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  • Dynamically create class attributes

    - by ahojnnes
    Hi, I need to dynamically create class attributes from a DEFAULTS dictionary. defaults = { 'default_value1':True, 'default_value2':True, 'default_value3':True, } class Settings(object): default_value1 = some_complex_init_function(defaults[default_value1], ...) default_value2 = some_complex_init_function(defaults[default_value2], ...) default_value3 = some_complex_init_function(defaults[default_value3], ...) I could also achive this by having sth. like __init__ for class creation, in order to dynamically create these attributes from dictionary and save a lot of code and stupid work. How would you do this? Thank you very much in advance!

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  • How can I force this z-index?

    - by Kyle Sevenoaks
    On euroworker.no/order (add something to the cart with Kjøp and Handlevogn). I have a tooltip that shows the picture of the product when you hover the product name, for some reason it shows above the name, but under other elements, like lines and other product names. JSFiddle of the tooltip code here. And also how can I get the tooltip to appear in the middle? I tried right:50%; but guess that's not right. Thanks.

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  • Creating a db driven primary navigation in django?

    - by Fedor
    I find that it's pretty common most people hardcode the navigation into their templates, but I'm dealing with a pretty dynamic news site which might be better off if the primary nav was db driven. So I was thinking of having a Navigation model where each row would be a link. link_id INT primary key link_name varchar(255) url varchar(255) order INT active boolean If anyone's done something similar in the past, would you say this sort of schema is good enough? I also wanted for there to be an optional dropdown in the admin near the url field so that a user could choose a Category model's slug since category links would be common, but I'm not quite sure how that would be possible.

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  • How to handle server-client requests

    - by Layne
    Currently I'm working on a Server-Client system which will be the backbone of my application. I have to find the best way to send requests and handle them on the server-side. The server-side should be able to handle requests like this one: getPortfolio -i 2 -d all In an old project I decided to send such a request as string and the server application had to look up the first part of the string ("getPortfolio"). Afterwards the server application had to find the correct method in a map which linked the methods with the the first part of the string ("getPortfolio"). The second part ("-i 2 -d all") got passed as parameter and the method itself had to handle this string/parameter. I doubt that this is the best solution in order to handle many different requests. Rgds Layne

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  • Check if a type is an instantiation of a template

    - by Pedro Lacerda
    I have structs like struct RGBA (T) {/* ... */} struct BMPFile (DataT) if (is(DataT == RGBA)) {/* ... */} But is(DataT == RGBA) cannot work because DataT is a type and RGBA is a template. Instead I need check if a type is an instantiation of a template in order to declare file like BMPFile!(RGBA!ushort) file; In a comment @FeepingCreature showed struct RGBA(T) { alias void isRGBAStruct; } struct BMPFile (DataT) if (is(DataT.isRGBAStruct)) {} Although to be working I have no tips on alias void isRGBAStruct.

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  • handling broadcast reciver

    - by rayman
    Hi, I have an app which has MainActivity(without gui.. please just flow with it:) ) now this MainActivity running a service, this service using sendBroadcast() in order to comunnicate with the MainActivity.. now ofcourse i need to registerReceiver in the onResume() of the MainActivity. but i also need to add unregisterReceiver(receiver) in the onDestroy() of the MainActivity. problem is: when i first start that app i need it to up the service, and i dont want the user to lose focus, so i press finish() after i`am starting the service.. but then auto invoked also unregisterReceiver(receiver).. and this is not good for me.. i get error it's said it couldnt find any registerd reciver. so i fixed it by delete this line.. but i am sure its going to 'revenege' me in the future, when/where could i have problem if i wont use unregisterReceiver(receiver).. at the onDestroy() thanks, ray.

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  • Oracle SQL: Query results from previous X isoweeks () (where X might be > 52)

    - by tommy-o-dell
    How could I adapt this query to show the previous 61 weeks? (still exlcluding the current week). My query currently shows me the total weekly sales for 2010 grouped by ISO Week and ISO Year (exlcuding the current week). select to_char(order_date,'IYYY') as iso_year, to_char(order_date,'IW') as iso_week, sum(sale_amount) from orders where to_char(order_date,'IW') <> to_char(SYSDATE) and to_char(order_date,'IYYY') = 2010 group by to_char(order_date,'IYYY') to_char(order_date,'IW') I realize I could probably just omit the "2010" requirement, order by desc and limit results to a certain bnumber of rows. But that just doesn't seem right! Much appreciate any help pointing me in the right direction!

