns some results.The user can click at a result and then he goes to another edit-page... He may apply changes or not...What i need is a way to return at the result page again and at the same scroll position.Javascript must be enabled for this project however.. I am wondering which is the best practice to achieve this effect... A solution would be to save the last search URL but i know that this wouldnt work if the user has multiple results. I know how to do it but i am lloking for a good practice!

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  • Copy first row in excel workbook to a new excel workbook

    - by user1667414
    How do I get the first row in an excel workbook & save it to a new excel workbook using .net c#? I dont know the amount of columns so need to get entire row. This what I have but the new workbook is blank (no row copied) Excel.Workbook xlWorkbook = xlApp.Workbooks.Open(file); Excel._Worksheet xlWorksheet = xlWorkbook.Sheets[1]; Excel.Range xlRangeHeader = xlWorksheet.get_Range("A1", "A1").EntireRow; Excel.Workbook xlWorkbookNew = xlApp.Workbooks.Add(); Excel._Worksheet xlWorksheetNew = xlWorkbookNew.Sheets[1]; xlWorksheetNew.get_Range("A1", "A1").EntireRow.Value = xlRangeHeader; xlWorkbook.Close(false); xlWorkbookNew.SaveAs(Path.Combine(sDestination, Path.GetFileName(file)), fileFormat); xlWorkbookNew.Close(true);

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  • Change update value of property (LINQTOSQL)

    - by Dynde
    Hi... I've got an entity object - Customer, with a property called VATRate. This VATRate is in the form of a decimal (0.25). I wanted to be able to enter a percentage value, and save it in the correct decimal value in the database, so I made this custom property: partial class Customer{ public decimal VatPercent { get{ ... //Get code works fine} set { this.VATRate = (value / 100); } } } And then I just bind this property instead of VATRate in my ASPX editTemplate (formview). This actually works - at least one time, when I debug an update, the value is set correctly one time, and then right after it gets set to the old value. I can't really see why it sets the value twice (and with the old value the second time). Can anyone shed some light on this?

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  • repeat text animation, as3

    - by pixelGreaser
    Hi, My text animation works perfectly, but doesn't repeat. How do I get this to repeat? Sorry I don't know Flash that well, but I just want this to play over and over. Thanks. var myArray:Array = ["Big", "Holiday", "Sale", "Buy", "Now", "And", "Save"]; Timer var tm:Timer = new Timer(500,0); tm.addEventListener(TimerEvent.TIMER, countdown); function countdown(event:TimerEvent) { if (myArray.length>0){ tx.text = myArray.shift(); } } tm.start(); I tried this if (++myArray.length % 10 == 0)

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  • WatiN downloading a file from webpage

    - by user541597
    I have the following code which does a couple of webpage redirections and then clicks an tag which has a javascript fuction as the href. When it is called a file is download. My problem is I want to be able to download the file without being prompted to cancel, save or open. Please help I am using IE9 using (var browser = new IE("http:url.aspx")) { browser.TextField(Find.ByName("ctl00$ContentPlaceHolder1$Login1$UserName")).TypeText("cpereyra"); browser.TextField(Find.ByName("ctl00$ContentPlaceHolder1$Login1$Password")).TypeText("Maxipereyra15"); browser.Button(Find.ByName("ctl00$ContentPlaceHolder1$Login1$LoginButton")).Click(); browser.GoTo("http://it-motivity-cmc/Movation/MyPage/MyDashboard.aspx?dynamicdashboardid=ab000000-7dea-11c9-b596-d01e04bebb94"); while (browser.Eval("document.readyState") != "complete") { Thread.Sleep(1000); } Div div = browser.Div("ctl00_ContentPlaceHolder1_wrapper_vis_zone1_1"); div.Link(link => link.Text == "Export to CSV").Click(); }

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  • Design guidelines for cache mechanism

