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• Using generics in dotnet for functions with any number of arguments?

  - by Zarigani

  I would like to have a function that can "wrap" any other function call. In this particular case, it would allow me to write some more generic transaction handling around some specific operations. I can write this for any particular number of arguments, e.g. for one argument: Public Shared Sub WrapFunc(Of T)(ByVal f As Action(Of T), ByVal arg As T) ' Test some stuff, start transaction f(arg) ' Test some stuff, end transaction End Sub ... but I was hoping to have this handle any number of arguments without having to have duplicate code for 0 args, 1 arg, 2 args, etc. Is there a way of doing this?

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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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• How to manage different form contexts of same form element in single DOM tree

  - by nimp

  Hi, As my question title could be bit unclear to you (I tried best), following is what I'm exactly trying to do. I'm having a form element (say a user_info form), where such form elements will be generated for different users by java script and displayed in different js tabs (example: dojo tabs). once form elements are generated, later I need to react on user actions performed on different html elements defined inside user_info form. In this case I need to identify what is the context (in which user_info form element) in which user is working on. The simplest example would be how to retrieve form id of the form in which user actions are being performed. According to my understanding, I can not simply retrieve from by form id, because now DOM tree contains duplicate form instances of the same from element. So, IS there anyway, I could identify form context based on the user actions on its input elements. Thank You.

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• C++: FFMPEG and SDL resources

  - by advs89

  I'm looking for resources (preferably books, but websites are fine too) for using FFMPEG and/or SDL with C++. Stuff I'd like to be able to do (eventually): Decode and play videos in realtime to a QT widget (the QT part isn't a problem) Overlay text and images on the video (in realtime) Loop video Cross-fade from one video to another (in realtime) Some kind of DVD functionality LIVE sources? (i.e. webcam, stream, etc.) So far I've looked at (and consider helpful) the following resources: FFMPEG and SDL Tutorial by Dranger (extremely helpful) StackOverflow: ffmpeg C API documentation/tutorial (not a duplicate, btw) Sample code bundled with FFMPEG libraries (I'll try and update this list with anything helpful below) Thanks for any help... Also: Operating System is Windows (but maybe one day cross-platform) Also 2: Resources using alternatives are welcome too... i.e. DirectShow, VFW, etc.

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• How should I synchronize lists in WCF?

  - by mafutrct

  I've got a WCF service that offers multiple lists of items of different types. The lists can be changed on the server. Every change has to be published to all clients to make sure every client has an up-to-date copy of each server list. Currently I'm using this strategy: On login, every client receives the current status of every list. On every change, the added or removed item is sent to all clients. The drawback is that I have to create a callback for every list, since the items are of different types. Is there a pattern I could apply? Or do I really have to duplicate code for each of the lists?

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• find a specific string pattern in an array jquery

  - by Bwyss

  Apologies if this is a duplicate, but I can't seem to find the solution. I am trying to find a specific string pattern in an array. I want to find all values in data that contain 'underscore r underscore'. I then want to create a new array that contains only those keys and values. var data = ["something", "bar_r_something"]; var resultArray = new Array(); for (var i = 0; i < data.length; i++) { var bar = /_r_/; if ($.inArray(bar, data[i].length) > 0) { console.log("found _r_"); resultArray.push(data[i]); } }; I just can't seem to get that $.inArray to work, it seems to always kick out -1.

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• Escaping if/else in Jade template

  - by Collin Estes

  So I have a simply block of html in my jade template with a loop: each dude, i in dudes div(class='someClass') div.otherStuff span.someContent #{name} I want to apply a data attribute to my top most div when a certain looping condition is met, in this case the first dude, I set it up like this each dude, i in dudes if i == 0 div(class='someClass, data-someAttr='first dude') else div(class='someClass') div.otherstuff span.someContent Setup like this it causes the div.otherStuff div and the span.someContent to only display on the else condition. I've moved the tab spaces around on those items but I can't get it escape that else and give the div.otherStuff and span.someContent to both the first dude and the subsequent dudes after that. I've also tried setting that data attr to a variable and trying to apply it that way but without any success. What I end up doing to get around it is this: each dude, i in dudes if i == 0 div(class='someClass, data-someAttr='first dude') div.otherstuff span.someContent else div(class='someClass') div.otherstuff span.someContent How do I escape that if/else so I dont have to duplicate the div.otherStuff and span.someContent?

