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• Notification Email Best Practices--From Server Setup to Programming

  - by Andrew Wagner

  All, I'm in the process now of building a SaaS tool that allows network admins to generate notification emails to the members of the end-users of our platform (among many many other things). I'm running into a bit of an "out of my expertise" wall, as I know there are a lot of variables involved with configuring an application that can: Run in a distributed way via load balancing and still-- Leverage a single mail server for sending notification emails Process unsubscribe requests Avoid any ISP blacklisting in the process. If anyone has the time and has done this before, I'd love if you could walk me through the A-Z of best practices both from a configuration perspective and an execution perspective for generating these emails (anything from necessary DNS settings to ideal SMTP setup and configuration) Currently, our application generates email via Google Apps using the PHPMailer class. While this works well, it doesn't queue messages (potential for timeout problems if any of our clients amass a very large list of end-users), and Google limits the amount of allowed generated email messages to 500/day. I know this is a lofty question, but any guidance you could provide would be smashing and a big help as we work through this hurtle in our beta development stage. Thanks!

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• Why to build own CMS?

  - by ile

  On my first job interview, I was asked why did I build my own CMS? Why not to use one of existing CMS, Wordpress, Joomla, Drupal...? At first, I was stunned. I couldn't immediately recall all of my reasons for building my own CMS, but this was definitely one of the main reasons: It's my code and if I want to change something in that CMS (which I often have to do, because each website I build needs CMS with different functions) it's not a big problem. For some time I've been using Wordpress and one of the main things that distracted me from using it was discovering bugs in code that wasn't written by me and this bugs were often, especially if I made some changes to CMS or added a plugin... Here, I can find these 8 reasons why NOT to build own CMS: It won’t meet users’ needs It’s too much work It won’t be a standard solution It won’t be extendible fast enough It won’t be tested well enough It won’t be easily changeable It won’t add any value Create content, not functionality Quote from the same page: So the main question to ask yourself is: ‘Why am I really trying to re-solve a problem that has already been solved before?’ Well, I definitely agree that it's hard to invent CMS that hasn't been already invented, but on other hand, I think every CMS is (or should be) individual... it maybe won't have a million of functions, it will have 3 functions but their usage will be clear (to a user) and do all that one site needs to have. I think also that it is not good to give to a client a CMS with a lot of functions that are never used and it looks probably more professional when website and CMS together look like one product. I would also like to comment some quote parts: "It’s too much work" - I agree, but when using existing CMS and customizing it to website needs and can sometimes be very hard job or mission impossible. "It won’t be easily changeable" - I disagree with this one. What is your opinion on this one, why did you develop or didn't develop your own CMS? Ile

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• Making flexible C# code in MVC2 for Stored Procedures

  - by cc0

  Thanks to Darin Dimitrov's suggestion I got a big step further in understanding good MVC code, but I'm having some problems making it flexible. I implemented Darin's suggested solution, and it works perfectly for single controllers. However I'm having some trouble implementing it with some flexibility. What I'm looking for is this; To be able to make dynamic column names in json Instead of using "Column1: 'value', ..." and "Column2: 'value', ..." inside the json, I'd like to use for example "id: 'value', ..." and "place: 'value' ..." for one stored procedure, and "animal" and "type" in another (inside the json format). To be able to make dynamic amounts of columns dependent on which stored procedure is called Some stored procedures I'll want to read more than 2 rows from, is there a smart way of accomplishing that? To be able to make numeric (floats and integers) rows from the database be presented inside the json without quotes Like this (name and age); { Column1: "John", Column2: 53 }, I would be very grateful for any feedback and suggestions / code examples I can get here. Even imperfect ones.

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• Is parsing JSON faster than parsing XML

  - by geme_hendrix

  I'm creating a sophisticated JavaScript library for working with my company's server side framework. The server side framework encodes its data to a simple XML format. There's no fancy namespacing or anything like that. Ideally I'd like to parse all of the data in the browser as JSON. However, if I do this I need to rewrite some of the server side code to also spit out JSON. This is a pain because we have public APIs that I can't easily change. What I'm really concerned about here is performance in the browser of parsing JSON versus XML. Is there really a big difference to be concerned about? Or should I exclusively go for JSON? Does anyone have any experience or benchmarks in the performance difference between the two? I realize that most modern web developers would probably opt for JSON and I can see why. However, I really am just interested in performance. If there's a proven massive difference then I'm prepared to spend the extra effort in generating JSON server side for the client.

