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  • What does using RESTful URLs buy me?

    - by Spike Williams
    I've been reading up on REST, and I'm trying to figure out what the advantages to using it are. Specifically, what is the advantage to REST-style URLs that make them worth implementing over a more typical GET request with a query string? Why is this URL: http://www.parts-depot.com/parts/getPart?id=00345 Considered inferior to this? http://www.parts-depot.com/parts/00345 In the above examples (taken from here) the second URL is indeed more elegant looking and concise. But it comes at a cost... the first URL is pretty easy to implement in any web language, out of the box. The second requires additional code and/or server configuration to parse out values, as well as additional documentation and time spent explaining the system to junior programmers and justifying it to peers. So, my question is, aside from the pleasure of having URLs that look cool, what advantages do RESTful URLs gain for me that would make using them worth the cost of implementation?

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  • Open Source Web Frameworks : Security

    - by trappedIntoCode
    How secure are popular open source web frameworks? I am particularly interested in popular frameworks like Rails and DJango. If I am building a site which is going to do heavy e-commerce, is it Ok to use frameworks like DJango and Satchmo? Is security compromised because their open architecture ? I know being OS does not mean being down right open to hackers, Linux uses superb authentication mechanism, but web is a different game. What can be done in this regard? UPDATE: Thanks for answers guys. I understand that I will have to find a suitable hosting service for a secure e-commerce application and that additional layers of security will be needed. I understand that Django and Rails have been designed keeping security aspects in mind, the most common form attacks like XSS, Injections etc. (Django book has a ch on Security) I was expecting comments from security Gurus. If you are a security Guru, would you recommend an important site, which is likely going to be popular, to be built on DJango or Rails?

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  • How to clean-up an Entity Framework object context?

    - by Daniel Brückner
    I am adding several entities to an object context. try { forach (var document in documents) { this.Validate(document); // May throw a ValidationException. this.objectContext.AddToDocuments(document); } this.objectContext.SaveChanges(); } catch { // How to clean-up the object context here? throw; } If some of the documents pass the the validation and one fails, all documents that passed the validation remain added to the object context. I have to clean-up the object context because it may be reused and the following can happen. var documentA = new Document { Id = 1, Data = "ValidData" }; var documentB = new Document { Id = 2, Data = "InvalidData" }; var documentC = new Document { Id = 3, Data = "ValidData" }; try { // Adding document B will cause a ValidationException but only // after document A is added to the object context. this.DocumentStore.AddDocuments(new[] { documentA, documentB, documentC }); } catch (ValidationException) { } // Try again without the invalid document B. this.DocumentStore.AddDocuments(new[] { documentA, documentC }); This will again add document A to the object context and in consequence SaveChanges() will throw an exception because of a duplicate primary key. So I have to remove all already added documents in the case of an validation error. I could of course perform the validation first and only add all documents after they have been successfully validated. But sadly this does not solve the whole problem - if SaveChanges() fails all documents still remain add but unsaved. I tried to detach all objects returned by this.objectContext.ObjectStateManager.GetObjectStateEntries(EntityState.Added) but I am getting a exception stating that the object is not attached. So how do I get rid of all added but unsaved objects?

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  • Haystack / Whoosh Index Generation Error

