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  • manyToManyField question

    - by dotty
    Hay guys, I'm writing a simple app which logs recipes. I'm working out my models and have stumbled across a problem My Dish models needs to have many Ingredients. This is no problem because i would do something like this ingredients = models.ManyToManyfield(Ingredient) No problems, my dish now can have many ingrendients. However, the problem is that the ingredient needs to come in different quantities. I.E 4 eggs, 7 tablespoons sugar My Ingredient Model is very simple at the moment class Ingredient(models.Model): name = models.TextField(blank=False) slug = models.SlugField(blank=True) How would i go about work out this problem? What fields would i need to add, would i need to use a 'through' attribute on my ManyToManyfield to solve this problem?

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  • DateTimeAxis - set Label to display Date + Time

    - by Jay
    Hi, Is there a way in flex 3 chart component to display both the date and time using horizontal DateTimeAxis? Currently the DateTimeAxis element has an attribute dataunits which allows to set the value to any of "milliseconds|seconds|minutes|hours|days|weeks|months|years" but I want to display the label as "2009/09/15 06:00:00" which includes the day and the time too. Here is the sample that i'm using [Bindable] public var deck:ArrayCollection = new ArrayCollection([ {date:"2009-09-15 06:00:00", close:42.71}, {date:"2009-09-16 06:15:00", close:42.99} ]); public function myParseFunction(s:String):Date { var sDate = s.substring(0,s.indexOf(" ")); var sTime = s.substring(s.indexOf(" ")); var aDate = sDate.split("-"); var aTime = sTime.split(":"); return new Date(aDate[0],(aDate[1]*1-1),aDate[2],aTime[0],aTime[1],aTime[2],0); } ]] Thanks in advance.

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  • What is Test Driven Development? Does it require to have initial designs?

    - by Nirajan Singh
    Hello Everybody, I am very new to TDD, not yet started using it. But i know that we have to write test first and then actual code to pass the test and refactor it till good design. My concern over TDD is that where does it fit in our SDLC. Suppose i get a requirement of making order processing system. Now, without having any model & design of this system, how can i start writing test. Shouldn't we require to define the entities & its attribute to proceed. If not, is it possible to develop big system without any design. I am really very confused over it. Can anyone help me to start TDD. Thanks in advance.

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  • Disable Link while animated Basket

    - by Dante
    Hi, I'm using this script for my online shopping basket: http://www.webresourcesdepot.com/fly-to-basket-effect-with-jquery/. Like people suggest in the comments it's easy buggy when you click multiple times on the same image. How can I disable the img link when it's clicked once and re-enable it when the product is added to the basket? I've tried setting the attribute HREF of to # in the beginning of the function, but that doesn't help. So when a user clicks the function needs to be executed, but the link should be disabled as long as the function is busy. thanks in advance for your help.

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  • Inline function and calling cost in C

    - by Eonil
    I'm making a vector/matrix library. (GCC, ARM NEON, iPhone) typedef struct{ float v[4]; } Vector; typedef struct{ Vector v[4]; } Matrix; I passed struct data as pointer to avoid performance degrade from data copying when calling function. So I thought designed function like this: void makeTranslation(const Vector* factor, Matrix* restrict result); But, if function is inline, is there any reason to pass values as pointer for performance? Do those variables copied too? How about register and caches? inline Matrix makeTranslation(Vector factor) __attribute__ ((always_inline)); How do you think about calling costs of each cases?

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  • Constant in Hibernate Mapping Files

    - by bertolami
    I would like to add a value object to a mapped class where one column is fixed depending of the class that contains the component. How can I do something like this? <component name="aComponent"> <property name="abc" column="cde"/> <property name="xyz" value="FIXED"/> </component> Unfortunatly, the value attribute does not exist. Is there another way to apply a constant value to property? Thanks in advance.

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  • Javascript parent page redirection from iframe.

    - by Danil
    Hello to all. I need to implement parent page redirection from iframe. I know that it is impossible to do in different domains due to browsers security. However I found that links have target attribute and tried to use it in the following way: <a href="http://google.com" target="_top" id="testParentRedirect">someLink</a> It works fine if I click this link manually, but I couldn't find cross-browser solution to simulate it using javascript. document.getElementById('testParentRedirect').click(); This works fine in IE, however Firefox and Safary don't know click function :). I tried to work with jquery, but for some reason they don't simulate click event for links. (see following post) I couldn't find any appropriate solution on stackoverflow. Maybe someone could help me in it. I will appreciate it. :)

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  • Closing the iframe which was opened for "ajax uploading"

    - by KPL
    Hello people, http://www.atwebresults.com/php_ajax_image_upload/ I am using this script for so-called AJAX file upload but which is actually based on opening of iframe and then submitting form from it. What my problem is, I am using this script in a form which will have some other fields too. So after uploading the image, when I click submit at the end of the form, the form is submitted to the file which was opened in iFrame. As I am not an expert in JS, can you guys help me with this? I tried changing the action attribute and tried to completely remove the form too, but nothing helped.