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• Using ViewModel in ASP.NET MVC with FluentValidation

  - by Brian McCord

  I am using ASP.NET MVC with Entity Framework POCO classes and the FluentValidation framework. It is working well, and the validation is happening as it should (as if I were using DataAnnotations). I have even gotten client-side validation working. And I'm pretty pleased with it. Since this is a test application I am writing just to see if I can get new technologies working together (and learn them along the way), I am now ready to experiment with using ViewModels instead of just passing the actual Model to the view. I'm planning on using something like AutoMapper in my service to do the mapping back and forth from Model to ViewModel but I have a question first. How is this going to affect my validation? Should my validation classes (written using FluentValidation) be written against the ViewModel instead of the Model? Or does it need to happen in both places? One of the big deals about DataAnnotations (and FluentValidation) was that you could have validation in one place that would work "everywhere". And it fulfills that promise (mostly), but if I start using ViewModels, don't I lose that ability and have to go back to putting validation in two places? Or am I just thinking about it wrong?

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• OCR with Neural network: data extraction

  - by Sebastian Hoitz

  I'm using the AForge library framework and its neural network. At the moment when I train my network I create lots of images (one image per letter per font) at a big size (30 pt), cut out the actual letter, scale this down to a smaller size (10x10 px) and then save it to my harddisk. I can then go and read all those images, creating my double[] arrays with data. At the moment I do this on a pixel basis. So once I have successfully trained my network I test the network and let it run on a sample image with the alphabet at different sizes (uppercase and lowercase). But the result is not really promising. I trained the network so that RunEpoch had an error of about 1.5 (so almost no error), but there are still some letters left that do not get identified correctly in my test image. Now my question is: Is this caused because I have a faulty learning method (pixelbased vs. the suggested use of receptors in this article: http://www.codeproject.com/KB/cs/neural_network_ocr.aspx - are there other methods I can use to extract the data for the network?) or can this happen because my segmentation-algorithm to extract the letters from the image to look at is bad? Does anyone have ideas on how to improve it?

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• Could not find schema information for the element 'castle'.

  - by Richard77

  Hello! I'm creating a Custom tag in my web.config. I first wrote the following entry under the configSections section. <section name="castle" type="Castle.Windsor.Configuration.AppDomain.CastleSectionHandler, Castle.Windsor" /> But, when I try to create a castle node inside the configuration node as below <castle> <components> </components> </castle> I get the following error message:"*Could not find schema information for the element 'castle*'." "*Could not find schema information for the element 'components'***." Am I missing something? I can't find why. And, if I run the application anyway, I get the following error "Could not find section 'Castle' in the configuration file associated with this domain." Ps.// The sample comes from "Pro ASP.NET MVC Framework"/Steven Sanderson/APress ISBN-13 (pbk): 978-1-4302-1007-8" on page 99. Thank you for the help ============================================================ Since I believe to have done exactly what's said in the book and did not succed, I ask the same question in different terms. How do I add a new node using the above information? ============================================================================= Thank you. I did what you said and do not have the two warnings. However, I've go a big new warning: "The element 'configuration' in namespace 'MyWindsorSchema' has invalid child element 'configSections' in namespace 'MyWindsorSchema'. List of possible elements expected: 'include, properties, facilities, components' in namespace 'MyWindsorSchema'."

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• SSRS for Sharepoint, Images in a report from a Sharepoint List URL?

  - by James Polhemus

  Greetings Sabios, I have several reports I run successfully where the data comes from a Sharepoint list in the form of an XML dataset. I am however having trouble with one. I have a report that pulls an image file onto the main body of the report. This data too comes from a Sharepoint list in the form of an XML dataset which sends me the URL to the jpeg or bmp or gif... whatever the case may be. I can successfully pull this off in my own Visual Studio IDE. My Local Report Server will render it as well It won't run on my Sharepoint Report Server (My MOSS runs through https while my Shartpoint Report Server is http might this matter?) When I upload it to Sharepoint and run it through the Sharepoint Report Server, I get back EVERYTHING in the report Header and Footer (dataset text and embedded Images) but just a big RED X where the Main Image should be. I have done everything the boards say: A. I made sure the Unattended Execution Account is running on the Reports Server B. I have insured the URL comes back in clean format (else the images wouldn't render locally either and they do) The report logs throw this exception: e ERROR: Throwing Microsoft.ReportingServices.Diagnostics.Utilities.ContainerTypeNotSupportedException: The target location you specified is not supported by the report server. A report definition (.rdl), report model (.smdl), resource, or shared data source (.rsds) file must be located within a library or a folder within it., ; Info: Microsoft.ReportingServices.Diagnostics.Utilities.ContainerTypeNotSupportedException: The target location you specified is not supported by the report server. A report definition (.rdl), report model (.smdl), resource, or shared data source (.rsds) file must be located within a library or a folder within it. Any takers? Even my Sharepoint Administrator can't help me:) James

