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  • Django: Converting an entire Model into a single dictionary

    - by LarrikJ
    Is there a good way in Django to convert an entire model to a dictionary? I mean, like this: class DictModel(models.Model): key = models.CharField(20) value = models.CharField(200) DictModel.objects.all().to_dict() ... with the result being a dictionary with the key/value pairs made up of records in the Model? Has anyone else seen this as being useful for them? Thanks. Update I just wanted to add is that my ultimate goal is to be able to do a simple variable lookup inside a Template. Something like: {{ DictModel.exampleKey }} With a result of DictModel.objects.get(key__exact=exampleKey).value Overall, though, you guys have really surprised me with how helpful allof your responses are, and how different the ways to approach it can be. Thanks a lot.

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  • Do you have to call .Save() when modifying a application setting that is bound to a control property

    - by Jordan S
    I am programming in .NET I have an application setting of type string. On my form I have a textbox. I bound the text property of the textbox to my application setting. If I type something in the textbox it changes the value that is held in the Application setting but the next time I start the program it goes back to the default value. Do I need to call Properties.Settings.Default.Save(); after the text is entered for the new value to be saved? Shouldn't it do this automatically? Is there a way I can make it do it automatically?

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  • C++: Checking for non-numeric input and assigning to a double

    - by Brundle
    Here is the code I have at the moment: char ch; int sum = 0; double values[10]; int i = 0; cin >> ch; while (!isalpha(ch)) { values[i] = ch; sum += values[i]; i++; cin >> ch; } What is happening is that if I enter the value 1, that gets assigned to ch as a char. Now ch is assigning it's value to a double and doing an implicit cast. So it is assigning the ASCII value of '1' to values[i]. I want it to just assign 1 to values[i]. Is there a better way to do this? Or is there something that I'm missing?

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  • Debugging metaprograms [C++]

    - by atch
    Hi, Is there any way to check step by step what's going on in let's say template? I mean how it is instantiated step by step and so on? In book I've mentioned here , I found (2 minutes ago) quite interesting example of how binary could be implemented as a metafunction. template <unsigned long N> struct binary { static unsigned const value = binary<N/10>::value << 1 // prepend higher bits | N%10; // to lowest bit }; template <> // specialization struct binary<0> // terminates recursion { static unsigned const value = 0; }; and I think it could be quite useful to be able to see step by step what's been done during the instantiation of this template. Thanks for your replies.

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  • Linq to SQL DateTime values are local (Kind=Unspecified) - How do I make it UTC?

    - by ericsson007
    Isn't there a (simple) way to tell Linq To SQL classes that a particular DateTime property should be considered as UTC (i.e. having the Kind property of the DateTime type to be Utc by default), or is there a 'clean' workaround? The time zone on my app-server is not the same as the SQL 2005 Server (cannot change any), and none is UTC. When I persist a property of type DateTime to the dB I use the UTC value (so the value in the db column is UTC), but when I read the values back (using Linq To SQL) I get the .Kind property of the DateTime value to be 'Unspecified'. The problem is that when I 'convert' it to UTC it is 4 hours off. This also means that when it is serialized it it ends up on the client side with a 4 hour wrong offset (since it is serialized using the UTC).

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  • C# log base 10 and rounding up to nearest power of 10?

    - by Tom
    Hi, if i have a number between 100 and 1000 i want to get the value 3 because 10^3 = 1000. Likewise, if i had a number between 10 and 100 i would want to get the value 2, because 10^2 is 100. Incase you're wondering, its to do with calculating a probability and i always need to divide through by 10^value, to keep the probability between 0 and 1. For example if i calculate 9256, i need to divide through by 10^4, so that i get a probability of 0.92 I'm not sure how to do the rounding up and how to do the base 10, could someone please help?

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  • About Attributes member of LUID_AND_ATTRIBUTES used in TOKEN_PRIVILEGES structure

    - by Astaroth
    MSDN article, Enabling and Disabling Privileges in C++, provided the a code example to show how to enable or disable a privilege in an access token. I quote the part in questioned: tp.PrivilegeCount = 1; tp.Privileges[0].Luid = luid; if (bEnablePrivilege) tp.Privileges[0].Attributes = SE_PRIVILEGE_ENABLED; else tp.Privileges[0].Attributes = 0; What is the meaning of zero value for Attributes member? According to the documentation of TOKEN_PRIVILEGES structure, the attributes of a privilege can be a combination of the following values: SE_PRIVILEGE_ENABLED  (it is 0x00000002L in WinNT.h) SE_PRIVILEGE_ENABLED_BY_DEFAULT  (it is 0x00000001L in WinNT.h) SE_PRIVILEGE_REMOVED  (it is 0x00000004L in WinNT.h) SE_PRIVILEGE_USED_FOR_ACCESS  (it is 0x80000000L in WinNT.h) So, we don't see any valid constant with a value of zero. I guess, the zero is equal to SE_PRIVILEGE_REMOVED. Anybody here could explain what the zero value really does?

