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• Need generated UML diagrams for C++ plugin modules

  - by archer1742

  I need various UML diagrams (sequence/collaboration, class, package, and system component) from some C++ files. However, these files are plugins in a larger programming framework. I have tried generating UML from Rational Rose 7 (2002 version), but I am not very experienced and I am unsure if RR simply cannot produce the diagram, I am doing something wrong, or the diagrams are not rendering correctly because the source files are plugins instead of standalone programs. I have also tried Star Modeler with little success and there seem to be no tutorials on how to generate these models. Is there a simple, bulletproof way to get UML diagrams for C++ files?

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• Where to put code snippets in Rails?

  - by Nik

  Hello all, I have this code snippets that generates a signature for POSTs. The detail of it is not important, but what I want to know is: since it is not a model-related chunk of code, it really can be use anywhere: in controllers, in models, in view helpers; even in views. So I am unsure where and, even bigger of a problem, how to activate the use of it once I place it in some location. Is it what those "require" statements are all about? That you can acquire some functionality through a "require" statement in the current file you are working on? Just so that we have an example to talk about, say, I have a little snippet of code that does cubing: def cube_it(num) num**3 end I know that I will be using it in various places across the application, so where should I put it? and when I do need to use it, how can I "summon" it? Thank You

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• 3D framework/library os x

  - by Deano

  Does anyone have any advice as to a good framework for simplifying the generation of 3D models? I am trying to construct a parametric program for tasks such as ship design. Actions such as surface modelling, intersections etc are a must. I have investigated openCASCADE and it shows promise but getting it to integrate into a native cocoa interface is not currently achievable (By me at any rate). All ideas and suggestions welcome. Should I just forget it and integrate an X11 window, if so any tutorials for doing this?

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• On Google AppEngine what is the best way to merge two tables?

  - by gpjones

  If I have two tables, Company and Sales, and I want to display both sets of data in a single list, how would I do this on Google App Engine using GQL? The models are: class Company(db.Model): companyname = db.StringProperty() companyid = db.StringProperty() salesperson = db.StringProperty() class Sales(db.Model): companyid = db.StringProperty() weeklysales = db.StringProperty() monthlysales = db.StringProperty() The views are: def company(request): companys = db.GqlQuery("SELECT * FROM Company") sales = db.GqlQuery("SELECT * FROM Sales") template_values = { 'companys' : companys, 'sales' : sales } return respond(request, 'list', template_values) List html includes: {%for company in companys%} {% for sale in sales %} {% ifequal company.companyid sales.companyid %} {{sales.weeklysales}} {{sales.monthlysales}} {% endifequal %} {% endfor %} {{company.companyname}} {{company.companyid}} {{company.salesperson}} {%endfor%} Any help would be greatly appreciated.

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• Error Handling in Model (MVC)

  - by Andre

  I was wondering what the excepted standard is for handling errors in the Model. Currently I have 'setError' and 'getError' methods that's in use by all my Models. This means I'm only concerned with whether a call to a method in my Model is true or false. If it's false then I would use $this-model-getError() in my Controller. Additionally I'm contemplating setting up a separate file that contains all my errors. One file per model, also wanted to have thoughts on this.

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• Searching in Rails 3

  - by cbarton

  Here is the situation: I have the need to search for specifics or generals, much like expedia.com or your local library catalog search. In that there are fields that may or may not be filled out based on the individual need. It acts much like an "advanced search page". I have all of that code done for the models/controller and such and have it setup with a Searches controller along with matching model and views. The question that I have is there a way to cut down the amount of parameters posted to GET so that the url isn't search?search[:a]=""+search[:b]=""+search[:c]="x"... plus the unicode checkmark. I only want the filled out fields to be shown in the response link especially minus the checkmark. cbarton

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• Understanding NoSQL Data Modeling - blog application

  - by Rushabh RajeshKumar Padalia

  I am creating an blogging application in Node.js + MongoDB Database. I have used relational Database like MySQL before but this is my first experience with NoSQL database. So I would like to conform my MongoDB data models before I move further. I have decided my blogDB to have 3 collections post_collection - stores information about that article comment_collection - store information about comments on articles user_info_collection - contains user inforamtion PostDB { _"id" : ObjectID(...), "author": "author_name", "Date": new Date(....), "tag" : ["politics" , "war"], "post_title": "My first Article", "post_content": "Big big article" "likes": 23 "access": "public" } CommentDB { "_id" : Objectid(...), "POST": "My First Article", "comment_by": "User_name", "comment": "MY comments" } UserInfoDB { "_id": ObjectID(...), "user": "User_name", "password": "My_password" } I would appreciate your comments.