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• iPhone core data problem : referenceData64 only defined for abstract class

  - by occe

  I have an application that downloads/parses a big XML file and store the information using core data (approx. 4000 objects (entities)). The XML is loaded/parsed in a different thread, which has its own NSManagedObjectContext. When trying to save the entities to the persistent store, I sometimes get the following error (about 20%) 2010-03-03 23:41:42.802 xxx[7487:4203] Exception in XML saving 2010-03-03 23:41:42.802 xxx[7487:4203] Description: * -_referenceData64 only defined for abstract class. Define -[NSTemporaryObjectID_default _referenceData64]! 2010-03-03 23:41:42.803 xxx[7487:4203] Name: NSInvalidArgumentException 2010-03-03 23:41:42.804 xxx[7487:4203] UserInfo: (null) 2010-03-03 23:41:42.805 xxx[7487:4203] Reason: * -_referenceData64 only defined for abstract class. Define -[NSTemporaryObjectID_default _referenceData64]! I have a simple integer to keep track of the entities the application creates compared to the insertedObjects property in the NSManagedObjectContext before saving, and when I get the error, these numbers do not match, insertedObjects in the NSManagedObjectContext is missing about 10 entities. I do not know how I should continue to investigate this problem, anyone has any idea how to fix this? Thanks /oscar

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• kanban scrumish tool(s) to get started

  - by Davide

  After investigating a little bit scrum and kanban, I finally read this answer and decided to start using kanban, picking something from scrum (note that I'm working mostly by myself, and I do have read this question and its answers). Now, my question is: which tool would be best to get started? whiteboard and postit agilezen.com JIRA with greenhopper a spreadsheet (possibly on Google Docs) brightgreenprojects.com Agilo Target Process something else (please specify) Notes about each: I would lean towards the whiteboard, but there are several drawbacks (e.g. cannot make automatic charts, time measurements, metrics, and sometimes I work from home - where I need it most - and it's not convenient to carry :-) I don't want to remember another username/password (I promised to myself to signup only to OpenID-enabled services) My employer has JIRA but my group doesn't use it - I might ask for an account (it shouldn't require another password) and maybe later involve the rest of the group. But I don't know if they are using greenhopper and if it's a big deal installing it. I generally hate spreadsheets maybe overkill? I'd be happy to have a localhost instance, but it could be problematic to give access to the whole group (per network/firewalls) - not a deal-breaker but surely a concern What I'd like to get from this? being more productive tracking how much time I spend in any given task, possibly discussing the issue with my supervisor tracking what "blocks" me most often immediately see where I am compared to my schedule manage in a better way my long todo list (e.g. answering faster to the "what I should do next?" question) Do you have any suggestion? Note on the scrumish tag: read the Henrik Kniberg's PDF. He first introduced the definition of scrumish on page 9.

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• Boosting my GA with Neural Networks and/or Reinforcement Learning

  - by AlexT

  As I have mentioned in previous questions I am writing a maze solving application to help me learn about more theoretical CS subjects, after some trouble I've got a Genetic Algorithm working that can evolve a set of rules (handled by boolean values) in order to find a good solution through a maze. That being said, the GA alone is okay, but I'd like to beef it up with a Neural Network, even though I have no real working knowledge of Neural Networks (no formal theoretical CS education). After doing a bit of reading on the subject I found that a Neural Network could be used to train a genome in order to improve results. Let's say I have a genome (group of genes), such as 1 0 0 1 0 1 0 1 0 1 1 1 0 0... How could I use a Neural Network (I'm assuming MLP?) to train and improve my genome? In addition to this as I know nothing about Neural Networks I've been looking into implementing some form of Reinforcement Learning, using my maze matrix (2 dimensional array), although I'm a bit stuck on what the following algorithm wants from me: (from http://people.revoledu.com/kardi/tutorial/ReinforcementLearning/Q-Learning-Algorithm.htm) 1. Set parameter , and environment reward matrix R 2. Initialize matrix Q as zero matrix 3. For each episode: * Select random initial state * Do while not reach goal state o Select one among all possible actions for the current state o Using this possible action, consider to go to the next state o Get maximum Q value of this next state based on all possible actions o Compute o Set the next state as the current state End Do End For The big problem for me is implementing a reward matrix R and what a Q matrix exactly is, and getting the Q value. I use a multi-dimensional array for my maze and enum states for every move. How would this be used in a Q-Learning algorithm? If someone could help out by explaining what I would need to do to implement the following, preferably in Java although C# would be nice too, possibly with some source code examples it'd be appreciated.