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  • Embedded YouTube video slows down page load

    - by Tom S
    Hi, total newbie here - trying to figure out how to make a page load faster with 1 embedded YouTube video on it - a very modest page takes an extra 5 seconds to completely load with the YouTube player showing up. I'd either like the page to load first or to only load the video when user clicks on it - don't know how to do that.. Here is the YouTube video embed code: <object width="480" height="385"><param name="movie" value="http://www.youtube.com/v/kfZIIKVfJ1w&hl=en_US&fs=1&rel=0&hd=1"></param><param name="allowFullScreen" value="true"></param><param name="allowscriptaccess" value="always"></param><embed src="http://www.youtube.com/v/kfZIIKVfJ1w&hl=en_US&fs=1&rel=0&hd=0" type="application/x-shockwave-flash" allowscriptaccess="always" allowfullscreen="true" width="480" height="385"></embed></object> Thanks for your help!

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  • Reading from CSVs in Python repeatedly?

    - by matt
    I'm trying to check the value of extracted data against a csv I already have. It will only loop through the rows of the CSV once, I can only check one value of feed.items(). Is there a value I need to reset somewhere? Is there a better/more efficient way to do this? Thanks. orig = csv.reader(open("googlel.csv", "rb"), delimiter = ';') goodrows = [] for feed in gotfeeds: for link,comments in feed.items(): for row in orig: print link if link in row[1]: row.append(comments) goodrows.append(row)

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  • making mysql query using splite string?

    - by Marco
    lets say i have a group of number like (3,2,5) the normal way i use to split them and searching mysql to get value is to split them using explode in PHP EXAMPLE $string = '3,4,5'; $array = explode(',',$string); foreach($array as $value){ $query = 'SELECT ID FROM TABLE WHERE ID = "'.$value.'"'; } it work like this but it make the script extremely slow i need now if there is away to split this string into the query it self and return the result without looping with PHP ?

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  • pass parameter from jsp to struts 2 action

    - by andrey_groza
    I have an e-store application and I want to pass item id to the action every time the button for that item is pressed. my jsp : <s:submit value="addToCart" action="addToCart" type="submit"> <s:param name="id" value="%{#cpu.id}" /> </s:submit> action: public class ProductsCPU extends BaseAction implements Preparable, SessionAware { private static final long serialVersionUID = 2124421844550008773L; private List colors = new ArrayList<>(); private List cpus; private String id; public String getId() { return id; } public void setId(String id) { this.id = id; } When I print id to console, it has the NULL value. What is the problem?

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  • Why this script is not validating the form

    - by danishjan
    This is registration form code. i wrote script in one i have accessed every element by Id and in One by name but both donot validation it. <div id="form"> <form action="" method="get" id="formdata" > <p> <label for="firstName" class="labels">&nbsp; &nbsp;First Name </label> <input type="text" name="firstName" id="firstName" placeholder="First Name" /> <label for="firstName" id="errorfirstName" style="color:red; font- size:14px; visibility:hidden;"> Please Enter First Name </label> </p> <p> <label for="lastName" class="labels">&nbsp; &nbsp;Last Name </label> <input type="text" name="lastName" id="lastName" placeholder="Last Name" /> <label for="lastName" id="errorlastName" style="color:red; font-size:14px; visibility:hidden;"> Please Enter Last Name</label> </p> <p> <label for="fatherName" class="labels">Father Name</label> <input type="text" name="fatherName" id="fatherName" placeholder="Father Name" /> <label for="fatherName" id="errorfatherName" style="color:red; font- size:14px; visibility:hidden;"> Please Enter Father Name </label> </p> <p> <label for="classNo" class="labels">&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;Class </label> <input type="text" name="classNo" id="classNo" placeholder="Class" /> <label for="classNo" id="errorclassNo" style="color:red; font-size:14px; visibility:hidden;"> Please Enter Class </label> </p> <p> <label for="address" class="labels">&nbsp; &nbsp; &nbsp; &nbsp;Address </label> <input type="text" name="address" id="address" placeholder="Address" /> <label for="address" id="erroraddress" style="color:red; font-size:14px; visibility:hidden;"> Please Enter Address </label> </p> <p> <input type="submit" value="Submit" onSubmit="return validate()" /> </p> </form> And the JavaScript Code is here. What is wrong with this code. This code is through accessing by Element Id. <script type="text\javascript"> function validate(){ var valid=true; var fname=document.getElementById("firstName"); var lname=document.getElementById("lastName"); var fathname=document.getElementById("fatherName"); var classno=document.getElementById("classNo"); var address=document.getElementById("address"); var errfname=document.getElementById("errorfirstName"); var errlname=document.getElementById("errorlastName"); var errfathname=document.getElementById("errorfatherName"); var errclass=document.getElementById("errorclass"); var erraddress=document.getElementById("erroraddress"); if(fname.value == ""){ errfname.style.visibility="visible"; valid=false; } if(lname.value == ""){ errlname.style.visibility="visible"; valid=false; } if(fathname.value == ""){ errfathname.style.visibility="visible"; valid=false; } if(classno.value == ""){ errclass.style.visibility="visible"; valid=false; } if(address.value == ""){ erraddress.style.visibility="visible"; valid=false; } return valid; } </script>