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• ferret,multiple model search -undefined method `aaf_index' for #<Class:>

  - by jissy

  ferret,multiple model search - I have 2 models A and B.I want to perform a text search by using 3 fields; title, description(part of A) and comment(part of B). Where I want to include the comment field to perform the ferret search.Then,what other changes needed. class A < ActiveRecord::Base has_one :b acts_as_ferret :fields => [:title, :description], :additional_fields => [:comment_text] def comment_text return b.comment end In a_controller, i wrote: @search = A.find_with_ferret( params[:st][:text_search], :limit => :all, :multi => [B] ).paginate :per_page =>10, :page=>params[:page] The second mosel is given below: class B < ActiveRecord::Base belongs_to :a while using :multi[B] option with the find_with_ferret,the following error is getting: undefined method `aaf_index' for #ClassName

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• Query to work out possible destinations on a set of routes using SQL Server 2008

  - by RobW

  I'm writing an application that models train routes, which are stored in the database table [TrainStop] as follows: RouteId StationCode StopIndex IsEnabled So a given route consists of several rows with the StopIndex indicating the order. The problem I am trying to solve is to say which stations a user can get to from a given starting station. This would be relatively straightforward BUT it is also possible to disable stops which means that a user cannot get to any destinations after that stop. It is also possible that multiple routes can share stations e.g.: Route 1: A, B, C, D, E Route2: P, Q, B, C, D, R So if a user is at B they can go to C, D, E and R but if station D is disabled they can get to C only. Solving this problem is fairly straightforward within C# but I am wondering whether it can be solved elegantly and efficiently within SQL? I'm struggling to find a way, for each route, to rule out stations past a row that is not enabled.

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• solutions for rapid front-end development?

  - by fayer

  im using mvc framework and i have learned some techniques that help me with different parts of RAD. models: doctrine/visual paradigm controllers/libraries: various design patterns now i only need to know what technique/solution i should use for the views so that i can create views more rapidly. cause i don't think it's efficient to code css/html manually, even though i understand it. its the same principle when using visual paradigm to create both my mysql database tables and doctrine model classes. i believe in using right tools will boost up development speed. so what could i use for the views to save time and energy and don't reinvent the wheel all the time? dreamweaver? any css generation tools? 960/blueprint for layout? suggestions? thanks

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• Process AJAX response with long runing tasks

  - by mpz

  I have long time task in controller action. I use delayed job for it. (Also in heroku it is good practice for perfomance - dyno must work for small time in each request) But my client need result of it work and users can wait on that task. It is more clear: no any addition models or records in it, simple view and js... I think about such way: On client run AJAX with very long timeout (5 min for example) Client make request to server as usual On controller in action1 def start_work (with delay work setup) i need NO any response to client After work performs (delay job finished) i need run new action2 with response to client Client recieve response after about 1-5 min It is possible?

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• How to get notified of changes on a read only table? (I.e., Price drop notifications.)

  - by mirthlab

  Let's say I have these tables/models: Product - id - last_updated_date - name - price User - id - name Wishlist - id - user_id - product_id The Product table has a few million records and is being updated automatically each night via a data import (inserting into a new table, dropping the old one). I basically have read-only access to that table/model. If a product is on a user's wishlist and the price drops, I'd like to be able to notify that user. What methods can be used to do this? I have a couple of ideas: Keep track of the Product.last_updated_date in the wishlist model and periodically poll the product table to see if it has been updated. This sounds like a horrible/non-scaleable solution. Some sort of Postgres View or Function that triggers when the Product table is updated? I'm new to postgres so I'm not yet sure if this is even possible. Something amazing that you will suggest that I haven't thought of :) Any help in the right direction is greatly appreciated!

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• Admin panel - what is the best way to display "static" data in the layout?

  - by rkj

  I'm about to write a admin panel for my CMS written in CodeIgniter. There will be some user information visible at all time - both in the layout's header section and the sidebar. I'm used to do it in a way that I personally hope and think could be done a lot easier, since I'm tired of sending the same parametres to the view over and over again, when it's dynamic data that needs to be displayed on every page anyways (such as unread messages, username, name, status, etc). I'll need controllers and models, I know that, but do I have to pass, just for an example, the user's username, unread messages etc. every time I need to load a view? Should I do some kind of library for this? Now my question is: How would I do it when it comes to best practice and for making it easy to maintain in the future? I hope my question is understandable :)

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• Rails: Creating subfolders in model?

