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• i18n Spring MVC

  - by Enrique

  Hello. I want to use SessionLocaleResolver to get the locale from user session. The documentation says this: "Another option of resolving locales is by SessionLocaleResolver. It resolves locales by inspecting a predefined attribute in a user’s session. If the session attribute doesn’t exist, this locale resolver will determine the default locale from the accept-language HTTP header." But it does not say which attribute do I have to put in session. Y tried saving in session an attribute "lang" with value "en" but it did not work. Anybody knows which attribute do I have to save in session (key,value)?

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• SQL Average Data Based on Distance

  - by jsmith

  I'm pretty new to SQL. I have a database with records based on road/milepoints. My goal is to get an average value every 52.8 ft along the road. My related table has data every 15 ft, this table of course has a foreign key relating it to the primary table. If I wanted to pull out the average value every 52.8 ft, along a given milepost, how would I go about this? Example Data: RecID Begin_MP End_MP 100 0 0.56 RecID MP Value1 Value2 100 0 159 127.7 100 0.003 95.3 115.3 100 0.006 82.3 107 100 0.009 56.5 74.5 100 0.011 58.1 89.1 100 0.014 95.2 78.8 100 0.017 108.9 242.5 100 0.02 71.8 73.3 100 0.023 84.1 80.2 100 0.026 65.5 66.1 100 0.028 122 135.8 100 0.031 99.9 230.7 100 0.034 95.7 111.5 100 0.037 127.3 74.3 100 0.04 140.7 543.1 The first Data is an example of a Road. The second subset of data are the values I need to query out every 52.8 ft. Thank you

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• problem with iterate over java.util.Map using "JSF" OR JSTL TAGS

  - by New-To-Java

  I'm using Richfaces jsf and I want to iterate over an Map<Object,Object>. I see many examples on sun forums and other sites but in my case it doesn't work ! here is my xhtml code : <c:forEach items="#{order.customOptions}" var="option"> <h:outputText value="this text does not print"/> <h:outputText value="#{option.value.name}" /> <h:outputText value="#{option.value.key}" /> </c:forEach> and the "order" object is of type "Order". "customOptios" is of type Map<CustomOption,CustomOptionValue> and when I create an javascript alert on to print '#{order.customeOptions}' it's content is true. but it's not even enter in c:forEach loop. please heeeeelp me :(

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• Silverlight MEF Embedded Resources

  - by Fastidious

  I have two different Silverlight UserControls imported with MEF from two different xaps. The UserControls are simply an Image on a Canvas. Both UserControls have the image marked as 'Resource'. The images are different but their names are the same (key point). I'm not quite sure what's going on behind the scenes of the MEF import but both images seem to end up in the same AppDomain. After the composition when I stick the UserControls on a Canvas, each is an instance of the class it should be, but they both show the same image. Obviously if the image file names are unique across all xaps I import I have no problem but I don't like that solution. Is there a better one?

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• [MYSQL] Select users who own both a dog and a cat

  - by matte

  Hi, I have this sample table: CREATE TABLE `dummy` ( `id` int(11) NOT NULL AUTO_INCREMENT, `userId` int(11) NOT NULL, `pet` varchar(50) NOT NULL, PRIMARY KEY (`id`) ) ENGINE=MyISAM DEFAULT CHARSET=latin1 AUTO_INCREMENT=7 ; INSERT INTO `dummy` (`id`, `userId`, `pet`) VALUES(1, 1, 'dog'); INSERT INTO `dummy` (`id`, `userId`, `pet`) VALUES(2, 1, 'cat'); INSERT INTO `dummy` (`id`, `userId`, `pet`) VALUES(3, 2, 'dog'); INSERT INTO `dummy` (`id`, `userId`, `pet`) VALUES(4, 2, 'cat'); INSERT INTO `dummy` (`id`, `userId`, `pet`) VALUES(5, 3, 'cat'); INSERT INTO `dummy` (`id`, `userId`, `pet`) VALUES(6, 4, 'dog'); How can I write the statements below in mysql: Retrieve all users who own both a dog and a cat Retrieve all users who own a dog or a cat Retrieve all users who own only a cat Retrieve all users who doesn't own a cat Thanks!