    - by Keith Fitzgerald
    I'm trying to setup haystack with whoosh backend. When i try to gen the index [or any index command for that matter] i receive: TypeError: Item in ``from list'' not a string if i completely remove my search_indexes.py i get the same error [so i'm guessing it can't find that file at all] what might cause this error? it's set to autodiscover and i'm sure my app is installed because i'm currently using it. Full traceback: Traceback (most recent call last): File "./manage.py", line 17, in <module> execute_manager(settings) File "/Users/ghostrocket/Development/Redux/.dependencies/django/core/management/__init__.py", line 362, in execute_manager utility.execute() File "/Users/ghostrocket/Development/Redux/.dependencies/django/core/management/__init__.py", line 303, in execute self.fetch_command(subcommand).run_from_argv(self.argv) File "/Users/ghostrocket/Development/Redux/.dependencies/django/core/management/__init__.py", line 257, in fetch_command klass = load_command_class(app_name, subcommand) File "/Users/ghostrocket/Development/Redux/.dependencies/django/core/management/__init__.py", line 67, in load_command_class module = import_module('%s.management.commands.%s' % (app_name, name)) File "/Users/ghostrocket/Development/Redux/.dependencies/django/utils/importlib.py", line 35, in import_module __import__(name) File "/Users/ghostrocket/Development/Redux/.dependencies/haystack/__init__.py", line 124, in <module> handle_registrations() File "/Users/ghostrocket/Development/Redux/.dependencies/haystack/__init__.py", line 121, in handle_registrations search_sites_conf = __import__(settings.HAYSTACK_SITECONF) File "/Users/ghostrocket/Development/Redux/website/../website/search_sites.py", line 2, in <module> haystack.autodiscover() File "/Users/ghostrocket/Development/Redux/.dependencies/haystack/__init__.py", line 83, in autodiscover app_path = __import__(app, {}, {}, [app.split('.')[-1]]).__path__ TypeError: Item in ``from list'' not a string and here is my search_indexes.py from haystack import indexes from haystack import site from myproject.models import * site.register(myobject)

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  • Entity Framework - Merging 2 physical tables into one "virtual" table problems...

    - by Keith Barrows
    I have been reading up on porting ASP.NET Membership Provider into .NET 3.5 using LINQ & Entities. However, the DB model that every single sample shows is the newer model while I've inherited a rather old model. Differences: The User Table is split into a pair of User & Membership Tables. All of the tables in the DB are prepended with aspnet_ I have Lowered versions of some columns (UserName, Email, etc) To work with this I have copied the properties from the Membership table into the User table (in the DB this is a 1<-1 relationship, not a 1<-0,1), renamed aspnet_Applications to Application, aspnet_Profiles to Profile, aspnet_Users to User and aspnet_Roles to Role. (See image) Link to full size image of model Now, I am running into one of 2 problems when I try to compile. Using the model in the image I get this error: Problem in Mapping Fragment starting at line 464: EntitySets 'UserSet' and 'aspnet_Membership' are both mapped to table 'aspnet_Membership'. Their Primary Keys may collide. If I delete the aspnet_Membership table from my model (to handle the above error) I then get: Problem in Mapping Fragment starting at line 384: Column aspnet_Membership.ApplicationId in table aspnet_Membership must be mapped: It has no default value and is not nullable. My ability to hand edit the backing stores is not the best and I don't want to just hack something in that may break other things. I am looking for suggestions, best practices, etc to handle this. Note: Moving the data tables themselves is not an option as I cannot replace all the logic in the existing apps. I am building this EF Provider for a new App. Over the next 6 months the old app(s) will migrate bit-by-bit to the new structures. Note: I added a link just under the image to the full size image for better viewing.

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  • Can the opensocial API remotely search for users in orkut etc.?

    - by Martin
    Does anyone know if (and how) I can build an application (Java/Ruby/whatever) doing REST or RPC calls to a social network like Orkut (using opensocial) to search for a user by name or email address? So far I know that I can list all friends for a particular user ID, but I want to search among all users. Would I need to code it as an app/gadget running inside the google sandbox or is there a way to get a list of matching user ID via REST? So far I got this one to work: http://code.google.com/p/opensocial-ruby-client/wiki/GettingStarted. But with this API and the gadget linked there I only get people that are already linked to me... Thanks for answers, Martin

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  • how does hash element make a secure login on zend framework?