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  • GAE datastore - count records between one minute ago and two minutes ago?

    - by Arthur Wulf White
    I am using GAE datastore with python and I want to count and display the number of records between two recent dates. for examples, how many records exist with a time signature between two minutes ago and three minutes ago in the datastore. Thank you. #!/usr/bin/env python import wsgiref.handlers from google.appengine.ext import db from google.appengine.ext import webapp from google.appengine.ext.webapp import template from datetime import datetime class Voice(db.Model): when = db.DateTimeProperty(auto_now_add=True) class MyHandler(webapp.RequestHandler): def get(self): voices = db.GqlQuery( 'SELECT * FROM Voice ' 'ORDER BY when DESC') values = { 'voices': voices } self.response.out.write(template.render('main.html', values)) def post(self): voice = Voice() voice.put() self.redirect('/') self.response.out.write('posted!') def main(): app = webapp.WSGIApplication([ (r'.*', MyHandler)], debug=True) wsgiref.handlers.CGIHandler().run(app) if __name__ == "__main__": main()

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  • How do I calculate a good hash code for a list of strings?

    - by Ian Ringrose
    Background: I have a short list of strings. The number of strings is not always the same, but are nearly always of the order of a “handful” In our database will store these strings in a 2nd normalised table These strings are never changed once they are written to the database. We wish to be able to match on these strings quickly in a query without the performance hit of doing lots of joins. So I am thinking of storing a hash code of all these strings in the main table and including it in our index, so the joins are only processed by the database when the hash code matches. So how do I get a good hashcode? I could: Xor the hash codes of all the string together Xor with multiply the result after each string (say by 31) Cat all the string together then get the hashcode Some other way So what do people think? (If you care we are using .NET and SqlServer)

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  • Is a switch statment ok for 30 or so conditions?

    - by DeanMc
    I am in the final stages of creating an MP4 tag parser in .Net. For those who have experience with tagging music you would be aware that there are an average of 30 or so tags. If tested out different types of loops and it seems that a switch statement with Const values seems to be the way to go with regard to catching the tags in binary. The switch allows me to search the binary without the need to know which order the tags are stored or if there are some not present but I wonder if anyone would be against using a switch statement for so many conditionals. Any insight is much appreciated.

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  • How to pass Remote Interface (aidl) throughout Activities ?

    - by Spredzy
    Hi All, I am developing an application using services and Remote interface. I have a question about passing the reference of my Remote interface throughout Activities. In my first Activity, I bind my service with my activity, in order to get a reference to my interface I use private ServiceConnection mConnection = new ServiceConnection() { @Override public void onServiceConnected(ComponentName arg0, IBinder service) { x = X.Stub.asInterface(service); } @Override public void onServiceDisconnected(ComponentName arg0) { // TODO Auto-generated method stub } }; x being the reference to my interface. Now I would like to access this interface from another activity, I see two ways to do it but I don't know which one is the "proper" way to do it : passing x with my intent when I call the new Activity redo this.bindService(new Intent(y.this,z.class), mConnection, Context.BIND_AUTO_CREATE); in the onCreate() of my new Activity What would you advice me to do ?

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  • php multidimensional array problem

    - by ntan
    Hi to all, i am trying to setup a multidimensional array but my problem is that i can not get the right order from incoming data. Explain $x[1][11]=11; $x[1]=1; var_dump($x); In the above code i get only x[1]. To right would be $x[1]=1; $x[1][11]=11; var_dump($x); But in my case i can dot ensure that x[1] will come first, and x[1][11] will come after. Is there any way that i can use the first example and get right the array. Keep in mind that the array depth is large. Thats

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  • Creating custom model using other models in ASP.NET MVC

    - by Soham Dasgupta
    As the title suggests I have two models Products And Orders which are actually two table in my database and I have used a LINQ to SQL class to create there models. Now I wan to create a model named "OrderDetails" which will have properties from both the model like product name and id from product and Order number from orders something like this. An then I want to create a view from this custom model and from which I want to add "CRUD" operation. What should be my approach. And in many scenarios I may have to use data from more than 4 models. Please help. I'm wondering helplessly and I have only two days experience in ASP.NET MVC.

