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  • Django: Extending User Model - Inline User fields in UserProfile

    - by Jack Sparrow
    Is there a way to display User fields under a form that adds/edits a UserProfile model? I am extending default Django User model like this: class UserProfile(models.Model): user = models.OneToOneField(User, unique=True) about = models.TextField(blank=True) I know that it is possible to make a: class UserProfileInlineAdmin(admin.TabularInline): and then inline this in User ModelAdmin but I want to achieve the opposite effect, something like inverse inlining, displaying the fields of the model pointed by the OneToOne Relationship (User) in the page of the model defining the relationship (UserProfile). I don't care if it would be in the admin or in a custom view/template. I just need to know how to achieve this. I've been struggling with ModelForms and Formsets, I know the answer is somewhere there, but my little experience in Django doesn't allow me to come up with the solution yet. A little example would be really helpful!

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  • How do I convert from a possibly Windows 1252 'ANSI' encoded uploaded file to UTF8 in .NET?

    - by qqq123
    I've got a FileUpload control in an ASP.NET web page which is used to upload a file, the contents of which (in a stream) are processed in the C# code behind and output on the page later, using HtmlEncode. But, some of this output is becoming mangled, specifically the symbol '£' is output as the Unicode FFFD REPLACEMENT CHARACTER. I've tracked this down to the input file, which is Windows 1252 ('ANSI') encoded. The question is, How do I determine whether the file is encoded as 1252 or UTF8? It could be either, and How do I convert it to UTF8 if it is in Windows 1252, preserving the symbol £ etc? I've looked online but cannot find a satisfactory answer.

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  • A general question about compilation and interpretation.

    - by wucnuc
    Hi stackoverflow, I apologize in advance for the possible stupidity of this question. However, the following has been the source of some confusion for me and I know the people here will be able to handily clear up the confusion for me. Basically, I would like to finally understand the relationship between any and all of the following terms. Some of the terms I do actually understand pretty well, but some of them are similar in my mind and I would like to once and for all to see their relationships/distinctions laid out all at once. They are: compiler interpreter bytecode machine code assembler assembly language binary object code executable Ideally, an answer would use examples from Java and C++ and other well-known programming languages that a young-ish student like me would be familiar with. Also, if you want to throw in any other useful terms that would be fine too :)

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  • How do I UPDATE a Linked Server table where "alias" is required, in SQL Server 2000?

    - by Mark Hurd
    In SQL Server 2005 tablename can be used to distinguish which table you're referring to: UPDATE LinkedServer.database.user.tablename SET val=u.val FROM localtable u WHERE tablename.ID=u.ID In SQL Server 2000 this results in Server: Msg 107, Level 16, State 2 The column prefix 'tablename' does not match with a table name or alias name used in the query. Trying UPDATE LinkedServer.database.user.tablename SET val=u.val FROM localtable u WHERE LinkedServer.database.user.tablename.ID=u.ID results in Server: Msg 117, Level 15, State 2 The number name 'LinkedServer.database.user.tablename' contains more than the maximum number of prefixes. The maximum is 3. And, of course, UPDATE LinkedServer.database.user.tablename SET val=u.val FROM localtable u WHERE ID=u.ID results in Server: Msg 209, Level 16, State 1 Ambiguous column name 'ID'. (In fact searching on "The number name contains more than the maximum number of prefixes. The maximum is 3." I found the answer, but I've typed up this question and I'm going to post it! :-) )

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  • What are real-world examples of Gradle's dependency graph?

    - by Michael Easter
    As noted in the documentation, Gradle uses a directed acyclic graph (DAG) to build a dependency graph. From my understanding, having separate cycles for evaluation and execution is a major feature for a build tool. e.g. The Gradle doc states that this enables some features that would otherwise be impossible. I'm interested in real-world examples that illustrate the power of this feature. What are some use-cases for which a dependency graph is important? I'm especially interested in personal stories from the field, whether with Gradle or a similarly equipped tool. I am making this 'community wiki' from the outset, as it will be difficult to assess a 'correct' answer.

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  • What theoretical and/or experimental programming-language features are there?