    - by Delashmate
    Hi All, I got assignment to write design for cache mechanism (this is work assignment, not homework), This is my first time writing a design document, Our program display images for doctors, and we want to reduce the parsing time of the images So we want to save the parsed data in advance (in files or inside database) Currently I have several design key ideas: Handle locks - each shared data structure should be handled, also files Test - add test to verify the data from the cache is equal to the data from the files To decouple the connection to the database- not to call directly to the database Cleanup mechanisem- to delete old files if the cahce directory exceed configurable threshold Support config file Support performance tool in the feature I will also add class diagram, data flow charts, and workflow What do you think I should add to the key ideas? Do you know good link to atricales about design? Thanks in advance, Dan

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  • How i can do image CROP in OpenCV

    - by Nolik
    How i can do image crop such in PIL in OpenCV. Working example on PIL im = Image.open('0.png').convert('L') im = im.crop((1, 1, 98, 33)) im.save('_0.png') But how i can do it on OpenCV? I wanted to do so im = cv.imread('0.png', cv.CV_LOAD_IMAGE_GRAYSCALE) (thresh, im_bw) = cv.threshold(im, 128, 255, cv.THRESH_OTSU) im = cv.getRectSubPix(im_bw, (98, 33), (1, 1)) cv.imshow('Img', im) cv.waitKey(0) But it doesnt work. I think, i wrong use getRectSubPix. If it true, please explain how i can correctly use this function. Thanks.

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  • C# arraylist can't compare objects after they are loaded from disk

    - by Zka
    To make it easy, lets say I have an arraylist allBooks containing class "books" and an arraylist someBooks containing some but not all of the "books". Using contains() method worked fine when I wanted to see if a book from one arraylist was also contained in another. The problem was that this isn't working anymore when I save both of the Arraylists to a .bin file and load them back once the program restarts. Doing the same test as before, the contains() returns false even if the compared objects are the same (have the same info inside). I solved it by overloading the equals method and it works fine, but I want to know why did this happen?

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  • SQL Stored Procedure fired from C# Code-Behind not working on UPDATE

    - by CSSHell
    I have a stored procedure called from a C# code-behind. The code fires but the update command does not get performed. The stored procedure, if run directly, works. I think I am having a brain fart. Please help. :) CODEBEHIND protected void btnAbout_Click(object sender, EventArgs e) { SqlConnection myConnection = new SqlConnection(strConnection); SqlCommand myCommand = new SqlCommand("spUpdateCMSAbout", myConnection); myConnection.Open(); myCommand.CommandType = CommandType.StoredProcedure; myCommand.Parameters.Add("@AboutText", SqlDbType.NVarChar, -1).Value = txtAbout.Text.ToString(); myCommand.ExecuteNonQuery(); myConnection.Close(); } STORED PROCEDURE ALTER PROCEDURE fstage.spUpdateCMSAbout ( @AboutText nvarchar(max) ) AS BEGIN SET NOCOUNT ON; UPDATE fstage.staticCMS SET About = @AboutText; END HTML <asp:Button ID="btnAbout" runat="server" Text="Save" CausesValidation="False" onclick="btnAbout_Click" UseSubmitBehavior="False" /> C# .NET 4.0

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  • How do I use an enum with custom values for a Sharepoint Web part?

    - by Jeff
    I'm trying to design a Web Part that has a drop-down list for the user to choose from. Eventually, these values will be automatically generated based on some kind of outside data source, so they're going to have somewhat arbitrary numeric values associated with them. This is the code I have now: public enum filterChoice { All=0, BOCC=12, Sustainability=15, Clerk=4, DA=13, Emergency=7, Highlights=3, POS=6, PR=1, PH=5, SHPR=2, Test=8, Transportation=14, Volunteer=16 }; These are different categories I want the user to choose from. When I choose one and save the settings for my Web Part, Sharepoint is only saving the values in numeric order; that is, All=0, BOCC=1, Sustainability=3 [...] so my Web Part then thinks the user chose the value with the corresponding number (PR when they chose BOCC, Highlights when they chose Sustainability, etc.) How can I make Sharepoint honor my custom values?

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  • How to use these ruby based CSS stylsheet frameworks languages?