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• Play mp3 using Python, PyQt, and Phonon

  - by KeyboardInterrupt

  I been trying all day to figure out the Qt's Phonon library with Python. My long term goal is to see if I could get it to play a mms:// stream, but since I can't find an implementation of this done anywhere, I will figure that part out myself. (figured I'd put it out there if anyone knew more about this specifically, if not no big deal.) Anyway, I figured I'd work backwards from a working example I found online. This launches a file browser and will play the mp3 file specified. I wanted to strip out the file browser stuff and get it down to the essentials of executing the script and having it play an Mp3 file with a hardcoded path. I'm assuming my problem is a misunderstanding of setCurrentSource() and specifying the data types. (see: http://www.riverbankcomputing.co.uk/static/Docs/PyQt4/html/phonon-mediasource.html#fileName) I'm keeping my question kind of broad because ANY help with understanding Phonon would be greatly appreciated. import sys from PyQt4.QtGui import QApplication, QMainWindow, QDirModel, QColumnView from PyQt4.QtGui import QFrame from PyQt4.QtCore import SIGNAL from PyQt4.phonon import Phonon class MainWindow(QMainWindow): m_model = QDirModel() def __init__(self): QMainWindow.__init__(self) self.m_fileView = QColumnView(self) self.m_media = None self.setCentralWidget(self.m_fileView) self.m_fileView.setModel(self.m_model) self.m_fileView.setFrameStyle(QFrame.NoFrame) self.connect(self.m_fileView, SIGNAL("updatePreviewWidget(const QModelIndex &)"), self.play) def play(self, index): self.delayedInit() self.m_media.setCurrentSource( Phonon.MediaSource(self.m_model.filePath(index))) self.m_media.play() def delayedInit(self): if not self.m_media: self.m_media = Phonon.MediaObject(self) audioOutput = Phonon.AudioOutput(Phonon.MusicCategory, self) Phonon.createPath(self.m_media, audioOutput) def main(): app = QApplication(sys.argv) QApplication.setApplicationName("Phonon Tutorial 2 (Python)") mw = MainWindow() mw.show() sys.exit(app.exec_()) if __name__ == '__main__': main()

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• How to detect the character encoding of a text file?

  - by Cédric Boivin

  I try to detect which character encoding is used in my file. I try with this code to get the standard encoding public static Encoding GetFileEncoding(string srcFile) { // *** Use Default of Encoding.Default (Ansi CodePage) Encoding enc = Encoding.Default; // *** Detect byte order mark if any - otherwise assume default byte[] buffer = new byte[5]; FileStream file = new FileStream(srcFile, FileMode.Open); file.Read(buffer, 0, 5); file.Close(); if (buffer[0] == 0xef && buffer[1] == 0xbb && buffer[2] == 0xbf) enc = Encoding.UTF8; else if (buffer[0] == 0xfe && buffer[1] == 0xff) enc = Encoding.Unicode; else if (buffer[0] == 0 && buffer[1] == 0 && buffer[2] == 0xfe && buffer[3] == 0xff) enc = Encoding.UTF32; else if (buffer[0] == 0x2b && buffer[1] == 0x2f && buffer[2] == 0x76) enc = Encoding.UTF7; else if (buffer[0] == 0xFE && buffer[1] == 0xFF) // 1201 unicodeFFFE Unicode (Big-Endian) enc = Encoding.GetEncoding(1201); else if (buffer[0] == 0xFF && buffer[1] == 0xFE) // 1200 utf-16 Unicode enc = Encoding.GetEncoding(1200); return enc; } My five first byte are 60, 118, 56, 46 and 49. Is there a chart that shows which encoding matches those five first bytes?