    - by Gary Rake
    I'm designing a programming language, purely for fun, and want to add as many experimental features as I can, just to make programming in it something completely different, and that not in a bad way like Brainf*ck or Malbolge. However, I seem to be quite bad at coming up with new things for it but I'm sure that there are tons of things out there that have been talked about but never really tried out. What experimental language features or concepts not implemented in mainstream languages are there at the moment? E.g: If I asked this in, let's say, 1960, an answer could be "Object-oriented programming". I'm sure that there are a lot of unimplemented ideas computer-scientists have (recently) come up with, at least I was told so.

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  • Best method of including an abstract in a latex 'book'?

    - by olan
    Hello there. I've been looking for the answer to this question for a while now but can't seem to find it, so I'm hoping someone on here can help me. I'm writing up a thesis in Latex, and really like the \frontmatter, \mainmatter and \backmatter ability when using the "book" environment. However I need to add an abstract and the \begin{abstract} environment is undefined when creating a "book". If I change to a "report" however, I lose the functionality of the *matter terms. So what I really need to know is: is there a simple method of including an abstract in a "book" and have it formatted the same as it would be in a "report"? (i.e. centered vertically and horizontally with an 'abstract' heading) Thanks for any help! First post on stackoverflow after reading for months!

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  • How are a session identifiers generated?

    - by Asaf R
    Most web applications depend on some kind of session with the user (for instance, to retain login status). The session id is kept as a cookie in the user's browser and sent with every request. To make it hard to guess the next user's session these session-ids need to be sparse and somewhat random. The also have to be unique. The question is - how to efficiently generate session ids that are sparse and unique? This question has a good answer for unique random numbers, but it seems not scalable for a large range of numbers, simply because the array will end up taking a lot of memory.

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  • Fluent NHibernate beginner problem: How to convert single column data to custom class?

    - by Stefan Ahlm
    I am very new to Fluent NHibernate and I have a problem that I cant find the answer to. I have a string column in my database table, containing a mathematical expression i.e: "10 + 15 * 5". On my entity I have a property that I call Formula and this returns a class that contains the mathematical "formula" (not as a string). I beleive this post http://intellect.dk/post/Implementing-custom-types-in-nHibernate.aspx explains how to solve it for NHibernate. But I am not sure... How do I get this working with Fluent NHibernate?

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  • POST data to permant json file using PHP

    - by doxsi
    using a url, my idea is the any user can post data. For example via http://myweb.com/index.php?name=Peter&surname=Brown Using the "jedwards" answer, present here , I am hable to create a json an d save it to a file. <? /* This needs to be at the top of your file, without ANYTHING above it */ session_start(); /* ... */ if(!array_key_exists('entries', $_SESSION)) { $_SESSION['entries'] = array(); } $_SESSION['entries'][] = array("name" => $_GET["name"], "surname" => $_GET["surname"]); $json_string = json_encode($_SESSION['entries']); My problem is taht his is not permant amongst different session or user. It work only on the same session. On different sessionthe json built start from the beginning. Any idea about that?

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  • Digester: Extracting node name for a map<tagname, value>

    - by enguerran
    My question is close to this one: Digester: Extracting node name Even with the answer, I can't find out. Here is my xml file (from smartgwt RestDataSource POST): <data> <isc_OID_14> <attribute1>value1</attribute1> <attribute2>value2</attribute2> </isc_OID_14> </data> I would like to create, with Commons Digester, the following map : {attribute1=value1, attribute2=value2} I already have those lines: digester = new Digester(); digester.addObjectCreate("data", HashMap.class); // some "put" rules matching something like data/* return digester.parse(myFile); I do not know the list nor the name of tags in the <data><sourceId /></data>. isc_OID_14 or attribute1 can be named foobar or id or attribute335...

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  • Is it advisable to have non-ascii characters in the URL?

    - by Ravi Gummadi
    We are currently working on a I18N project. I was just wondering what are the complications of having the non-ascii characters in the URL. If its not, what are the alternatives to deal with this problem? EDIT (in response to Maxym's answer): The site is going to be local to specific country and I need not worry about the world wide public accessing this site. I understand that from usability point of view, It is really annoying. What are the other technical problem associated with this?