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• C# template engine

  - by me

  Hi! I am looking for a stand-alone, easy to use from C# code, template engine. What I want to do is create an html and xml files with placeholders for data, and fill them with data from my code. The engine needs to support loops (duplicating parts of the template form more that one object) and conditions (add parts of the template to the final html/xml only if some conditions are true). Can someone recommend a good option for me, and add a link to more-or-less such code sample, and some documentation about how to use the recommended component for my needs? Thanks:) Just wanted to add one more thing - I also need to use loops to duplicate table rows, or even entire tables (in the html version) and complex elements (in the xml version) Thanks again:)

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• Use a named custom column in SQL 2005 in WHERE clause?

  - by Orange Kid

  Can I name a custom column in the SELECT statement and reference that in the WHERE clause without duplicating code? For example; SELECT RIGHT(REPLICATE('0', 5) + RTRIM(SOME_ID)), 5) AS DISPLAY_ID FROM dbo.MY_TABLE WHERE DISPLAY_ID LIKE '%005%' Only much more complicated. I want to maintain this code in one place only but SQL Server 2005 forces me to duplicate the custom SELECT in the WHERE clause. I believe this was possible in Microsoft SQL Server 2000 but no longer in 2005. Thanks.

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• A tool to determine jar dependencies based on existing code?

  - by geoffeg

  Is there a tool that can determine .jar dependencies given a directory of .jar files and a separate directory of java source code? I need to generate Eclipse .classpath files based on an existing code base that doesn't have any dependencies defined. To be more specific, I've been given a large codebase consisting of a dozen or so J2EE-style projects and a single directory of jar files. My client uses a custom development and build framework that is just too arcane for me to use and get any real work done. The projects do not have any information about their dependencies, either between projects or to jar libraries. I would expect this tool would have to spin through each jar file, indexing the classes available in that file and then go through each file in the project source code tree and match up the dependencies, possibly writing out a .classpath file with the required jar files. I realize this is a rather simplistic view of the operation, as duplicate classes among the jar files and such might make things more difficult.

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• ORACLE -1401 error

  - by Sachin Chourasiya

  I have a stored procedure in Oracle 9i which inserts records in a table. The table has a primary key built to ensure duplicte rows doesnot exists. I am trying to insert a record by calling this stored procedure and it works first time properly. I am again trying to insert a duplicate record and expecting unique constraint violation error. But I am getting ORA-01401 inserted value too large for column I knew its meaning but my query is , if the value inserted is really large then how it got successful in the first attempt.

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• MySql Query to return number of photos in each album

  - by GivenPie

  MY table is set up like this, all I need to do is call a query to my Photos table. I have PhotoID as the primary key and GalleryID as the foreign key to Gallery. How can I could the number of unique PhotoID's for each multiple GalleryIDs. So to speak there are may duplicate GalleryIDs because there are many photos in a gallery. So I just need to could the number of unique PhotoIDs associated with that GalleryID. Can it be done in one query?

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• How to generate random strings that match a given regexp?

  - by Pies

  Duplicate: Random string that matches a regexp No, it isn't. I'm looking for an easy and universal method, one that I could actually implement. That's far more difficult than randomly generating passwords. I want to create an application that takes a regular expression, and shows 10 randomly generated strings that match that expression. It's supposed to help people better understand their regexps, and to decide i.e. if they're secure enough for validation purposes. Does anyone know of an easy way to do that? One obvious solution would be to write (or steal) a regexp parser, but that seems really over my head. I repeat, I'm looking for an easy and universal way to do that. Edit: Brute force approach is out of the question. Assuming the random strings would just be [a-z0-9]{10} and 1 million iterations per second, it would take 65 years to iterate trough the space of all 10-char strings.