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  • Best Java library(ies) for forgiving command interpreter

    - by vkraemer
    I am looking for a library or set of libraries that will help me write a forgiving command interpreter. A forgiving command interpreter would be a command interpreter which can deal with simple and even not so simple spelling and word order mistakes in the input. My goal is to have an interpreter which would take the input (a command) from a user and then: execute the command, if it is correct. apply corrections to the command, until a correct command is generated and then present that command to the user to confirm whether it is 'what the user meant'.

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  • Collaborative kernel development

    - by Raffo
    Hi, I have to develop a patch for the linux kernel (2.6) for an university course I'm attending. I have to develop this patch with a friend of mine and we need to edit the same files on our computers (2-3 PCs). So, we want to use something like a collaborative editor and/or a version control system. The problem is that we never used something like that and that we cannot release our software as open source till we take the exam. Obviously, we're using linux. I'm here to ask you suggestions in order to manage our work in the best way. Thank you

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  • How to tell a UITableView to preload all Rows?

    - by Infinite
    Is there a way to tell a UITableView to preload all rows? The tableView is supposed to show several comments (up to 80 comments). So my CommentCell uses a Setter to adapt the cell to a specific comment. -(void)setComment:(Comment *)newComment { if (newComment != comment) { [comment release]; comment = [newComment retain]; /* * set the cells view variables here */ } } This specific setter takes quite a bunch of processing resources and scrolling gets kinda laggy. I am using a comment-specific reuseIdentifier instead of a static cellIdentifier when calling dequeueReusableCellWithIdentifier: in order to assure, that "newComment" equals the old "comment". And in fact this does work great when scrolling over cells which have already been loaded. But when scrolling through the comments for the first time, it still lags like hell. Which leads me to my question: Is there a way to tell the tableview to preload all cells? (which I doubt) or Do I have to implement my own cache instead of relying on "dequeueReusableCellWithIdentifier:"?

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  • Sending an SMS myself

    - by user246114
    Hi, I'm taking shots in the dark here. I'd like to create a web service where eventually I send an SMS by using my own hardware. I'm not sure what I need in order to send an SMS myself. I don't want to use any of the existing SMS send services out there, I need to be able to send these SMS myself. It looks like there's one opensource project in particular that deals with this, "Kannel": http://www.kannel.org/ what I don't understand is, do I need to get a GSM modem to be able to send SMS? Do SMS gateways (like Kannel) eventually need to get to a GSM modem to send messages, or is there some other hardware you need to be able to actually send the messages? Thanks

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  • How to generate multiple Alter Scripts in SSMS

    - by dannyRods
    I'm using sql server management studio 2008 to try and generate an alter script for each of my stored procedures in order to save the scripts for each revision. I can easily generate an alter script for each individual procedure, but I'm not trying to go through a hundred stored procedures manually. I know that SSMS has an automated generate scripts function under task, but the only options are create, drop and create, and drop. I cant seem to figure out how to enable alter. I've already searched through many SO articles, as well as a little digging in msdn, and I've come up with nothing. I'm hoping that the fine people of stackoverflow will be up to the challenge. Thanks in advance

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  • Placeholder containing dynamic table is empty unless I create table twice

    - by Mike O.
    I am dynamically creating a table that contains a textbox in each cell. The table is put in a placeholder control. Everything displays perfectly. The problem is when I go to retrieve the values entered in the cells. I have the code to generate the table in a separate method called CreateTable(). In order for my program to find a table in the placeholder when I go to save, I have to run CreateTable() in a postback event AND in the PageLoad event. If I call CreateTable() in only one of those places and I try to save, it says the placeholder is empty and, therefore, I cannot save the textbox contents. I've tried calling CreateTable() from InitLoad but that doesn't work because it needs to reference values from three static controls: 1 dropdown, 1 listbox, and 1 calendar control, which I don't believe have had their viewstate rendered yet. Anyone have any ideas? It would sure be nice not to have to double the number of database calls just to make this work.