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  • Android Shopping App And SQLite

    - by Melih Mucuk
    I want to develop shopping app for android and it should works like tinypay.me Users can sign up and they sell items or buy items immediately. I need to database. I want to use SQLite but I don't find any answer to these questions: SQLite database files are stored on the user's phone, isn't it ? If it's true, here is the scenario: User logged in, then he/she wants to sells something on app. He/she creates ad and he/she published it on the app. These variables writing their database. When other users logged in, will they see this ad? If it's possible, how can sync database between users ? Thanks for attention.

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  • using multi-markers with multi info-windows

    - by mohsen
    I have an array of info-windows corresponding to an array of markers. Now, I have a problem, I use the below code to generate an info-window, when clicking on the marker all the markers disappear unless one, also when I click on that marker there is no info-window come out. What is the wrong with my code ? or what shall I do ? Any answer will be very appreciated, Thanks in advance. This code is inside a for loop: infoWindoArray[i][j] = new google.maps.InfoWindow({ content:"Lat: "+this.position.lat() + "\nLng: " + this.position.lng() + "\n"+ this.customInfo, }); google.maps.event.addListener(AllMarkers[i][j], 'click', (function(x) { return function() {infoWindoArray[i][j].open(map,AllMarkers[i][j]);} })(x));

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  • How to stream a WAV file?

    - by jonasb
    I'm writing an app where I record audio and upload the audio file over the web. In order to speed up the upload I want to start uploading before I've finished recording. The file I'm creating is a WAV file. My plan was to use multiple data chunks. So instead of the normal encoding (RIFF, fmt , data) I’m using (RIFF, fmt , data, data, ..., data). The first issue is that the RIFF header wants the total length of the whole file, but that is of course not known when streaming the audio (I’m now using an arbitrary number). The other problem is that I'm not sure if it's valid since Audacity doesn't recognise the file, and Windows Media Player opens the file but plays only a very small part. I've been reading WAV specs but haven’t found an answer. Any suggestions?

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  • Is the ruby operator ||= intelligent?

    - by brad
    I have a question regarding the ||= statement in ruby and this is of particular interest to me as I'm using it to write to memcache. What I'm wondering is, does ||= check the receiver first to see if it's set before calling that setter, or is it literally an alias to x = x || y This wouldn't really matter in the case of a normal variable but using something like: CACHE[:some_key] ||= "Some String" could possibly do a memcache write which is more expensive than a simple variable set. I couldn't find anything about ||= in the ruby api oddly enough so I haven't been able to answer this myself. Of course I know that: CACHE[:some_key] = "Some String" if CACHE[:some_key].nil? would achieve this, I'm just looking for the most terse syntax.

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  • Column.DbType affecting runtime behavior

    - by leppie
    Hi According to the MSDN docs, the DbType property/attribute of a Column type/element is only used for database creation. Yet, today, when trying to submit data to an IMAGE column on a SQLCE database (not sure if only on CE), I got an exception of 'Data truncated to 8000 bytes'. This was due to the DbType still being defined as VARBINARY(MAX) which SQLCE does not support. Changing the type to IMAGE in the DbType fixes the issue. So what other surprises does Linq2SQL attributes hold in store? Is this a bug or intended? Should I report it to MS? UPDATE After getting the answer from Guffa, I tested it, but it seems for NVARCHAR(10) adding a 11 char length string causes a SQL exception, and not Linq2SQL one. The data was truncated while converting from one data type to another. [ Name of function(if known) = ] A first chance exception of type 'System.Data.SqlServerCe.SqlCeException' occurred in System.Data.SqlServerCe.dll

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  • iPhone keyboard, Done button and resignFirstResponder

    - by nevan
    This is probably a dumb question, but I can't find the answer in the docs. Did the "Done" button on the pop-up keyboard always cause the keyboard to disappear? I see a lot of code around the web like this: - (BOOL)textFieldShouldReturn:(UITextField *)theTextField { [theTextField resignFirstResponder]; return YES; } When I press the "Done" button, the keyboard pops down and the UITextField resigns first responder. I'm presuming that pressing the "Done" button didn't used to cause a UITextField to resignFirstResponder, but that behavior changed at some time. I'm debugging on OS 3.0 - 3.1.3

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  • Unable to bind with any property of UserControl

    - by Agha Khan
    I looked your answer where I was also using this.DataContext=this. I am unable to convince myself why I have to remove it? But I did In my UserControl control I have 6 int properties (RedCount, GreenCount …) I am using .NET 3.5 and basically I wanted to use StringFormat with Binding. In my xaml file I have 6 Labels with I would like to bind, and I did what exactly you told in last reply. For some strange reasons it didn’t work. I don't know why it does not work. I placed break point in converter where I never hit it. This imples Binding failed.