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• how to get all group images in facebook using FACEBOOK API

  - by From.ME.to.YOU

  Hello i'm trying to get all the images from a facebook group using facebook API i have a problem i can't get all the photos using $facebook->api_client->call_method('Photos.get', array('subj_id' => $uid)); http://wiki.developers.facebook.com/index.php/Photos.get what i'm using now is the method $albums = $facebook->api_client->photos_getAlbums($uid, NULL); http://wiki.developers.facebook.com/index.php/Photos.getAlbums and then loop for ever album on $facebook->api_client->call_method('Photos.get', array('subj_id' => $uid)); then i add every new array results to my big array $big_array = array_merge($big_array,$result_array_from_that_call); 2 problems occurs here : 1- sometimes this calls fails - i think because of too many calls per second - 2- the request takes a v.long time to process is there a better way to do that? Thanks guys Cheers EDIT :: i tried to get all the images using $facebook->api_client->call_method('Photos.get', array('subj_id' => $uid)); and using $uid as the group ID but that's doesn't work " don't know why maybe because all the images is listed in groups "

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• Positioning Layers and text gradients with css

  - by Kenji Crosland

  I'm a CSS newbie trying to get some text gradients going on. I tried this code here but it didn't work for me, most likely because the h1 object is nested within a #header div. I imagine there's something to do with layers that I don't know about. Either I get a gradent block that is in front of everything or it's not appearing at all. In this particular instance this code makes a big gradient bar appear in front of everything: #header { clear:both; float:left; -moz-background-inline-policy:continuous; -moz-background-origin:padding; background:#080E73 url(../images/header-background.png) repeat-x left 0px; width:100%; max-height: 175px; color: #080E73; } #header h1 { margin-bottom: 0; color: #000; position: relative; } #header h1 span { background:url(../images/headline-text.png) repeat-x; display: block; width: 100%; height: 100%; position: absolute; } Here is the HTML (I'm using ruby on rails hence the notation) <div id="header"> <% unless flash[:notice].blank? %> <div id="notice"><%= flash[:notice] %></div> <% end %> <%= image_tag ("header-image.png") %> <h1><span></span>Headline</h1> <strong>Byline</strong> ... #navbar html... </div> I tried playing with z-index but I couldn't come up with any good results. Any ideas?

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• How do you construct an array suitable for numpy sorting?

  - by Alex

  I need to sort two arrays simultaneously, or rather I need to sort one of the arrays and bring the corresponding element of its associated array with it as I sort. That is if the array is [(5, 33), (4, 44), (3, 55)] and I sort by the first axis (labeled below dtype='alpha') then I want: [(3.0, 55.0) (4.0, 44.0) (5.0, 33.0)]. These are really big data sets and I need to sort first ( for nlog(n) speed ) before I do some other operations. I don't know how to merge my two separate arrays though in the proper manner to get the sort algorithm working. I think my problem is rather simple. I tried three different methods: import numpy x=numpy.asarray([5,4,3]) y=numpy.asarray([33,44,55]) dtype=[('alpha',float), ('beta',float)] values=numpy.array([(x),(y)]) values=numpy.rollaxis(values,1) #values = numpy.array(values, dtype=dtype) #a=numpy.array(values,dtype=dtype) #q=numpy.sort(a,order='alpha') print "Try 1:\n", values values=numpy.empty((len(x),2)) for n in range (len(x)): values[n][0]=y[n] values[n][1]=x[n] print "Try 2:\n", values #values = numpy.array(values, dtype=dtype) #a=numpy.array(values,dtype=dtype) #q=numpy.sort(a,order='alpha') ### values = [(x[0], y[0]), (x[1],y[1]) , (x[2],y[2])] print "Try 3:\n", values values = numpy.array(values, dtype=dtype) a=numpy.array(values,dtype=dtype) q=numpy.sort(a,order='alpha') print "Result:\n",q I commented out the first and second trys because they create errors, I knew the third one would work because that was mirroring what I saw when I was RTFM. Given the arrays x and y (which are very large, just examples shown) how do I construct the array (called values) that can be called by numpy.sort properly? *** Zip works great, thanks. Bonus question: How can I later unzip the sorted data into two arrays again?

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• Silverlight and Encryption, how to store/generate they key/iv pair?