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  • how to get IndexPath

    - by user145883
    in iphone application. I'm trying to get indexPath.row value to do something on the basis of row selected in programmatically created tableview. Can someone please tell me why is the indexPath.row value is not coming correct. It's some thing like 21487...3? NSUInteger nSections = [myTableView numberOfSections]; NSUInteger nRows = [myTableView numberOfRowsInSection:nSections]; NSIndexPath *indexPath = [NSIndexPath indexPathForRow: nRows inSection:nSections]; NSLog(@"No of sections in my table view %d",nSections); NSLog(@"No of rows in my table view %d",nRows); NSLog(@"Value of selected indexPath Row %d", indexPath.row); Thanks, Aaryan

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  • jQuery code .val(); not working in FF

    - by SzamDev
    Hi I have this code function calculateTotal() { var total = 0; $(".quantity").each(function() { if (!isNaN(this.value) && this.value.length != 0) { total += parseFloat(this.value); } }); $("#total_quantity").val(total); } <input onchange="calculateTotal();" name="sol1" type="text" class="result_form_textbox_small quantity" id="sol1" /> <input name="total_quantity" type="text" class="result_form_textbox_small" id="total_quantity" /> This code is working in IE very good but it's not working in FF. What is the proplem? Thanks in advance.

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  • How to access base (super) class in Delphi?

    - by Niyoko Yuliawan
    In C# i can access base class by base keyword, and in java i can access it by super keyword. How to do that in delphi? suppose I have following code: type TForm3 = class(TForm) private procedure _setCaption(Value:String); public property Caption:string write _setCaption; //adding override here gives error end; implementation procedure TForm3._setCaption(Value: String); begin Self.Caption := Value; //it gives stack overflow end;

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  • error “EXC_BAD_ACCESS” in my programm

    - by zp26
    Hi, i have a problem. When i compile my program there isn't a error but, when i start it these retern with “EXC_BAD_ACCESS”. I looking for the error with the debug and i find it in these method but i don't understand where... Can you help me? Thanks and sorry for the english. PS:the program enters in the loop sometimes. -(void)updateMinPosition{ float valueMinX = 150; float valueMinY = 150; float valueMinZ = 150; NSString *nameMinimoX = [NSString stringWithFormat:@"default"]; NSString *nameMinimoY = [NSString stringWithFormat:@"default"]; NSString *nameMinimoZ = [NSString stringWithFormat:@"default"]; for(int i = 0; i< [arrayPosizioniMovimento count]; i++){ //Posizione is my class. It contain a NSString name, 3 float valueX, valueY, valueZ Posizione *tempPosition; tempPosition = [[Posizione alloc]init]; tempPosition = [arrayPosizioniMovimento objectAtIndex:i]; if(tempPosition.valueX <= valueMinX){ valueMinX = tempPosition.valueX; nameMinimoX = tempPosition.nome; } if(tempPosition.valueY <= valueMinY){ valueMinY = tempPosition.valueY; nameMinimoY = tempPosition.nome; } if(tempPosition.valueZ <= valueMinZ){ valueMinZ = tempPosition.valueZ; nameMinimoZ = tempPosition.nome; } [tempPosition dealloc]; } labelMinX.text = nameMinimoX; labelMinY.text = nameMinimoY; labelMinZ.text = nameMinimoZ; }

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  • JSTL request attribute in c:if

    - by JNPW
    I set an request attribute in my action class as follows: request.setAttribute("xFg",Boolean.TRUE); I want to retrive this in my JSP. I want to retrive them using JSTL tags. I tried this : <c:if test="${requestScope.xFg}"> <c:set var="showlist" value="true" /> </c:if> But c:if didnt work, i mean it didnt goto c:set I tried to print the sameusing c:out but nothing got displayed. What is wrong or How should i test request attribute value. I havent used requestScope so far. Is requestScope the option to get the request value? pls help.Thanks in advance.