  - by keruilin

  I'm going to have a ton of subclasses, so want to organize them under a subfolder called stream. I added the following line to the environment.rb so that all classes in the subfolder would be loaded: Rails::Initializer.run do |config| ... config.load_paths += Dir["#{RAILS_ROOT}/app/models/*"].find_all { |f| File.stat(f).directory? } ... end I thought this would solve the issue in which by convention the model class is namespaced into an according module. However, when I try to call one of the classes called stream in the stream folder, I get the following error: NoMethodError: undefined method `new' for Stream:Module from (irb):28 from /usr/local/bin/irb:12:in `<main>' Here's the model for the parent and one child: class Stream end class EventStream < Stream end Any idea what the issue is?

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• Supporting rotation sensors in Symbian across multiple devices in one executable

  - by magicbadger

  I'm puzzling my head as to how some application appear to support the couple of Rotational Sensor APIs for Symbian, specifically the Sensor API and the Sensor Framework (both the 5th ed. and the 3rd ed. FP2 backport). For example, I believe that Gravity will support rotation in N95 and also newer models from the same binary (could be wrong there...). If I use the Sensor Framework then my app will not install on an N95 (it gives me a System Error -1), whereas if I use the Sensor API (RRSensor) then it will only install on an N95 and no other phones. This is most likely due to the available libraries on those devices. I am trying to find some way of abstracting things such that I can use exactly the same binary for all devices. The only alternative I can see is trying to use ECOM plugins and then installing the relevant library using conditionals in my PKG file. Does anyone know of a better/easier way?

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• samsung galaxy tab 4 not recognized by eclipse

  - by michael

  the just released samsung galaxy tab 4 tablet does bring up the 'autoplay' box with device options when connected, but is not being recognized by eclipse, nothing shows in the device window. I have enabled debugging on the galaxy tab, including tapping the 'about' box 7 times to make the developer options magically appear. it runs kitkat and the Samsung site has a 'no data available' under the driver tab for this device. since it just came out at target last week it's unlikely there would be a new driver anyway, which has been the usual suggestion for this question on older models.

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• OpenERP model tracking external resource, hooking into parent's copy() or copy_data()

  - by CB.

  I have added a new model (call it crm_lead_external) that is linked via a new one2many on crm_lead. Thus, my module has two models defined: an updated crm_lead (with _name=crm_lead) and a new crm_lead_external. This external model tracks a file and as such has a 'filename' field. I also created a unique SQL index on this filename field. This is part of my module: def copy(self, cr, uid, id, default=None, context=None): if not default: default = {} default.update({ 'state': 'new', 'filename': '', }) ret = super(crm_lead_external, self).copy(cr, uid, id, default, context=context) #do file copy return ret The intent here is to allow an external entity to be duplicated, but to retarget the file path. Now, if I click duplicate on the Lead, I get an IntegrityError on my unique constraint. Is there a particular reason why copy() isn't being called? Should I add this logic to copy_data()? Myst I really override copy() for the lead? Thanks in advance.

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• Parent and child model interaction

  - by jminarik

  Hi, is it possible set something like wpf window owner in caliburn.micro ? I have PARENT VIEW MODEL, from this model I open CHILD SCREEN {VIEW MODEL} with this method: public IEnumerable<IResult> Open() { yield return new ShowWindow("ChatScreen") .InitializeWith(_service .DetailData(Account, _selectedFriend.Value.Nick), AvatarImage); } This method create a new WPF WINDOW - CHILD SCREEN and initialize CHILD VIEW MODEL with some variables. I would like set something like this CHILD_SCREEN.PARENT = PARENT_VIEW_MODEL. I would like achieve if I close PARENT VIEW MODEL that it close also all CHILD MODELS. Also it exist way how can I check if screen, in my situation WPF window, is active/inactive from MAIN VIEW MODEL?

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• Two DomainContext or data sources with WCF RIA - Silverlight page

  - by Mayur Kotlikar

  I am writting a Silverlight Business Application with WCF RIA link. I have 2 databases on same SQL server, Public and Private. The Public database contains a table which is mostly for public access level, like "user" table which has basic user information The Private database contains a table which has "private" information, user bank transactions etc I created 2 ADO.Net entity models, one each for Private and Public database and selected the tables. I also created 2 different domain context services On on Silverlight page, I need to get information from the tables that are across 2 databases, Private and Public as described above. How do I achieve this? I am thinking of some kind of a wrapper that internally gets data from domain services. Whats the best approach?