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  • A good class structure for cleaning and using input?

    - by ciscoheat
    I want to be helpful to the users of a system, so I'll clean up the input a bit before testing if it can be used. So I have a flow like this: Input: aa12345b Clean input somehow: 12345 Test if clean input is valid Use input if valid Now I want to do this in a beautiful OO-fashion (IoC, interfaces, testable, no statics, you know). Any ideas how to organize a class structure for this? Is it good to have a Cleaner and a Parser/Validator class separately, or put them as methods in the data class itself? Thanks for any help or discussion about this, and extra thanks if the answer is in C#!

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  • Adding and altering multiple text items to a Canvas -- what approach?

    - by philologon
    I am attempting to use a Canvas to create a simple Cad application. I have been able to get lines to draw as I want. For now the only other thing I need is text. The user should be able to edit the text in place. ?Is one of these better to use for this over the others? Rich Text TextBlock TextBox Label A more important question, though, is once I have chosen which class to use for implementation, how do I set and get the text value in code? Since the app is in essence a cad application, text will be added, deleted, and altered often, so I am not attempting to put these in XAML, but code-behind. That is why I am asking about how to do this in code. If the answer is "use X.SetValue()" (or that family of methods), then please tell me what I am supposed to do with the required DependencyProperty reference? TIA. Paul

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  • Grabbing Data From Controls In Code Behind

    - by MKell43
    Hopefully this is a pretty simple question for someone to answer. I have a drop down list control that I need to pull the value from in the code behind of the page, modify it and redisplay it. The modifying and redisplaying I've got no problem with, it's grabing the value from the drop down control. Examples in C# would be appreciated as this web app I've been handed is already coded that way. I'm pretty new to .Net so be gentle and I already did some searching via Google and a little bit on the site here, but couldn't find anything that stood out as being the direction to go in to do this.

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  • A 4-byte Unsigned Int for Sql Server 2008?

    - by Jeff Meatball Yang
    I understand there are multiple questions about this on SO, but I have yet to find a definitive answer of "yes, here's how..." So here it is again: What are the possible ways to store an unsigned integer value (32-bit value or 32-bit bitmap) into a 4-byte field in SQL Server? Here are ideas I have seen: 1) Use a -1*2^31 offset for all values Disadvantages: need to perform math on the values before reading/writing/aggregating. 2) Use 4 tinyint fields Disadvantages: need to concatenate values to perform any operations 3) Use binary(4) Disadvantages: actually uses 4 + 2 bytes of space

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  • How to expose a constructor variable(sic!) as read-only?

    - by Malax
    Hi StackOverflow! I have this rather simple question about Scala. Given that i have to following class definition: class Foo(var bar: Int) The code which is able to construct an instance of Foo must be able to pass the initial value for bar. But if I define bar as var the User is also able to change its value at runtime which is not what I want. The User should only be able to read bar. bar itself is modified internally so a val is not an option. I think I might be getting an answer very soon as this question is so simple. :-) Cheers, Malax

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  • Get controller method caller (3rd party webservice)

    - by bastijn
    Is it possible to retrieve the URL of a 3rd party webservice calling my controller method? Things like Request.Current.Url refer to my own URL (/someController/someAction/). The 3rd party webservice is sending HTTP POST data to my /someController/someAction and I wish to send back a HTTP POST message to the caller of the method, the 3rd party webservice, without using return Content["some response"] which will force me to exit the method. Since the answer is plain text I would like to send it using HTTP Post. What I actually try to do is respond to the calling webservice without exiting my method (return Content() will exit) so I can call other methods to process the data send to me by the webservice. I want to first tell the webservice I received their stuff and than process, in this way when a processing error occurs the webservice at least will not resend old data. Is there another way to do this than building your own HTTP post?

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