  - by cmaduro

  I have a Silverlight app that connects to a php webservice. I want to encrypt the communication between the webservice and the Silverlight client. I'm not relying on SSL. I'm encrypting/decrypting the POST string myself using AES 256bit Key and IV. The big questions then are: How do I generate a random unique key/iv pair in PHP. How do I share this key/iv pair between the web service and silverlight client in a secure way. It seems impossible without having some kind of hard coded key or iv on the client. Which would compromise security. This is a public website, there are no logins. Just the requirement of secure communication. I can hard code the seed for the key/iv (which is hashed with SHA256 with a time stamp salt and then assigned as the key or iv) in PHP source code, that's on the server so that is pretty safe. However on the client the seed for the key/iv pair would be visible, if it is hard coded. Further more using a time stamp as the basis for uniqueness/randomness is definitely not ok, since timestamps are predictable. It does however provide a common factor between the C# code and the PHP code. The only other option that I can think of would be to have a 3rd service involved that provides the key/iv to the Silverlight client, as well as the php webservice. This of course start the cycle anew, with the question of how to store the credentials for accessing the key/iv distribution service on the Silverlight client. Sounds like the solution is then asymmetric encryption, since sensitive data will be viewed only on the administrative back end of the website. Unfortunately Silverlight has no asymmetric encryption classes. The solution? Roll my own Diffie-Hellman key exchange! Plug that key into AES256!

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• Ruby - Feedzirra and updates

  - by mplacona

  Hi, trying to get my head around Feedzirra here. I have it all setup and everything, and can even get results and updates, but something odd is going on. I came up with the following code: def initialize(feed_url) @feed_url = feed_url @rssObject = Feedzirra::Feed.fetch_and_parse(@feed_url) end def update_from_feed_continuously() @rssObject = Feedzirra::Feed.update(@rssObject) if @rssObject.updated? puts @rssObject.new_entries.count else puts "nil" end end Right, what I'm doing above, is starting with the big feed, and then only getting updates. I'm sure I must be doing something stupid, as even though I'm able to get the updates, and store them on the same instance variable, after the first time, I'm never able to get those again. Obviously this happens because I'm overwriting my instance variable with only updates, and lose the full feed object. I then thought about changing my code to this: def update_from_feed_continuously() feed = Feedzirra::Feed.update(@rssObject) if feed.updated? puts feed.new_entries.count else puts "nil" end end Well, I'm not overwriting anything and that should be the way to go right? WRONG, this means I'm doomed to always try to get updates to the same static feed object, as although I get the updates on a variable, I'm never actually updating my "static feed object", and newly added items will be appended to my "feed.new_entries" as they in theory are new. I'm sure I;m missing a step here, but I'd really appreciate if someone could shed me a light on it. I've been going through this code for hours, and can't get to grips with it. Obviously it should work fine, if I did something like: if feed.updated? puts feed.new_entries.count @rssObject = initialize(@feed_url) else Because that would reinitialize my instance variable with a brand new feed object, and the updates would come again. But that also means that any new update added on that exact moment would be lost, as well as massive overkill, as I'd have to load the thing again. Thanks in advance!

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• Sharepoint GetListItems using rowLimit parameter is not limiting the results returned

  - by Linda

  In SharePoint I am using the default view of a list. When I use GetListItems method I can pass into it the following: public XmlNode GetListItems ( string listName, string viewName, XmlNode query, XmlNode viewFields, string rowLimit, XmlNode queryOptions, string webID ) I am passing in "" for the viewName and am passing a rowLimit of 1000. By Default view only returns 100 items. 100 Items are still being returned not 1000. Can you use the rowLimit when not specifying a view? Is it possible to bring back 1000 items using the query instead? I do not really want to use a GUID for the viewName as I would have to look it up for each list and perform a big refactor. Update I am now using the guid of the view and my list still returns the incorrect number of items. I know the guid is being used as I sued an incorrect one and it errord out. Any ideas what could be wrong? The code that is being sent to the service is as follows: <GetListItems xmlns='http://schemas.microsoft.com/sharepoint/soap/'> <listName>Media Outlet</listName> <viewName>{2822F0D9-A905-44B5-8913-34E6497F1AAF}</viewName> <query><Query><Where><Eq><FieldRef Name='Outlet_x0020_Type' /><Value Type='Lookup'></Value></Eq></Where><OrderBy><FieldRef Name='Title' /></OrderBy></Query></query> <ViewFields></ViewFields> <RowLimit>10000</RowLimit> <QueryOptions></QueryOptions> <webID></webID> </GetListItems>