    - by ulduz114
    hello all i saw a example for login form same blow code class Form_Login extends Zend_Form { //put your code here public function init($timeout=360){ $this->addElement('hash', 'token', array( 'timeout' => $timeout )); $this->setName('Login'); $username = $this->createElement ( 'text', 'username' ); $username->setLabel('user name:') ->setRequired(); $this->addElement($username); $password=$this->createElement('password','password'); $password->setLabel('password:'); $password->setRequired(); $this->addElement($password); $login=$this->createElement('submit','login'); $login->setLabel('Login'); $this->addElement($login); $this->setMethod('post'); $this->setAction(Zend_Controller_Front::getInstance()->getBaseUrl().'/authentication/login'); } } and in submitAction a part code same below if (!$form->isValid($request->getPost())) { if (count($form->getErrors('token')) > 0) { return $this->_forward('csrf-forbidden', 'error'); } $this->view->form = $form; return $this->render('login'); } now , my question, whats the reason for use of hash element? how this hash element make secure login? anybody may help explain these? thanks

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  • Serve static media on "nginx"

    - by MMRUSer
    My django application hosted on Apache, and now I want to serve its static media through nginx, I don't have any prior experience in nginx...plus currently the static media is serve through Apache.. expecting some helping hand. Apache 2.2 mod_wsgi nignx-0.7.65 Django 1.1.1 Thanks..

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  • Zend Framework - tinyMCE - plugin folders are mistaken to be controllers? Help

    - by Ali
    Hi guys I'm trying to integrate the tinymce plugin however I'm running into problems such that almost every feature which requires a plugin to be rendered i.e the add url popup or add image pop up - it opens an empty pop up window. Even if I try to open it inline I get the same blank popup window.. I noticed that whenever I click on lets say url button in tinymCE it opens with reference to my localhost and because of that I'm assuming my application is mistaking the containing javascript folder to be some controller or action. How can I fix this please - I've set up mod rewrite to allow clean urls as well as ignore the javascript folder but this is a different issue altogether :( what should I be looking at here.. I can't notice any error sin firebug..

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  • Entity Framework in n-layered application - Lazy loading vs. Eager loading patterns

    - by Marconline
    Hi all. This questions doesn't let me sleep as it's since one year I'm trying to find a solution but... still nothing happened in my mind. Probably you can help me, because I think this is a very common issue. I've a n-layered application: presentation layer, business logic layer, model layer. Suppose for simplicity that my application contains, in the presentation layer, a form that allows a user to search for a customer. Now the user fills the filters through the UI and clicks a button. Something happens and the request arrives to presentation layer to a method like CustomerSearch(CustomerFilter myFilter). This business logic layer now keeps it simple: creates a query on the model and gets back results. Now the question: how do you face the problem of loading data? I mean business logic layer doesn't know that that particular method will be invoked just by that form. So I think that it doesn't know if the requesting form needs just the Customer objects back or the Customer objects with the linked Order entities. I try to explain better: our form just wants to list Customers searching by surname. It has nothing to do with orders. So the business logic query will be something like: (from c in ctx.CustomerSet where c.Name.Contains(strQry) select c).ToList(); now this is working correctly. Two days later your boss asks you to add a form that let you search for customers like the other and you need to show the total count of orders created by each customer. Now I'd like to reuse that query and add the piece of logic that attach (includes) orders and gets back that. How would you front this request? Here is the best (I think) idea I had since now. I'd like to hear from you: my CustomerSearch method in BLL doesn't create the query directly but passes through private extension methods that compose the ObjectQuery like: private ObjectQuery<Customer> SearchCustomers(this ObjectQuery<Customer> qry, CustomerFilter myFilter) and private ObjectQuery<Customer> IncludeOrders(this ObjectQuery<Customer> qry) but this doesn't convince me as it seems too complex. Thanks, Marco

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  • How do I get the entity framework to work with archive flags?

    - by Orion Adrian
    I'm trying to create a set of tables where we don't actually delete them, but rather we set the archive flags instead. When we delete an entity, it shouldn't be deleted, it should be marked as archived instead. What are the programming patterns to support this? I would also prefer not to have to roll out my own stored procs for every table that have these archive flags if there is another solution.

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  • How can I setup a simple custom route using Zend Framework's Zend_Application?