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• Truncating a table referenced by a foreign key

  - by born to hula

  Hey, We have two tables in a SQL Server 2005 database, A and B.There is a service which truncates table A every day. Recently, a foreign key constraint was added to table B, referencing table A. As a result, it isn't possible truncating table A anymore, even if table B is empty. Is there any workaround to get the same result as truncating table A? I've already tried the approach below but the identity wasn't reset. DBCC CHECKIDENT (TABLENAME, RESEED, 0) PS. before anyone points this as a duplicate, the different thing here is that I'm not allowed to drop constraints, nor creating any.

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• How to update existing record if the one being saved has the same key?

  - by Pavel Shved

  MySQL has a very nice option for INSERT statement, which is particularly helpful for join tables without the id column. It inserts a record, but, instead of throwing an error if its key clashed with the existing one, that record is updated. Here's an example: INSERT INTO table (key1,key2,data) VALUES (1,2,3) ON DUPLICATE KEY UPDATE c=3; How to achieve the same with ActiveRecord? The code looks like this: class Model < ActiveRecord::Base belongs_to :key1 belongs_to :key2 end record = Model.new record.key1 = key1 record.key2 = key2 record.data = 'new data' record.WHAT? #Inserts or updates `data` for the existing record

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• Can log4net appenders be defined in their own XML files?

  - by ladenedge

  I want to define a handful of (ADO.NET) appenders in my library, but allow users of my library to configure the use of those appenders. Something like this seems to be what I want: XmlConfigurator.Configure(appenderStream1); XmlConfigurator.Configure(appenderStream2); XmlConfigurator.Configure(); But that doesn't seem work, in spite of the debug output containing messages like this: Configuration update mode [Merge]. What is the right way to do this? Or, is there an alternative to asking users to duplicate large chunks of XML configuration?

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• How to get sites identical in content but different in language and TLD indexed by major search engi

  - by mojo77

  Hi! Is it possible to get two "editions" of a website both indexed by the major search engines (Google/Yahoo/Bing/Teoma) which differ in content language only and are hosted under different TLDs? Say English content is available at "http://domain.com/", German content at "http://domain.de/". Now, if e.g. Google.com is used I want it to list the "domain.com" entry and vice versa. Is "Duplicate Content" an issue here? Thanks so much for advising me!

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• Merging tables in MySQL - sum up columns

  - by Alan Williamson

  I have an interesting problem, that i am sure has a simple answer, but i can't seem to find it in the docs. I have two separate database tables, on different servers. They are both identical table schema with the same primary keys. I want to merge the tables together on one server. But, if the row on Server1.Table1 exists in Server2.Table2 then sum up the totals in the columns i specify. Table1{ column_pk, counter }; "test1", 3 "test2", 4 Table2{ column_pk, counter }; "test1", 5 "test2", 6 So after i merge i want: "test1",8 "test2",10 Basically i need to do a mysqldump but instead of it kicking out raw INSERT statements, i need to do a INSERT..ON DUPLICATE KEY UPDATE statements. What are my options? Appreciate any input, thank you

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• Library for Dataflow in C

  - by msutherl

  How can I do dataflow (pipes and filters, stream processing, flow based) in C? And not with UNIX pipes. I recently came across stream.py. Streams are iterables with a pipelining mechanism to enable data-flow programming and easy parallelization. The idea is to take the output of a function that turns an iterable into another iterable and plug that as the input of another such function. While you can already do this using function composition, this package provides an elegant notation for it by overloading the operator. I would like to duplicate a simple version of this kind of functionality in C. I particularly like the overloading of the operator to avoid function composition mess. Wikipedia points to this hint from a Usenet post in 1990. Why C? Because I would like to be able to do this on microcontrollers and in C extensions for other high level languages (Max, Pd*, Python). * (ironic given that Max and Pd were written, in C, specifically for this purpose – I'm looking for something barebones)

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• How does Process Explorer enumerate all process names from an XP Guest account?

