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  • What is the proper way to handle non-tracking self tracking entities?

    - by Will
    Self tracking entities. Awesome. Except when you do something like return Db.Users; none of the self-tracking entities are tracking (until, possibly, they are deserialized). Fine. So we have to recognize that there is a possibility that an entity returning to us does not have tracking enabled. Now what??? Things I have tried For the given method body: using (var db = new Database()) { if (update.ChangeTracker.ChangeTrackingEnabled) db.Configurations.ApplyChanges(update); else FigureItOut(update, db); db.SaveChanges(); update.AcceptChanges(); } The following implementations of FigureItOut all fail: db.Configurations.Attach(update); db.DetectChanges(); Nor db.Configurations.Attach(update); db.Configurations.ApplyCurrentValues(update); Nor db.Configurations.Attach(update); db.Configurations.ApplyOriginalValues(update); Nor db.Configurations.Attach(update); db.Configurations.ApplyChanges(update Nor about anything else I can figure to throw at it, other than Getting the original entity from the database Comparing each property by hand Updating properties as needed What, exactly, am I supposed to do with self-tracking entities that aren't tracking themselves??

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  • What issues to consider when rolling your own data-backend for Silverlight / AJAX on non-ASP.NET ser

    - by Edward Tanguay
    I have read-only Silverlight and AJAX apps which read static text and XML files from a PHP/Apache server, which works very nicely with features such as asynchronous loading, lazy-loading only what I need for each page, loading in the background, developed a little query language to get a PHP script to create custom XML files etc. it's pragmatic read-only REST, and all works fast and fine for read-only sites. Now I want to also add the ability to write data from these apps to a database on the same PHP/Apache server. For those of you who have built similar data-access layers, what do I need to consider while building this, especially regarding security so that not just any client can write and alter my database, e.g.: check HTTP_USER_AGENT for security check REMOTE_ADDR for security require a special code for security, perhaps a list of TAN codes (such as banks use for online transactions) each which can only be used once, both the client and server have these I wonder if there is some kind of standard REST query I should lean on for e.g. building SQL-like statements in the URL parameters, e.g. http://www.thedatalayersite.com/query?insertinto=customers&... Any thoughts, notes from experience, ideas, gotchas, especially ideas on tightening down security in this endeavor would be helpful.

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  • How to write a JOIN statement to combine data from disparate tables

    - by Amarundo
    I have the following 2 procedures that I use as my source for a report. As of now, I'm presenting 2 different tables in my SQL Server Reporting Services 2008 R2 report, because it doesn't let me put them together as they belong to 2 different data sets. I want to present them in a single table, but I have not been successful trying to use JOIN here. How do I do that? NOTE: cName in IAgentQueueStats corresponds to UserId in AgentActivityLog. /*** Aggregate values for Call Center Agents for calls, talk and hold time ***/ /*** The detail/row values is per 30-minute interval ***/ ALTER PROCEDURE [dbo].[sp_IAgentQueueStats_OnlyCalls_Grouped] @p_StartDate datetime, @p_EndDate datetime, @p_Agents varchar(8000) AS SELECT [cName] ,sum([nAnswered]) SumNAnswered ,sum([nAnsweredAcd]) SumNAnsweredAcd ,sum([tTalkAcd]) SumTTalkAcd ,sum([nHoldAcd]) SumNHoldAcd ,sum([tHoldAcd]) SumTHoldAcd ,sum([tAcw]) SumTAcw FROM [I3_IC].[dbo].[IAgentQueueStats] WHERE dIntervalStart between @p_StartDate and DATEADD(s, 86400-1, @p_EndDate) AND CHARINDEX ( cName ,@p_Agents)> 0 AND cReportGroup <> '*' AND cHKey3 = '*' and cHKey4 ='*' AND nEnteredAcd > 0 AND cReportGroup <> 'CCFax Email' GROUP BY cName And here is the second one: /*** Aggregate values for Call Center Agents for status/activity time ***/ /*** The detail/row values is per start-time/end-time ***/ ALTER PROCEDURE [dbo].[sp_AgentActivity_Grouped] @p_StartDate datetime, @p_EndDate datetime, @p_Agents varchar(8000) AS SELECT [UserId],[StatusCategory],SUM([StateDuration]) [StatusDuration] FROM ( SELECT [UserId] ,[StatusGroup] ,[StatusKey] , CASE [StatusKey] WHEN 'Available' THEN 'Productive' WHEN 'Follow Up' THEN 'Productive' WHEN 'Campaign Call' THEN 'Productive' WHEN 'Awaiting Callback' THEN 'Productive' WHEN 'In a Meeting' THEN 'Not Your Fault' WHEN 'Project Work' THEN 'Not Your Fault' WHEN 'At a Training Session'THEN 'Not Your Fault' WHEN 'System Issues' THEN 'Not Your Fault' WHEN 'Test' THEN 'Not Your Fault' WHEN 'At Lunch' THEN 'Non Productive' WHEN 'Available, Forward' THEN 'Non Productive' WHEN 'Available, Follow-Me' THEN 'Non Productive' WHEN 'At Play' THEN 'Non Productive' WHEN 'AcdAgentNotAnswering' THEN 'Non Productive' WHEN 'Do Not Disturb' THEN 'Non Productive' WHEN 'Available, No ACD' THEN 'Non Productive' WHEN 'Away from desk' THEN 'Non Productive' ELSE [StatusKey] END StatusCategory ,stateduration FROM [I3_IC].[dbo].[AgentActivityLog] WHERE [StatusDateTime] between @p_StartDate and DATEADD(s, 86400-1, @p_EndDate) AND CHARINDEX ( [UserId] ,@p_Agents)> 0 AND [StatusKey] not in ('Gone Home','Out of the Office','On Vacation','Out of Town') ) a GROUP BY [UserId],[StatusCategory] ORDER BY [UserId], [StatusCategory] desc BTW, if I take some time to comment/reply on your posts, it's not lack of interest, but of understanding...