    - by Billy ONeal
    I'm looking to setup a custom route which supplies implicit parameter names to a Zend_Application. Essentially, I have an incoming URL which looks like this: /StandardSystems/Dell/LatitudeE6500 I'd like that to be mapped to the StandardsystemsController, and I'd like that controller to be passed parameters "make" => "Dell" and "model" => "LatitudeE6500". How can I setup such a system using Zend_Application?

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  • Howto specify format of Restlet-response in browser?

    - by martin
    Hello everybody, i've started to introduce myself into REST. I use as REST-framework Restlet. I have defined a resource with methods for the GET with several response formats like @Get("xml") @Get("json") I now want to test my defined response-formats with my browser, but I don't know which parameter I have to specify in my URL to get the format. Something like: http://localhost:8182/members?type=xml I've tried some param-names, but I couldn't find the right param-name. I know that there must be such a parameter, because I've seen it already in an URL, but i forgot the name and couldn't find it in the net. How is the name of this parameter when using restlet? I would be pleased, if somebody can help me, thanks, Martin

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  • How to implement a left outer join in the Entity Framework.

    - by user206736
    I have the following SQL query:- select distinct * from dbo.Profiles profiles left join ProfileSettings pSet on pSet.ProfileKey = profiles.ProfileKey left join PlatformIdentities pId on pId.ProfileKey = profiles.Profilekey I need to convert it to a LinqToEntities expression. I have tried the following:- from profiles in _dbContext.ProfileSet let leftOuter = (from pSet in _dbContext.ProfileSettingSet select new { pSet.isInternal }).FirstOrDefault() select new { profiles.ProfileKey, Internal = leftOuter.isInternal, profiles.FirstName, profiles.LastName, profiles.EmailAddress, profiles.DateCreated, profiles.LastLoggedIn, }; The above query works fine because I haven't considered the third table "PlatformIdentities". Single left outer join works with what I have done above. How do I include PlatformIdentities (the 3rd table) ? I basically want to translate the SQL query I specified at the beginning of this post (which gives me exactly what I need) in to LinqToEntities. Thanks

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  • Django form linking 2 models by many to many field.

    - by Ed
    I have two models: class Actor(models.Model): name = models.CharField(max_length=30, unique = True) event = models.ManyToManyField(Event, blank=True, null=True) class Event(models.Model): name = models.CharField(max_length=30, unique = True) long_description = models.TextField(blank=True, null=True) I want to create a form that allows me to identify the link between the two models when I add a new entry. This works: class ActorForm(forms.ModelForm): class Meta: model = Actor The form includes both name and event, allowing me to create a new Actor and simultaneous link it to an existing Event. On the flipside, class EventForm(forms.ModelForm): class Meta: model = Event This form does not include an actor association. So I am only able to create a new Event. I can't simultaneously link it to an existing Actor. I tried to create an inline formset: EventFormSet = forms.models.inlineformset_factory(Event, Actor, can_delete = False, extra = 2, form = ActorForm) but I get an error <'class ctg.dtb.models.Actor'> has no ForeignKey to <'class ctg.dtb.models.Event'> This isn't too surprising. The inlineformset worked for another set of models I had, but this is a different example. I think I'm going about it entirely wrong. Overall question: How can I create a form that allows me to create a new Event and link it to an existing Actor?

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  • is there a way to generate pdf containing non-ascii symbols with pisa from django template?

    - by mihailt
    Hi. i'm trying to generate a pdf from template using this snippet: def write_pdf(template_src, context_dict): template = get_template(template_src) context = Context(context_dict) html = template.render(context) result = StringIO.StringIO() pdf = pisa.pisaDocument(StringIO.StringIO(html.encode("UTF-8")), result) if not pdf.err: return http.HttpResponse(result.getvalue(), mimetype='application/pdf') except Exception('PDF error') but all non-latin symbols are not showing correctly, the template and view are saved using utf-8 encoding. i've tried saving view as ANSI and then to user unicode(html,"UTF-8"), but it throws TypeError. Also i thought that maybe it's because the default fonts somehow do not support utf-8 so according to pisa documentation i tried to set fontface in template body in style section. that still gave no results. Does any one have some ideas how to solve this issue?