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  • Django 1.2 - Pb with a form in a template (WSGIRequest)

    - by Tom
    Hi, I'm trying to display a form on a template, but I get a fantastic error : Caught AttributeError while rendering: 'WSGIRequest' object has no attribute 'get' The error is in this line : {% for field in form.visible_fields %} My view : def view_discussion(request, discussion_id): discussion = get_object_or_404(Discussion, id=discussion_id) form = BaseMessageForm(request) return render(request,'ulule/discussions/view_discussion.html', { 'discussion':discussion, 'form':form, }) My form : class BaseMessageForm(forms.Form): message_content = forms.CharField(widget=forms.HiddenInput()) My template : <form action="" method="post"> {% csrf_token %} {% for field in form.visible_fields %} <div class="fieldWrapper"> {% if forloop.first %} {% for hidden in form.hidden_fields %} {{ hidden }} {% endfor %} {% endif %} {{ field.errors }} {{ field.label_tag }}: {{ field }} </div> {% endfor %} <p><input type="submit" value="Send message" /></p> </form> Thanks a lot for your help !

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  • How can I copy an XmlNode from one XmlDocument to another?

    - by Chris Wenham
    I'm building a tool that authors/edits XML files, and I want to be able to populate it with template fragments defined in another XML file. For example, the tool has an "Add FooBarBaz Element" button that adds a element to the new document being created, and I want to add FooBarBaz by copying it from a template. Or let's say this is my template file: <Templates> <FooBarBaz Attribute="Value"> <ChildElement/> </FooBarBaz> </Templates> I can then grab a template fragment with .GetElementsByTagName("FooBarBaz"), and I'd like to be able to inject it into the new document with something like .AppendChild(templateNode). But the problem is that an XmlNode cannot be copied from one XmlDocument to another, even if you use .Clone() or .CloneNode(), because AppendChild() throws an exception saying that the template element belongs to another context. Is there an easy way to copy a System.Xml.XmlNode between System.Xml.XmlDocuments?

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  • XSLT 1.0: Sorting by concating portions of date string

    - by dscl
    I'm trying to take XML data and sort elements by their data attribute. Unfortunately the dates come over in mm/dd/yyyy format and are not static lengths. (Jan = 1 instead of 01) So I believe the string will have to be parsed into three components and the month padded. The newly concated value (yyyymmdd) then sorted descending. Problem is I have no idea how to do this. Here is an example of the data <content date="1/13/2011 1:21:00 PM"> <collection vo="promotion"> <data vo="promotion" promotionid="64526" code="101P031" startdate="1/7/2011 12:00:00 AM"/> <data vo="promotion" promotionid="64646" code="101P026" startdate="2/19/2011 12:00:00 AM"/> <data vo="promotion" promotionid="64636" code="101P046" startdate="1/9/2011 12:00:00 AM"/> </collection> </content> Also can anyone please recommend a good book on learning XSLT? Thanks!

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  • How to change the size and color of Petrel "Attributes Labels" using Ocean

    - by Nautilus
    I add a property to a PolylineSet using the code below (In the Petrel UI they are named “Attribute labels”) using (ITransaction trans = DataManager.NewTransaction()) { trans.Lock(polylineSet); PolylinePropertyCollection ppc = polylineSet.CreatePropertyCollection(); trans.Lock(ppc); property = ppc.CreateProperty(PetrelProject.WellKnownTemplates.MiscellaneousGroup.General, name); trans.Commit(); } I would like to change the size and color. Does anyone know if this is possible via Ocean? I want to do this because these labels have a size of 1 and color black and it isn't a good default for me. Thanks in advance

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  • Issue with string in c#

    - by user1740381
    I have a problem with string in c#. I have following string : Here Fonts is the string array contains google fonts name : string fontsLink = "<link rel='stylesheet' id='fontrequest' href='http://fonts.googleapis.com/css?family='" + Fonts + "type='text/css' media='all'>"; this string is rendering wrong in the browser : <link rel="stylesheet" id="fontrequest" href="http://fonts.googleapis.com/css?family=" times+new+roman|offside|dangrek|days+onetype="text/css" media="all"> The problem is with the href attribute value. How can i solve this ?