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  • TypeError: Error #1007: Instantiation attempted on a non-constructor. on port to Flex 4

    - by Josh Handel
    I have been porting an app from Flex 3.4.x to 4.0.. I have successfully ported the app and its libraries to flex 4.0, I've also removed ALL the references to http://www.adobe.com/2006/flex/mx in any of my mxml files... In short I "think" I have moved everything over to the new mx framework (2009).. But I still get the following error (which never happend in 3.4 or 3.5 with this same app) when I try to run my flex app. TypeError: Error #1007: Instantiation attempted on a non-constructor. at mx.preloaders::Preloader/initialize()[E:\dev\4.0.0\frameworks\projects\framework\src\mx\preloaders\Preloader.as:253] at mx.managers::SystemManager/http://www.adobe.com/2006/flex/mx/internal::initialize()[E:\dev\4.0.0\frameworks\projects\framework\src\mx\managers\SystemManager.as:1925] at mx.managers::SystemManager/initHandler()[E:\dev\4.0.0\frameworks\projects\framework\src\mx\managers\SystemManager.as:2419] At this point I am completely stumped.. anyone have any ideas? Thanks

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  • CentOS RPM database trashed, "rpm --rebuilddb" won't fix, can I recover using /var/lib/rpm/ from a 2

    - by user18330
    My RPM database is shot, neither rpm or yum works. Supposedly "rpm --rebuilddb" will fix it, but it doesn't in my case. This server has three sister servers that are basically identical, and have working RPM databases. I tried copying /var/lib/rpm/ from working server to the sick one, but that didn't fix it. Any ideas of how I can use good server's rpm to fix the sick one?

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  • Permission denied: cannot call non-public or static methods remotely.

    - by rstat1
    Ok I've found a solution to this particular error message on here already. But my case is slightly different. There are no "non-public" or "static" methods in my code. All are public. What I'm trying to do is pass a FrameworkElement (more specifically a web browser control) that was created in one process over to another process for display and use. Also I'm not using (and would to avoid using) any of the framework 3.5 addin stuff. Fails at the following line everytime. fe = FrameworkElementAdapters.ContractToViewAdapter(tab.ReturnBrowserObject) tab.ReturnBrowserObject returns an INativeHandleContract which the above line is suppose to convert to a FrameworkElement.

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  • What is a Perl regex for finding the first non-consecutively-repeating character in a string.