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  • Microsoft SQL Server xml data

    - by cf_PhillipSenn
    This site has a technique to pass xml data around in Microsoft SQL Server: DECLARE @productIds xml SET @productIds ='<Products><id>3</id><id>6</id><id>15</id></Products>' SELECT ParamValues.ID.value('.','VARCHAR(20)') FROM @productIds.nodes('/Products/id') as ParamValues(ID) But what is the syntax if I add another field? The following does NOT work: DECLARE @productIds xml SET @productIds ='<Products><id>3</id><descr>Three</descr><id>6</id><descr>six</descr><id>15</id><descr>Fifteen</descr></Products>' SELECT ParamValues.ID.value('.','VARCHAR(20)') ,ParamValues.descr.value('.','VARCHAR(20)') FROM @productIds.nodes('/Products/id') as ParamValues(ID) Note: Maybe I've constructed my xml wrong.

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  • Why can't I decrease the line-height of this text?

    - by daGUY
    http://jsfiddle.net/mJxn4/ This is very odd: I have a few lines of text wrapped in an <em> tag. No matter what I do, lowering the value for line-height below 17px has no effect. I can bump the line-height up to greater than 17px and it'll apply, but I can't get it lower than 17px. The CSS in question is: #others .item em { font-size: 13px; line-height: 17px; } Try adjusting the line height both higher and lower and run the updated fiddle after each change, and you'll see what I mean. Why would this be? No line-height is specified anywhere else in the CSS, so nothing is overriding it. That couldn't be the case anyway because I'm adjusting the line-height up and down within the same selector, so it doesn't make sense that a higher value would apply, but a lower value would get overridden.

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  • I can't upload a file with CGIHTTPServer

    - by sdemingo
    Hi all, I'm using the CGIHTTPServer to implement a simple cgi server. I'm trying to upload a file by a form with the post method and the multipart/form-data enctype but I have problems when I recover the value of the fields in the cgi script. When the script catch the form fields, the value of the file is a MiniFieldStorage with two fields only (key and file name), and I can't recover the content of the file. As the API doc shows, this content is in value field of a StorageField but in the MiniFieldStorage this field isn't exits. ¿How can I recover a StorageField with the content of the file instead a MiniStorageField? ¿There are other method to upload a file using CGIHTTPServer? Thanks a lot

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  • Why does do this code do if(sz !=sz2) sz = sz2 !?!

    - by acidzombie24
    For the first time i created a linq to sql classes. I decided to look at the class and found this. What... why is it doing if(sz !=sz2) { sz = sz2; }. I dont understand. Why isnt the set generated as this._Property1 = value? private string _Property1; [Column(Storage="_Property1", CanBeNull=false)] public string Property1 { get { return this._Property1; } set { if ((this._Property1 != value)) { this._Property1 = value; } } }

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  • Performing an operation based on values within an array

    - by James W.
    I'm trying to figure out how to do operations based on values in an array. The values are taken from a string and inserted into the array e.g num = TextBox.Text.Split(' '); results = Convert.ToDouble(num[0]); for (int i = 0; i < num.Length - 1; i++) { if (num[i] == "+") { results += Convert.ToDouble(num[i++]); } ... } So based on this, let's say the TextBox string value was "1 + 2". So the array would be: ------------- | 1 | + | 2 | ------------- 0 1 2 (indexes) The part I'm having trouble with is Convert.ToDouble(num[i++]).. I've tried num[1] + 1, num[i + 1], etc I'm trying to figure out how to get it to perform the operation based on the first value and the value in the index after the operator. Which is the correct way to do something like this?

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  • Assigning variables to pointers

    - by tys
    When compiling the below, the program seem to crash. However, there is no error in the compiling process. ... int *x; *x = 3; printf("%d", *x); ... From what I know, this program initializes the pointer *x to an integer value, and subsequently assigns the value of 3 to the deferenced pointer *x. So why does the program crashes? If I do this instead, the program can work normally. ... int *x, y; y = 3; x = &y; printf("%d", *x); ... So, what seems to be the problem with the skipping of the y variable, and instead, assigning the pointer *x directly to an integer value?

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  • Javascript A thank you page with user name on it

    - by Sarahfromnowhere
    I have a form where a user input name and other contact information. I validate the input and then redirect to a thank you page. I wanted to personalize the page by having the user name appear as part of the thank you note. I tried document.getElementById(Name1).value to retrieve the value of the Name but it it is giving Undefined. Is there a way for me to set the value of the Name1 field to another variable that I call again to include it in my text message?

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  • How Do I Reference An Element By Name With [] Brackets In It?

    - by user384030
    How do you reference a element in jquery BY NAME that has the [] in it. <select name="values[]" multiple="true"> <option value="1">1</option> <option value="2">2</option> <option value="2">2</option> </select> <script type="text/javascript"> $('[name=values[]]'); </script> this should grab the element, but it does not work, I believe the [] in the name is messing it up, escaping it doesn't seem to work either. I can't figure out what I'm doing wrong

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