    - by metal-gear-solid
    I read about many CSS related languages and tools which need ruby. What is the purpose of these languages and tool how these can save time and improve our CSS coding. What is the role in ruby language in these languages and tool. Will i have to install and learn ruby language to use these languages and tool. will i need ruby installed on webserver where website will be hosted. I'm talking abut these languages http://lesscss.org/ http://sass-lang.com/ http://compass-style.org/ some mentioned here: http://www.ruby-toolbox.com/categories/css_frameworks.html I'm on Windows XP PC , How can i use these Ruby based languages and which is preferred? I don't know ruby language.

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  • having problems in running my java program..

    - by Tarun
    I'm a beginner in java so this question might seem a little stupid, my jdk and jre are installed in C:\program files, I write my program and save it in in my folder G:\start, now my program compiles without any error(the .class file is also generated), but when i run my program it says "unable to locate G:\lib\amd64\jvm.cfg", so i copy the 'lib' folder from my jdk folder and paste it in G:, again program compiles without any error, but when i run it,it gives my a new error saying "unable to locate G:\bin\server\jvm.dll",so i copy the 'bin' folder to g:, but now when i run, it gives me the same error again "unable to locate G:\bin\server\jvm.dll",where am I going wrong?

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  • Storing task state between multiple django processes

    - by user366148
    I am building a logging-bridge between rabbitmq messages and Django application to store background task state in the database for further investigation/review, also to make it possible to re-publish tasks via the Django admin interface. I guess it's nothing fancy, just a standard Producer-Consumer pattern. Web application publishes to message queue and inserts initial task state into the database Consumer, which is a separate python process, handles the message and updates the task state depending on task output The problem is, some tasks are missing in the db and therefore never executed. I suspect it's because Consumer receives the message earlier than db commit is performed. So basically, returning from Model.save() doesn't mean the transaction has ended and the whole communication breaks. Is there any way I could fix this? Maybe some kind of post_transaction signal I could use? Thank you in advance.

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  • Which is the best design practice for edit data in RIA?

    - by Onet Two
    Hi, First of all it is a UI design question! Which is the best design practice for edit data in RIA, for example in Flex or Silverlight? I would like to show customer's details, but there will be an edit window, than the datas of customer will be editable. I would like to show a new form where the data can be edited. What is the simplest way to show this form. I can make my ui tabbed, so I can open the form in a new tab, or I can open the form in a popup/modal dialog (Save-cancel). Maybe I can use in line editing. What is the most user friendly solution in a Silverlight or Flex GUI? What is your opinion? Thanks!

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  • How can I use git to stage only one line in a file for commit, all from a script?

    - by Sandy
    I'm writing a simple pre-commit git hook that updates the year in copyright headers for files that are staged for commit. After modifying the line with the copyright, I would like the hook to stage that line so that it is part of the commit. It can't just git add the whole file, because there may be other pre-existing changes in there that shouldn't be staged. I don't see any options in the git add manual the let you stage specific lines. I figure I could git stash save --keep-index, apply my change, git add the file, and then git stash pop, but that seems rather crude. Any better approaches?

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  • What is the recommended way to split messages in send pipelines?

    - by ToxicAvenger
    I need to split a bizTalk message in the send pipeline. This is easy with disassemblers in receive pipelines, but doesn't work in send pipelines (makes sense). So what is the recommended way to do it? The only easy way to do it is to write the outbound message to file, then reprocess it using a receive pipeline with a disassembler, and then send the generated messages through a outbound pipeline. Honestly, I don't need the additional roundtrip through the message box, but I don't want to create a custom send adapter. Any other suggestions? Any easy way to save messages with multiple parts using the ootb file adapter?

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  • Custom changeable handler when a Service finishes downloading a file

    - by jax
    I have a Service that downloads a file from the internet. What I want is for the response (an InputStream in this case) to be handled by a custom handler that can be switched (like a strategy pattern) but I can't figure out how to do this. So basically the User of the API would be able to plug in different handlers for the response, some would parse XML, others might save files etc. I realise I could pass through the activity context and execute the method from this (given some interface) but I don't want to do this obviously, in case the Activity is closed in the meantime while the file is still downloaded. How might I do this?

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