    - by DVK
    Your task, should you choose to accept it, is to write a Perl regular expression that for a given string, will return the first occurence of a character that is not consecutively duplicated. In other words, both preceded AND succeeded by characters different from itself (or start/end of string respectively). Example: IN: aabbcdecc OUT: c Please note that "not consecutively duplicated" does not mean "anywhere in the string". NOTE: it must be a pure regex expression. E.g. the solution that obviously comes to mind (clone the string, delete all the duplicates, and print the first remaining character) does not count, although it solves the problem. The question is inspired by my somewhat off-topic answer to this: http://stackoverflow.com/questions/2548606/perl-function-to-find-first-non-repeating-character-in-a-string

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  • Ofice for Mac 2011 does not start, how do I repair the database?

    - by RomanT
    After a TimeMachine restore; Office 2011 is having kittens over permissions it would seem. Having attempted a 'repair' out of Disk Utility, am still seeing: there is a problem with the Office database upon startup, after which Word/Excel work without issues. Outlook on the other hand won't even start. Given the obvious message here "You do not have write access to the Outlook application folder" – where is the DB located to check?

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  • Is regex too slow? Real life examples where simple non-regex alternative is better

    - by polygenelubricants
    I've seen people here made comments like "regex is too slow!", or "why would you do something so simple using regex!" (and then present a 10+ lines alternative instead), etc. I haven't really used regex in industrial setting, so I'm curious if there are applications where regex is demonstratably just too slow, AND where a simple non-regex alternative exists that performs significantly (maybe even asymptotically!) better. Obviously many highly-specialized string manipulations with sophisticated string algorithms will outperform regex easily, but I'm talking about cases where a simple solution exists and significantly outperforms regex. What counts as simple is subjective, of course, but I think a reasonable standard is that if it uses only String, StringBuilder, etc, then it's probably simple.

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  • Should primitive types or non-primitive types be preferred in Java interfaces?

    - by Greg Mattes
    (I thought I once read something about this in a book, but now I'm not sure where to find it. If this question reminds you of some material that you've read, please post a reference!) What are the pros and the cons of primitives in interfaces? In other words, is one of these preferable to the other and why? Perhaps one is preferable to the other in certain contexts? public interface Foo { int getBar(); } or public interface Foo { Integer getBar(); } Similarly: public interface Boz { void someOperation(int parameter); } or public interface Boz { void someOperation(Integer parameter); } Obviously there's the issue of having to deal with nulls in the non-primitive case, but are there deeper concerns?

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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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  • Options for non-native form inputs for the web?

    - by Sam Lee
    I'm wondering if there are any good non-native form inputs for web development? I am currently using the built in <input> controls. They work just fine, but for my application they are too big (especially on OS X). I am wondering if there are any libraries that I can drop in as replacements. I am especially interested in ones that: Are a close to native control behavior as possible. Support for tabbing, highlighting current textbox, pressing up/down in <select>, etc. Have something that replicates <select> Look good and are compact I am aware that you can use CSS for some styling, but it's pretty minimal and looks different depending on the browser. Thanks for your help.

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  • What database works well with 200+GB of data?

    - by taw
    I've been using mysql (with innodb; on Amazon rds) because it's sort of universal default, but it's been ridiculously under-performing, and tweaking it only delays the inevitable. The data is mostly relatively short (<1kB of bytes each) blobs information about 100Ms of urls. There is (or should be, mysql cannot seem to handle it) very high amount of insert / update / retrieve but few complex queries - not that complex queries wouldn't be useful, but because mysql is so slow that it's far faster to get the data out, process it locally, and cache the results somewhere. I can keep tweaking mysql and throwing more hardware at it, but it seems increasingly futile. So what are the options? SQL/relational model/etc. optional - anything will do as long as it's fast, networked, and language-independent.

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  • Is "non breaking change" a common term in revision control?

    - by mafutrct
    Non breaking change is a term used to describe minor contributions which are supposed to not break anything and is abbreviated as NBC. Typical example include formatting a source file or adding a comment - it really, really should not break the build (of course there are always exceptional cases). Is this a common term in revision control talk? I'm especially asking those familiar with RC systems. I use "NBC" on occasion but I never heard anyone else using it so I wondered... (btw: Don't trust wikipedia as a source on this)

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  • How do I assign a non-persistent (in-memory) cookie in ASP.NET?

    - by Jørn Schou-Rode
    The following code will send a cookie to the user as part of the response: var cookie = new HttpCookie("theAnswer", "42"); cookie.Expires = DateTime.Now.AddDays(7); Response.Cookies.Add(cookie); The cookie is of the persistent type, which by most browsers will be written to disk and used across sessions. That is, the cookie is still on the client's PC tomorrow, even if the browser and the PC has been closed in between. After a week, the cookie will be deleted (due to line #2). Non-persistent/in-memory cookies are another bread of cookies, which have a lifespan determined by the duration of the client's browsing session. Usually, such cookies are held in memory, and they are discarded when the browser is closed. How do I assign an in-memory cookie from ASP.NET?