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• Insert some data at later point once serialization(binary serialization) is done for a class

  - by coolcake

  My application is written in C# and I am a newbie to C#. I am facing with a problem during serialization. The problem is as follows. There are many classes in my project and when serialization is called on one of the main class object it serializes itself and during this process many of the member objects are also get serialized. This whole serialization is done in to a file with extension say ".bin". This bin file size should be of size max 20MB. In this process of serialization one of my other class also gets serialized to a stream, this class is having a big array. The size of this array or list can be of 80 MB or more. So during serialization i have serialize all the objects other than this array and depending upon the size left in the 20MB I need to add in between the serialization the number of array elements which can fit in the remaining memory. For the other array elements left out I have to create a similar kind of .bin file with all the objects serialized and in between need to insert the number of array elements that can fit there. The main problem here is the array elements get inserted at runtime and this list keeps on increasing. So i should be creating .bin files continuously until my application runs. Any ideas how can i implement a solution for this problem? Thanks in Advance.

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• Weird RecordStore behavior when RecordStoreFullException occurs

  - by Michael P

  Hello everyone! I'm developing a small J2ME application that displays bus stops timetables - they are stored as records in MIDP RecordStores. Sometimes records can not fit a single RecordStore, especially on record update - using setRecord method - a RecordStoreFullException occurs. I catch the exception, and try to write the record to a new RecordStore along with deleting the previous one in the old RecordStore. Everything works fine except of deleting record from RecordStore where the RecordStoreFullException occurs. If I make an attempt to delete record that could not be updated, another Exception of type InvalidRecordIDException is thrown. This is weird and undocumented in MIDP javadoc. I have tested it on Sun WTK 2.5.2, MicroEdition SDK 3.0 and Nokia Series 40 SDK. Furthermore I created a code that reproduces this strange behaviour: RecordStore rms = null; int id = 0; try { rms = RecordStore.openRecordStore("Test", true); byte[] raw = new byte[192*10024]; //Big enough to cause RecordStoreFullException id = rms.addRecord(raw, 0, 160); rms.setRecord(id, raw, 0, raw.length); } catch (Exception e) { try { int count = rms.getNumRecords(); RecordEnumeration en = rms.enumerateRecords(null, null, true); count = en.numRecords(); while(en.hasNextElement()){ System.out.println("NextID: "+en.nextRecordId()); } rms.deleteRecord(id); //this won't work! rms.setRecord(id, new byte[5], 0, 5); //this won't work too! } catch (Exception ex) { ex.printStackTrace(); } } I added extra enumeration code to produce other weird behavior - when RecordStoreFullException occurs, count variable will be set to 1 (if RMS was empty) by both methods - getNumRecords and numRecords. System.out.println will produce NextID: 0! It is not acceptable because record ID can not be 0! Could someone explain this strange behavior? Sorry for my bad English.

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• WPF: disable inheritance of properties

  - by Maximilian Csuk

  Hi! I would like to use a TabControl as the main navigation in the application I am working on. So I would like to make the font in the headers of the TabItems bigger and also give it another background-color. However, I do not want this to be inherited. For example, if I use this code: <TabControl FontSize="18pt"> <TabItem Header="Tab 1"> <Button>Button 1</Button> </TabItem> </TabControl> The font in the button is also 18pt big. I know that this is normal dependency property behaviour because the property is inherited, but that's not what I want in this case. I would like to change the TabItems without changing anything in the children. Isn't that possible? Because re-setting all children to default values is a PITA. Thanks for your time.

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• Scaling a CBitmap - what am I doing wrong?