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  • Count the number of ways in which a number 'A' can be broken into a sum of 'B' numbers such that all numbers are co-prime to 'C'

    - by rajneesh2k10
    I came across the solution of a problem which involve dynamic-programming approach, solved using a three dimensional matrix. Link to actual problem is: http://community.topcoder.com/stat?c=problem_statement&pm=12189&rd=15177 Solution to this problem is here under MuddyRoad2: http://apps.topcoder.com/wiki/display/tc/SRM+555 In the last paragraph of explanation, author describes a dynamic programming approach to count the number of ways in which a number 'A' can be broken into a sum of 'B' numbers (not necessarily different), such that every number is co-prime to 3 and the order in which these numbers appear does matter. I am not able to grasp that approach. Can anyone help me understand how DP is acting here. I can't understand what is a state here and how it is derived from the previous state.

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  • SQL Server - Select one random record not showing duplicates

    - by Lukes123
    I have two tables, events and photos, which relate together via the 'Event_ID' column. I wish to select ONE random photo from each event and display them. How can I do this? I have the following which displays all the photos which are associated. How can I limit it to one per event? SELECT Photos.Photo_Id, Photos.Photo_Path, Photos.Event_Id, Events.Event_Title, Events.Event_StartDate, Events.Event_EndDate FROM Photos, Events WHERE Photos.Event_Id = Events.Event_Id AND Events.Event_EndDate < GETDATE() AND Events.Event_EndDate IS NOT NULL AND Events.Event_StartDate IS NOT NULL ORDER BY NEWID() Thanks Luke Stratton

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  • Creating LINQ to SQL for counting a parameter

    - by Matt
    I'm trying to translate a sql query into LINQ to SQL. I keep getting an error "sequence operators not supported for type 'system.string'" If I take out the distinct count part, it works. Is it not because I'm using the GROUP BY? SELECT COUNT(EpaValue) AS [Leak Count], Location, EpaValue AS [Leak Desc.] FROM ChartMes.dbo.RecourceActualEPA_Report WHERE (EpaName = N'LEAK1') AND (Timestamp) '20100429030000' GROUP BY EpaValue, Location ORDER BY Location, [Leak Count] DESC Dim temp = (From p In db2.RecourceActualEPA_Reports _ Where (p.Timestamp = str1stShiftStart) And (p.Timestamp < str2ndShiftCutoff) _ And (p.EpaName = "Leak1") _ Select p.EpaName.Distinct.Count(), p.Location, p.EpaValue)

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  • One account, multiple users, multiple shopping cart in a web application

    - by lemotdit
    I received a somewhat unusual request (imo) for a transactional web site. I have to implement the possibility of having multiple shopping cart for the same user. Those really are shopping carts, not order templates. I.E: A store with several departments ordering under the same account, but with a different person placing orders for a specific department only. Having more than one user per account is not an option since it would involve 'too much' management from the stores owner and the admins. Anyone had to deal with this before? The option so far is to have names for shopping cart, and a dropdown list or something alike after login to choose the cart with some kind of 'busy flag' to lock the cart if it's in use in another session.

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  • Joomla , forms with upload and custom field from inside the administration panel

    - by Stathis
    I want a plugin for joomla like jforms or chronoforms in order to make a form to upload videos along with other custom fields to db and manage them. The only problem is I want this functionality to be made from inside the administrator console and not to appear on a page at my site's frontend. My site does not have a login service , so I need to make the admin able to login to administration panel and from there to upload and manage videos. Do you know of a plugin wich supports this functionality? Thank you in advance.

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  • Storing apostrophes, exclamation marks, etc. in mysql database

    - by rein
    I changed from latin1 to utf8. Although all sorts of text was displaying fine I noticed non-english characters were stored in the database as weird symbols. I spent a day trying to fix that and finally now non-english characters display as non-english characters in the database and display the same on the browser. However I noticed that I see apostrophes stored as &#39; and exclamation marks stored as &#33;. Is this normal, or should they be appearing as ' and ! in the database instead? If so, what would I need to do in order to fix that?

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