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  • trigger click behaviour of image-map's area

    - by Amit
    I have a image map set up and each area in the image map has a href defined. the href on area contains urls to other pages in my application. i generate a have a small ul which lists down name attribute of the area tag. i want the dynamically generated ul/lis to imitate click behaviour of area tag. for this, i have the following jquery set up - $('li').click(function(e){ $('area[name='+$(this).html()+']').trigger('click'); }); but the above works well only in ie6+. ff does not fire the click event. i also tried the click() variant but to no avail. looking forward for some help. Thanks :)

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  • How to enable i18n from within setup_app in websetup.py ? (formatted resend)

    - by daniel
    From within the setup_app function (websetup.py) of a pylons i18n application, which is making use of a db, I was trying to initiate multilingual content to be inserted into the db. To do so the idea was something like: #necessary imports here def setup_app(command, conf, vars): .... for lang in langs: set_lang(lang) content=model.Content() content.content=_('content') Session.add(content) Session.commit() Unfortunately it seems that it doesn't work. the set_lang code line is firing an exception as follows: File ".. i18n/translation.py", line 179, in set_lang translator = _get_translator(lang, **kwargs) File ".. i18n/translation.py", line 160, in _get_translator localedir = os.path.join(rootdir, 'i18n') File ".. /posixpath.py", line 67, in join elif path == '' or path.endswith('/'): AttributeError: 'NoneType' object has no attribute 'endswith' Actually I'm even not sure it could be possible launching i18n mechanisms from within this setup_app function without an active request object. Anyone has tried some trick on a similar story ?

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  • Pass page scope attributes to a JSP using pagecontext.include for use in JSTL?

    - by hal10001
    We're using this JSP template solution almost verbatim at work: http://java.sun.com/developer/technicalArticles/javaserverpages/jsp_templates/ When it gets JSP pages to be included, it uses pageContext.include, which leaves us with one problem, and that is that we have a lot of scriplet code that gets initialized in the JSP itself (tag soup). My thought was to modify the template tag with an additional attribute that is a package path reference to a class with an init or execute method. That execute would get called first, and would add page context attributes before including the JSP. We would then use JSTL to access those attributes. However, I was told this wouldn't work because of how pageContext.include works, and the inability to pass through attributes scoped to the page. Is that true, and are there workarounds? I'm so-so on knowing all my scoping rules.

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  • Binding Properties.Settings to Textbox fails

    - by user268098
    I would like to define a key & value in Settings.settings and bind the value by declaration in the XAML (not in the code behind by command). Here's what I've been trying in vain: Create a WPF project "Exp1" with Visual Studio Express 2010. Set one key named "TextFromSettings" to the value "Some Text from Setting". Add the attribute xmlns:p="clr-namespace:Exp1.Properties;assembly=Exp1" to the tag. Add Text="{Binding Path=TextFromSettings, Mode=TwoWay, Source={x:Static p:Settings.Default}}" to the tag Now, the preview window shows the text, however, the compiler fails: "Error 1 Cannot find the type 'Settings'. Note that type names are case sensitive." Where am I going wrong?

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  • jquery disable rule validation on a single field

    - by shake
    I am using mvc to create forms that are generated at runtime. For validation, I am trying my hand at the jquery validation library which is very convenient to use. I have the validation expression of each field in the cdata attribute of the tag <input type="text" name="xyz" id="xyz" class="defaultTextBox" cdata="{validate:{required:true, decimal:true, messages: {required:'Please enter an decimal value', decimal:'Please enter a valid decimal'}}}"> This works beautifully. Now one more requirement I have is that some fields are being shown and hidden according to the logic on the page and I need to disable the validation on the hidden fields such that they do not interfere with the form submission. Just toggling the required:true to false and back to true should be enough. Only i do not know how. Anyone has any experience with that?