  - by Smashery

  I've written the following code, which attempts to take a 32x32 bitmap (loaded through MFC's Resource system) and turn it into a 16x16 bitmap, so they can be used as the big and small CImageLists for a CListCtrl. However, when I open the CListCtrl, all the icons are black (in both small and large view). Before I started playing with resizing, everything worked perfectly in Large View. What am I doing wrong? // Create the CImageLists if (!m_imageListL.Create(32,32,ILC_COLOR24, 1, 1)) { throw std::exception("Failed to create CImageList"); } if (!m_imageListS.Create(16,16,ILC_COLOR24, 1, 1)) { throw std::exception("Failed to create CImageList"); } // Fill the CImageLists with items loaded from ResourceIDs int i = 0; for (std::vector<UINT>::iterator it = vec.begin(); it != vec.end(); it++, i++) { CBitmap* bmpBig = new CBitmap(); bmpBig->LoadBitmap(*it); CDC bigDC; bigDC.CreateCompatibleDC(m_itemList.GetDC()); bigDC.SelectObject(bmpBig); CBitmap* bmpSmall = new CBitmap(); bmpSmall->CreateBitmap(16, 16, 1, 24, 0); CDC smallDC; smallDC.CreateCompatibleDC(&bigDC); smallDC.SelectObject(bmpSmall); smallDC.StretchBlt(0, 0, 32, 32, &bigDC, 0, 0, 16, 16, SRCCOPY); m_imageListL.Add(bmpBig, RGB(0,0,0)); m_imageListS.Add(bmpSmall, RGB(0,0,0)); } m_itemList.SetImageList(&m_imageListS, LVSIL_SMALL); m_itemList.SetImageList(&m_imageListL, LVSIL_NORMAL);

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• Ext3 fs: Block bitmap for group 1 not in group (block 0). is fs dead?

  - by ip

  Hi, My company has a server with one big partition with Mysql database and php files. Now this partition seems to be corrupted, as reported from kernel messages when I tried to mount it manually: [329862.817837] EXT3-fs error (device loop1): ext3_check_descriptors: Block bitmap for group 1 not in group (block 0)! [329862.817846] EXT3-fs: group descriptors corrupted! I've tried to recovery it running tools from a PLD livecd. These are the tools I have tested: - e2retrieve - testdisk - photorec - dd_rescue/dd_rhelp - ddrescue - fsck.ext2 - e2salvage without any success. dumpe2fs 1.41.3 (12-Oct-2008) Filesystem volume name: /dev/sda3 Last mounted on: <not available> Filesystem UUID: dd51610b-6de0-4392-a6f3-67160dbc0343 Filesystem magic number: 0xEF53 Filesystem revision #: 1 (dynamic) Filesystem features: has_journal filetype sparse_super Default mount options: (none) Filesystem state: not clean with errors Errors behavior: Continue Filesystem OS type: Linux Inode count: 9502720 Block count: 18987570 Reserved block count: 949378 Free blocks: 11555345 Free inodes: 11858398 First block: 0 Block size: 4096 Fragment size: 4096 Blocks per group: 32768 Fragments per group: 32768 Inodes per group: 16384 Inode blocks per group: 512 Last mount time: Wed Mar 24 09:31:03 2010 Last write time: Mon Apr 12 11:46:32 2010 Mount count: 10 Maximum mount count: 30 Last checked: Thu Jan 1 01:00:00 1970 Check interval: 0 (<none>) Reserved blocks uid: 0 (user root) Reserved blocks gid: 0 (group root) First inode: 11 Inode size: 128 Journal inode: 8 Journal backup: inode blocks dumpe2fs: A block group is missing an inode table while reading journal inode There's any other tools I have to test before considering these disk definitely unrecoverable? Many thanks, ip

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• What are common anti-patterns when using VBA

  - by Ahmad

  I have being coding a lot in VBA lately (maintenance and new code), specifically with regards to Excel automation etc. = macros. Typically most of this has revolved around copy/paste, send some emails, import some files etc. but eventually just ends up as a Big ball of mud As a person who values clean code, I find it very difficult to produce 'decent' code when using VBA. I think that in most cases, this is a direct result of the macro-recorder. Very helpful to get you started, but most times, there are one too many lines of code that achieve the end result. Edit: The code from the macro-recorder is used as a base to get started, but is not used in its entirety in the end result I have already created a common addin that has my commonly used subroutines and some utility classes in an early attempt to enforce some DRYness - so this I think is a step in the right direction. But I feel as if it's a constant square peg, round hole situation. The wiki has an extensive list of common anti-patterns and what scared me the most was how many I have implemented in one way or another. The question Now considering, that my mindset is OO design, what some common anti-patterns and the possible solutions when designing a solution (think of this - how would designing a solution using Excel and VBA be different from say a .net/java/php/.../ etc solution) ; and when doing common tasks like copying data, emailing, data importing, file operations... etc An anti-pattern as defined by Wikipedia is: In software engineering, an anti-pattern (or antipattern) is a pattern that may be commonly used but is ineffective and/or counterproductive in practice

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