  - by Joe

  I'm attempting to enumerate all running process EXE names, and have stumbled when attempting this on the XP Guest account. I am able to enumerate all Process IDs using EnumProcesses, but when I attempt OpenProcess with PROCESS_QUERY_INFORMATION Or PROCESS_VM_READ, the function fails. I fired up Process Explorer under the XP Guest account, and it was able to enumerate all process names (though as expected, most other information from processes outside the Guest user-space was not present). So, my question is, how can I duplicate the Process Explorer magic to get the process names of services and other processes running outside the Guest account user-space?

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• Creating immutable objects from javabean

  - by redzedi

  Hi All, I am involved in this project where we are building on good bit of legacy code. I have a particular situation about one big java bean object which has to be transferred over wire. So my first thought was to make it immutable and serializable to do the trick .At this point I am faced with a few difficult choices :- 1 Ideally I want some way to automatically generate an immutable, serializable version of this class. I dont have the scope to refactor or alter this class in any way and i would really really hate to have to copy paste the class with a different name ?? 2 Assuming that i gave up on 1 i.e i actually chose to duplicate code of the HUGE javabean class , i still will be in the unsavoury situation of having to write a constructor with some 20-25 parameters to make this class immutable. what is a better way to make a class immutable other than constructor injection ?? Thanks and Regards,

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• How can the generic method called know the type of the generic return?

  - by Paulo Guedes

  I couldn't find a duplicate for this question for Java, although there are a lot of them for C#. I have this method: public <T> T getSomething() { // } According to the type of T, I will have a different return. For example: String a = getSomething(); int b = getSomething(); For a, my method will return a specific String. For b, it will return a specific int. And so on. It seems that this can be done with typeof() in C#. How can I achieve it in Java?

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• Inner shadow issue in Illustrator CS5

  - by Joe Conlin

  I gave a comp to my client that I did in Photoshop. I used an inner shadow but now have realized the in Illustrator CS5 I have no such "easy" filter. I have spent 2 days seaching the web, trying tutorials, etc. to no avail. Every tutorial seems to use text but I am not using text. Anyone that can answer I would forever been in debt... :) This is the image with the inner shadow inside the stripes that I am needing to duplicate. Thanks!

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• How to dynamically add a Javascript function (and invoke)

  - by whitey

  Based on a click event on the page, via ajax I fetch a block of html and script, I am able to take the script element and append it to the head element, however WebKit based browsers are not treating it as script (ie. I cannot invoke a function declared in the appended script). Using the Chrome Developer Tools I can see that my script node is indeed there, but it shows up differently then a script block that is not added dynamically, a non-dynamic script has a text child element and I cannot figure out a way to duplicate this for the dynamic script. Any ideas or better ways to be doing this? The driving force is there is potentially a lot of html and script that would never be needed unless a user clicks on a particular tab, in which case the relevant content (and script) would be loaded. Thanks!

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• Insert data into table effeciently, postgresql

  - by Rowan_Gaffney

  I am new to postgresql (and databases in general) and was hoping to get some pointers on improving the efficiency of the following statement. I am inserting data from one table to another, and do not want to insert duplicate values. I have a rid (unique identifier in each table) that are indexed and are Primary Keys. I am currently using the following statement: Insert INTO table1 SELECT * FROM table2 WHERE rid NOT IN (SELECT rid FROM table1). As of now the table one is 200,000 records, table2 is 20,000 records. Table1 is going to keep growing (probably to around 2,000,000) and table2 will stay around 20,000 records. As of now the statement takes about 15 minutes to run. I am concerned that as Table1 grows this is going to take way to long. Any suggestions?

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