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  • How to lock non-browser clients from submitting a request?

    - by Thomas Kohl
    I want to block non-browser clients from accessing certain pages / successfully making a request. The website content is served to authenticated users. What happens is that our user gives his credentials to our website to 3rd party - it can be another website or a mobile application - that performs requests on his behalf. Say there is a form that the user fills out and sends a message. Can I protect this form so that the server processing the submission can tell whether the user has submitted it directly from the browser or not? I don't want to use CAPTCHA for usability reasons. Can I do it with some javascript?

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  • How do I force SSL for some URLs and force non-SSL for all others?

    - by brad
    I'd like to ensure that certain URLs on my site are always accessed via HTTPS while all other URLs are accessed via HTTP. I can get either case working in my .htaccess file, however if I enable both, then I get infinite redirects. My .htaccess file is: <IfModule mod_expires.c> # turn off the module for this directory ExpiresActive off </IfModule> Options +FollowSymLinks AddHandler application/x-httpd-php .csv RewriteEngine On RewriteRule ^/?registration(.*)$ /register$1 [R=301,L] # Force SSL for certain URL's RewriteCond %{HTTPS} off RewriteCond %{REQUEST_URI} (login|register|account) RewriteRule ^(.*)$ https://%{HTTP_HOST}%{REQUEST_URI} [R=301,L] # Force non-SSL for certain URL's RewriteCond %{HTTPS} on RewriteCond %{REQUEST_URI} !(login|register|account) RewriteRule ^(.*)$ http://%{HTTP_HOST}%{REQUEST_URI} [R=301,L] # Force files ending in X to use same protocol as initial request RewriteRule \.(gif|jpg|jpeg|jpe|png|ico|css|js)$ - [S=1] # Use index.php as the controller RewriteCond %{REQUEST_URI} !\.(exe|css|js|jpe?g|gif|png|pdf|doc|txt|rtf|xls|swf|htc|ico)$ [NC] RewriteCond %{REQUEST_URI} !^(/js.*)$ RewriteRule ^(.*)$ index.php [NC,L]

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  • Easy Way for Non-Nerd to Manage Simple Site?

    - by Mark Evans
    Hi I'm not sure if this is an appropriate question for StackOverflow. I have a friend show wants a simple "Brochure Ware" web site. I could make it for him but it would be better if he could manage it himself. Are there any services out there that allow a non-technical person to create and maintain a very simple site? I'm thinking just a few pages - contact, about, home with some photos and general info. He also wants to sell some stuff but I'm going to suggest he does this using EBay but the web site would be a handy reference for potential customers who want to know more about him and his services. Thanks a lot! Cheers Mark

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  • How to block non-browser clients from submitting a request?

    - by Thomas Kohl
    I want to block non-browser clients from accessing certain pages / successfully making a request. The website content is served to authenticated users. What happens is that our user gives his credentials to our website to 3rd party - it can be another website or a mobile application - that performs requests on his behalf. Say there is a form that the user fills out and sends a message. Can I protect this form so that the server processing the submission can tell whether the user has submitted it directly from the browser or not? I don't want to use CAPTCHA for usability reasons. Can I do it with some javascript?

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  • What good timesheet should and shouldn't have for a small (non programming) 50 people company?

    - by MadBoy
    I'm sure most people here had to fill at least one time sheet in their life that made their life miserable, hell it's even the worst time taker ever especially after you have to fill it in hurry. I will be developing some simple TimeSheet application for a small company of 50 people (non programming related, it's actually 4 companies working together) and would like it to be user friendly and as less disturbing as possible. So what in your opinion makes it a good timesheet (lack of it doesn't count :p), what data it should store? Should be only hours per day with possibility to choose project, company and simple overview what you have worked on like: Day 1, 3:00, 'Company 1', 'Project5', 'Name', Short Overview Day 1, 5:00, 'Company 2', 'Project6', 'Name', Short Overview Or should it gather more data? Would it be realy bad if it were an WinForms application considering that I don't know ASP.NET or any other web based language? I would be deploying it using ClickOnce or so.

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