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  • Return a URI for local resource from a webservice

    - by peterkellyonline
    I want to design a webservice that returns a URI to a local resource on the webserver. What is the best (simplest) way to do this in C# using .asmx webservice? Or in other words - how can I get the URI for a physical file path in a webservice? Build a URI using the Uri class and the [WebService] namespace attribute? I know there is Server.MapPath(); that converts a virtual path into the corresponding physical path. I am looking for a way to do the opposite - having the physical path, I want to get not only the virtual path but the full URI. So if the webservice URI is http://some.server.com/services/example.asmx, the virtual path to the file I want to return is /Updates/file.xml and the physical path to that file is C:\Updates\file.xml what is the best way to get the URI http://some.server.com/updates/file.xml from that information? Thanks

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  • Trying to create a Reg Ex for the following patterns

    - by Travis
    Here are the patterns: Red,Green (and so on...) Red (+5.00),Green (+6.00) (and so on...) Red (+5.00,+10.00),Green (+6.00,+20.00) (and so on...) Red (+5.00),Green (and so on...) Each attribute ("Red,"Green") can have 0, 1, or 2 modifiers (shown as "+5.00,+10.00", etc.). I need to capture each of the attributes and their modifiers as a single string (i.e. "Red (+5.00,+10.00)", "Green (+6.00,+20.00)". Help?

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  • Empty dict-like collection problem in SQLAlchemy

    - by maksymko
    I have a mapping in SQLAlchemy that looks like this: t_property_value = sa.Table('property_value', MetaData, autoload = True, autoload_with = engine) orm.mapper(PropertyValue, t_property_value) t_estate = sa.Table('estate', MetaData, autoload = True, autoload_with = engine) orm.mapper(Estate, t_estate, properties = dict( property_hash = orm.relation(PropertyValue, collection_class = column_mapped_collection(t_property_value.c.property_id)) )) Now, everything seems to be fine, when I load the Estate object and it has some relations to PropertyValue objects. However, when it does not, then property_hash attribute is None, instead of being something dict-like, so I can not add new relations like this: estate.property_hash[prop_id] = PropertyValue(...) because I get the "'NoneType' object does not support item assignment" error. So, is there any way to force SQLAlchemy to create proper empty collection?

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  • What is a good practice for handling SQL connections within a WCF call?

    - by Rising Star
    Suppose I want to create a (stateless) WCF service with three methods exposed on an endpoint: performSqlOperationA(), performSqlOperationB(), and performSqlOperationC(). Each method inserts data into a SQL database. The way I've seen things done at my office, each method would begin with code to initialize a SqlConnection object. Each method would end with code to safely dispose it. What is a good practice for coding these WCF methods so that the SqlConnection object is initialized and disposed in each method without having to do these things in each method? I know that I can have the connection initialized in the constructor for the class for the WCF methods, but I don't know about disposing it... The calls cannot be wrapped in a using block. One solution I'm familiar with is PostSharp, which allows me to set an attribute which causes specific code to automatically run at the beginning and end of each method call, but it would be greatly preferable to do this with only the .net framework.

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  • ASP Repeater Evals mixed with HTML

    - by Bry4n
    I want to include HTML and Eval within a Repeater: <asp:Repeater ID="Rpt" runat="server" DataSourceID="DS"> <HeaderTemplate><div id="gallery"></HeaderTemplate> <ItemTemplate> <a href='<%# Eval("Url") %>' class="show"> <img src='<%# Eval("Image") %>' alt='<%# Eval("Title") %>' title="" runat="server" id="sb1" rel='<%# Eval("Title") %>'/></a> </ItemTemplate> <FooterTemplate></FooterTemplate> </asp:Repeater> I want the rel attribute Eval Title to have h3 tags wrapped around it. I've done this before, but I'm drawing a huge blank

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  • Fault address when malloc/free pthread_t across threads

    - by scleung
    Fault address occurred when i malloc pthread_t to save a newly created thread id and free it in another thread. Codes as follows: typedef struct _TaskInfo { // int dummy_int; pthread_t tid; } TaskInfo; void* dummy_task(void* pArg) { free(pArg); return NULL; } void create_task() { TaskInfo *pInfo; pthread_attr_t attr; // set detached state stuff ... pInfo = (TaskInfo*) malloc(sizeof(TaskInfo)); pthread_create(&pInfo->tid, &attr, dummy_task, pInfo); // destroy pthread attribute stuff ... } int main() { int i; while(i < 10000) { create_task(); ++i; } return 0; } When I uncomment the member dummy_int of TaskInfo it sometimes ran successfully, but sometimes failed. My platform is VMWare + Ubuntu 9.10 + ndk r3 Thanks!

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  • Lexical Analyzer(Scanner) for Language G by using C/C++

    - by udsha
    int a = 20; int b =30; float c; c = 20 + a; if(c) { a = c*b + a; } else { c = a - b + c; } use C++ / C to Implement a Lexer. 1. Create Unambiguous grammer for language G. 2. Create Lexical Analyzer for Language G. 3. It should identified tokens and lexemes for that language. 4. create a parse tree. 5. to use attribute grammer on a parse tree the values of the intrinsic attributes should be available on the symbol table.

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