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• Good real-world uses of metaclasses (e.g. in Python)

  - by Carles Barrobés

  I'm learning about metaclasses in Python. I think it is a very powerful technique, and I'm looking for good uses for them. I'd like some feedback of good useful real-world examples of using metaclasses. I'm not looking for example code on how to write a metaclass (there are plenty examples of useless metaclasses out there), but real examples where you have applied the technique and it was really the appropriate solution. The rule is: no theoretical possibilities, but metaclasses at work in a real application. I'll start with the one example I know: Django models, for declarative programming, where the base class Model uses a metaclass to fill the model objects of useful ORM functionality from the attribute definitions. Looking forward to your contributions.

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• Can one extract model fit parameters after a ggplot stat_smooth call?

  - by Alex Holcombe

  Using stat_smooth, I can fit models to data. E.g. g=ggplot(tips,aes(x=tip,y=as.numeric(unclass(factor(tips$sex))-1))) +facet_grid(time~.) g=g+ stat_summary(fun.y=mean,geom="point") g=g+ stat_smooth(method="glm", family="binomial") I would like to know the coefficients of the glm binomial fits. I could re-do the fit with dlply and get the coefficients with ldply, but I'd like to avoid such duplication. Calling str(g) reveals the hierarchy of objects that ggplot creates, perhaps there's some way to get to the coefficients through that?

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• Strange DataMapper (0.10.2) error. Please help!

  - by Joel M.

  See the full error here: http://notesapp.heroku.com/ I'm using DataMapper and dm-validations 0.10.2. No matter how much I tweak my models, I get the same error, or another one. Here's how my model looks like: class User include DataMapper::Resource attr_accessor :password, :password_confirmation property :id, Serial, :required => true property :email, String, :required => true, :format => :email_address, :unique => true property :hashed_password, String property :salt, String, :required => true property :created_at, DateTime, :default => Time.now property :permission_level, Integer, :default => 1 validates_present :password_confirmation, :unless => Proc.new { |t| t.hashed_password } validates_present :password, :unless => Proc.new { |t| t.hashed_password } validates_is_confirmed :password

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• How Many HABTM relationships in cakephp is too many?

  - by user559540

  Hi all, I'm struggling with deciding how many HABTM relationships I really need in my cakephp app. I guess I don't quite get what "has" truly means. I don't want to have more HABTM tables than necessary. Here's what I have in my database: Users Properties Leases Payments Repairs user HABTM properties, user HABTM leases, user HABTM users, user HABTM repairs, property hasMany repairs, property hasMany leases, lease hasMany repairs. Also, I have two aliases for my users model (manager and tenant). This is one of the reasons I ended up with so many HABTM relationships, but I'm not sure it's necessary. Do I have too many user HABTM relationships? Would it be better to just have cake recurse through my models? Thanks!

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• JQuery pass model to controller

  - by slandau

  I want to pass the mvc page model back to my controller within a Javascript Object. How would I do that? var urlString = "<%= System.Web.VirtualPathUtility.ToAbsolute("~/mvc/Indications.cfc/ExportToExcel")%>"; var jsonNickname = { model: Model, viewName: "<%= VirtualPathUtility.ToAbsolute("~/Views/Indications/TermSheetViews/Swap/CashFlows.aspx")%>", fileName: 'Cashflows.xls' } $.ajax({ type: "POST", url: urlString, data: jsonNickname, async: false, success: function (data) { $('#termSheetPrinted').append(data); } }); So where it says model: Model, I want the Model to be the actual page model that I declare at the top of the page: Inherits="System.Web.Mvc.ViewPage<Chatham.Web.Models.Indications.SwapModel>" How can I do that?

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• Widget_Controller for different types of data (MVC)

  - by steve-o

  Hello, I have a few widgets I need to show on a site - they are all relating to different types of data (e.g user, house). Each type of data and its relations is represented in specific models, but as far as a controller or helper is concerned, is it an ok plan to have a generic Widget controller/helper which generates the necessary widgets, even though each widget is dealing with distinct data? I don't really want to generate these widgets within the User and House controllers, as these controllers are dealing with different types of functionality. I'd imagine that the Widget_Controller could just contain static methods for generating these widgets, e.g: Widget_Controller::user_panel(); Does that make sense? Cheers!

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