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  • Saving a Django form to a csv file

    - by Oli
    I have a Django form that is working fine. I'd like to save the data it submits to a CSV file. Is there a "best practice" way to do this? I need to include blank fields in the CSV file where the user has not filled in a "required=False" field

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  • Django ModelAdmin.save_model() -vs- ModelAdmin.save_formset()

    - by anonymous coward
    I want to ensure that a user editing a particular model is saved in that models updated_by (FK User) field. I'm using mostly ModelForms (not necessarily the built in Admin), and wondering: In what cases would I need to override ModelAdmin.save_model() or ModelAdmin.save_formset()? Or, is that doing it wrong? If it's just the models' save() method that needs to be overridden, is there a proper way to access the request object there?

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  • read Number from text file using CPP stream

    - by Yongwei Xing
    Hi all I have a text file like below 2 1 2 5 10 13 11 12 14 2 0 1 2 99 2 200 2 1 5 5 1 2 3 4 5 1 0 0 0 I want to read file line by line, and read the umbers from each line. I know how to use the stream to read a fixed field line, but what about the non-fixed line? Best Regards,

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  • NoSuchMethodErrors say the darndest things

    - by keynan21
    So, I'm working in eclipse were everything compiles and runs correctly. However, when compiling under ant for the build server, A large number of tests fail with a NoSuchMethodError saying: class A implements B interface B extends C C requires method getSyncID() // standard getter for an int field. A.java contains getSyncID() A.class contains getSyncID() and yet the Error is still thrown. Does anyone know how the hell this could happen? how to fix it.

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  • how to specify literal value in linq union

    - by lowlyintern
    I have the following SQL query, note I want the literal value '0' in the second field in the second SELECT statement from the ItemSale table. How do I express this in LINQ? I get the error message 'Invalid anonymous type member declarator'. SELECT BranchNumber,QuantitySold FROM Department UNION SELECT BranchNumber,0 FROM ItemSale How to express the '0' in LINQ? var unionQuery = (from dept in Department select new { dept.BranchNumber, dept.QuantitySold, }) .Concat(from item in ItemSale select new { item.BranchNumber, 0 });

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  • Restricting copy,paste option for a particular UITextfield

    - by EXC_BAD_ACCESS
    Hi, My UIView contains Two UITextField.I need to restrict copy,paste option for one textfield.I don't want to restrict that for another. When i am using the following code,Both the field gets restricted from copy,paste. -(BOOL)canPerformAction:(SEL)action withSender:(id)sender { if ( [UIMenuController sharedMenuController] ) { [UIMenuController sharedMenuController].menuVisible = NO; } return NO; } Can any one provide me the solution to solve my problem.

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  • MS SQL/PHP truncating result text

    - by Derek Adair
    Hi, I have a MS SQL query that is selecting a field and it is being chopped off for some reason it is cutting off text at 257 characters. Is there some kind of default cut-off for retrieving results with MSSQL and PHP? I'm honestly clueless as to why this is happening. ANY guidance would be greatly appreciated

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  • c# Column datatype Date type (NOT DateTime)

    - by Sha Le
    Hi All: I want know is there good way to detect Column DataType for Date field (NOT DateTime)? This what currently I do: switch (dt.Columns[col].DataType.FullName) { case "System.DateTime": formatedVal = Formatter.GetDateTime(val); break; // which is NOT possible, but something equivalent am looking for case "System.Date": formatedVal = Formatter.GetDate(val); break; default: formatedVal = val.ToString(); break; } Thanks a bunch. :-)

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  • Add new property to a class at runtime using reflection...

    - by Lee
    I have some serialized data (using BinaryFormatter), and wanting to deserialise it. However the deserialise method failed since the current assembly does not have the deleted field. I want to be able to reconstruct earlier assembly at run-time in order to deserialise the data. Appreciated any pointer. Thanks.

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  • How can I securely check if a username is already taken?

    - by Geo
    I have a form where someone can create a new user. I'd like to add some AJAX to check if a username is taken, as soon as the input field loses focus. I'm not really sure how to go about this, as this could pave the way to bruteforce attack, since you could check for any username and see whether or not it exists. Any suggestions?

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  • How to read a simple file to fill a HyperTable with column qualifiers?

    - by Wajih
    I had been looking at the wiki/docs to see for a sample which teaches how to load column qualifiers from a file. Is there any such sample. Could you guide me on the following simple table? Specifically the field FromID which should contain, say FromID: person1 FromID: person2 create table stats (ID1,ID2,To,FromID, QUALIFIER INDEX FromID) My TSV file looks like this #SeQ ID1 ID2 To FromID 01099 3 4 me ---What would the entries be here?? Thank you for the guidance, Wajih

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  • Dynamic jQuery Validate error messages with AddMethod based on the element

    - by mcpDESIGNS
    Let's say I have a custom AddMethod to jQuery Validate like: $.validator.addMethod('min-length', function (val, element) { // do stuff // the error message here needs to be dynamic }, 'The field cannot be less than than ' + element.attr('data-min') + // it is within the closure, but it can't grab it ' length.'); I can't figure out a way to get the element variable in question, and get any values from it. What am I missing here?