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  • Create a many to many relationship in Entity Framework skipping extra data in the link table.

    - by Paul Smith
    I would like to model the following many to many relationship. Table A ID Field1 Field2 Table B ID Field1 Field2 LinkTable A_ID B_ID Field_I_want_to_ignore As I understand it, if LinkTable.Field_I_want_to_ignore was not present, the Entity Model Designer would automatically create a Many to Many relationship between entity A and entity B. However, because this field exists in the database the designer won't do it for me. I can delete the Field_I_want_to_ignore from the LinkTable Entity that the designer created for me, but how do I eliminate the LinkTable entity altogether and create the many to many relationship I want? I'm not averse to digging through the XML, just at the moment I can't see how to achieve what I want.

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  • How do you set the initial value for a ManyToMany field in django?

    - by mlissner
    I am using a ModelForm to create a form, and I have gotten the initial values set for every field in the form except for the one that is a ManyToMany field. I understand that I need to give it a list, but I can't get it to work. My code right now is roughly: contacts = userProfile.contact.all() initial = {'contacts': contacts} But that doesn't work. Am I missing something here?

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  • Using Yii framework, what would be a right way to process an attribute before displaying it using CH

    - by Karolis
    Say I have this line of code in the view. <?php echo CHtml::activeTextField($model,'start_time'); ?> start_time is a UNIX timestamp. When just displaying it in a view I can apply functions like date() on it. Where should I apply the formatting when I'm displaying it in a form, by using the above line of code? (This case of timestamps/dates might be special, but I'm also interested in how would one go about if it wasn't a date and I just want to work with "value in database" < "different representations of the value in different views. Thanks =)

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  • Django date filter: how come the format used is different from the one in datetime library ???

    - by Sébastien Piquemal
    Hello ! For formatting a date using date filter you must use the following format : {{ my_date|date:"Y-m-d" }} If you use strftime from the standard datetime, you have to use the following : my_date.strftime("%Y-%m-%d") So my question is ... isn't it ugly (I guess it is because of the % that is used also for tags, and therefore is escaped or something) ? But that's not the main question ... I would like to use the same DATE_FORMAT parametrized in settings.py all over the project, but it therefore seems that I cannot ! Is there a work around (for example a filter that removes the % after the date has been formatted like {{ my_date|date|dream_filter }}, because if I just use DATE_FORMAT = "%Y-%m-%d" I got something like %2001-%6-%12)?

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  • Jersey message body reader not found in maven-built JAR

    - by Olvagor
    My application uses a REST (JAX-RS Jersey) interface. When I run it in Eclipse, everything' s fine. The domain objects are annotated, I'm not using XML files for the REST mapping. Now I created a standalone JAR using the maven-assembly-plugin, which packs the application and all dependencies in a single, executable JAR file. This also seems to work. But when I start the application and request an object from the server, Jersey complains, that it can't find a message body reader: com.sun.jersey.api.client.ClientHandlerException: A message body reader for Java type, class de.rybu.atuin.core.entity.User, and MIME media type, application/json, was not found Any ideas why this happens? EDIT: After I slept a night over it, I noticed that it complains about JSON... but I'm using only XML for serialization. Strange.

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  • How can I setup a simple custom route using Zend Framework?

    - by Billy ONeal
    I'm looking to setup a custom route which supplies implicit parameter names to a Zend_Application. Essentially, I have an incoming URL which looks like this: /StandardSystems/Dell/LatitudeE6500 I'd like that to be mapped to the StandardsystemsController, and I'd like that controller to be passed parameters "make" => "Dell" and "model" => "LatitudeE6500". How can I setup such a system using Zend_Application and Zend_Controller_Router?

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