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  • django DateTimeField list records by day

    - by dotty
    Hay, i have a field in one of my models which saves the creation date of an object created_on = models.DateTimeField(blank=False, auto_now_add=True) This works as expected. In my templates i want to list objects like this June 15 {{ objects here which was created on June 15 }} June 14 {{ objects here which was created on June 14 }} etc Any idea how i would go about doing this? Thanks in advance.

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  • Entity framework 4 add to many-to-many

    - by mehanik
    I have model whith 3 tabels and one is link table with additional field: Groups Id Name Users Id Name Roles Id Name LinkTable Id GroupId UserId RoleId The quuestion is how to add 3 related entities: Code bellow doesn't work. using (var db = new dbEntities()) { db.Groups.AddObject(Group.CreateGroup(1, "TestGroup")); db.Users.AddObject(User.CreateUser(1, "AdminUser")); db.Roles.AddObject(Role.CreateRole(1, "Admin")); db.UserGroupRoles.AddObject(UserGroupRole.CreateUserGroupRole(1, 1, 1, 1)); db.SaveChanges(); }

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  • How to embed a node on homepage in Drupal 6?

    - by Sushi
    How can I embed a node on the front page in Drupal 6. The node basically has the image upload field along with title and description. I want it to some how appear on the homepage alongwith a "views" which shows the uploaded images at the bottom. It's basically just an attempt at creating something like imageshack as an experiment. I am pretty n00b when it comes to drupal so please be more descriptive.

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  • sort date fields to obtain earliest date

    - by manu
    in my database , dates are stored in DD-mm-yyyy format , how can i sort this to obtain the earliest date ? Cursor c = myDb.query(TABLE, new String[]{"dob"}, null, null, null, null, "dob"); I have selected it to order by dob field but its not ordered ... This is the output for the above query 01-03 17:14:51.595: VERBOSE/ORDER DOB(1431): 01-11-1977 01-03 17:14:51.595: VERBOSE/ORDER DOB(1431): 01-12-1988 01-03 17:14:51.614: VERBOSE/ORDER DOB(1431): 15-01-1977 01-03 17:14:51.656: VERBOSE/ORDER DOB(1431): 31-01-1988

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  • Overriding initial value in ModelForm

    - by schneck
    Hi, in my Django (1.2) project, I want to prepopulate a field in a modelform, but my new value is ignored. This is the snippet: class ArtefactForm(ModelForm): material = CharField(widget=AutoCompleteWidget('material', force_selection=False)) def __init__(self, *args, **kwargs): super(ArtefactForm, self).__init__(*args, **kwargs) self.fields['material'].initial = 'Test' I also tried with self.base_fields, but no effect: there is always the database-value displaying in the form. Any ideas?

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  • What's wrong with consuming ConfiguredTaskAwaitable from PortableClassLibrary's class under Debugger from MSTest Runner or Console App?

    - by Stas Shusha
    *Its only Debug-time error, but a very weird one. Problem: While running with Debugger attached and calling a method, exposed in separate Portable library, returning ConfiguredTaskAwaitable, we get InvalidProgramException. Repro: Having 2 projects: PortableClassLibrary (supporting .Net 4.5; Windows Store; Windows Phone 8) with 1 class: public class Weird { public static ConfiguredTaskAwaitable GetConfiguredTaskAwaitable() { return new ConfiguredTaskAwaitable(); } } ConsoleApplication with code: static void Main(string[] args) { Weird.GetConfiguredTaskAwaitable(); } Notes: replacing ConfiguredTaskAwaitable with ConfiguredTaskAwaitable<T> (a generic version) fixes this strange issue consuming this method form WP8 or Win8 app under Debugger works fine. Currently it causes problems cause I cant run my Unit Tests under Debugger. I'm forced to change my "ObjectUnderTest" implementation to return generic ConfiguredTaskAwaitable<T>, which is fine for the real project, but still is only a workaround. The Question is: does anybody knows the reason of this error? It definitely related to Portable Class Library magic.

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  • SQL Server: how to create multiple text files from a table

    - by Patrick
    hi, I need to extract data from my SQL Server database into multiple text files. I have a table with 4 columns: UserID, UserName, Tag, Score. I need to create a text file for each Tag (so basically I need to group by Tag and order by score). Before to start I would like to know what's the fastest way to create several text files: File titles = TAG field each line = userID

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