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• On Windows XP, programmatically set Pagefile to "No Paging File" on single c: drive

  - by NBPC77

  I'm trying to write a C#/.NET application that optimizes the hard drives for our XP workstations Set pagefile to "No paging file" Reboot Run a defrag utility to optimize the data and apps Create a contiguous page file Reboot, run pagedefrag from Sysinternals I'm really struggling with #1. I delete the following key: SYSTEM\CurrentControlSet\Control\Session Manager\Memory Management\PagingFiles Upon reboot, the System Control Panel shows "No page file", but c:\pagefile.sys still exists and its in use by the SYSTEM process so I can't delete it and I can't optimize HD. I tried using PendingFileRenamingOperations and that bombs out too. I tried using WMI: Win32_PageFileSetting, but that only lets you set sizes (not zero--defaults to 2MB). Of course, if I do the manual steps outlined above, it works. I think I need an API call to make this happen.

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• Flex datagrid multiple rows single file

  - by Vish

  Hi, I have a flex datagrid with 3 columns. The first column contains the image name(unique key). The other two columns have username and size details. I want to split the username into lastname, firstname, address and some other stuff. Can we have multiple rows in the grid for one image? Tried multi-line, it works but we need to keep adding spaces and its cumbersome. Since each row in the flex datagrid is represented by one index in the XMLList which is enumerated, is there a way to have more than one row assigned to one image and shown in the grid? something like this.. Thanks, Vish.

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• Keyboard in HTML text-input disappear when WebView call 'loadUrl' again

  - by Jr.

  Hi there, I use WebView for my Androind App. I got a problem and request a solution for help. There is a textfield in the HTML page. When it gets 'focus' and then I call mWebView.setFocusableInTouchMode(true); in Java code so that the Android soft-keyboard will pop-up to let me key in. The problem is I need using multi-thread for some processes in Java and call mWebView.loadUrl(strJSCall); as callback to execute JavaScript function, but the keyboard gets hidden! The way I try is to force the keyboard to show again. But how can the keyboard always show when 'loadUrl' is called? Dose anyone meet the same issue and solve it already? Sincerely, Jr.

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• AES Encryption. From Python (pyCrypto) to .NET

  - by Why

  I am currently trying to port a legacy Python app over to .NET which contains AES encrpytion using from what I can tell pyCrpyto. I have very limited Python and Crypto experience. The code uses the snippet from the following page. http://www.djangosnippets.org/snippets/1095/ So far I believe I have managed to work out that it that it calls Crypto.Cipher with AES and the first 32 character of our secret key as the password, but no mode or IV. It also puts a prefix on the encrpyed text when it is added to database. What I can't work out is how I can decrypt the existing ecrypted database records in .NET. I have been looking at RijndaelManaged but it requires an IV and can't see any reference to one in python. Can anyone point me in the dirrection to what method could be used in .NET to get the desired result.

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• Jquery Live Validation

  - by sico87

  Hello Everyone, After having a search around I could not find exactly what I want, I am looking to validate a form client side using the Jquery library and some form of validation plugin. I was hoping that some one could advise me on whether there are any validation plugins out there that do not use generic error messages, as my form is laid out with no room for these errors, and I also I want the validator to to for correct content as well. Basically I want to be able to check the field on each key press and blur and if the fields validates for it to gain a green border, and if it does not validate for it to gain a red border, any one know of a plugin that can do this? Thanks sico87

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• Delphi Search Edit Component

  - by Reber

  Hi, I need a delphi component for Delphi 2007 win32 that have features like Google search text box. ** While User writing search key it should fill/refresh the list with values, and user can select one of them. **User can go up and down list and can select one of them. **List should contain codes and text pair, so user can select text and I can get code for database operations. (Google can highlight the search text in List but I think it is not possible with Delphi 2007, so it is not excepted.) I tried Dev Express TcxMRUEdit, however it doesn't meet my needs

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• JTable filled with database data is not being updated when columns are reordered.

  - by marionmaiden

  I have a JTable filled with data of a table of my database (so I used ResultSetTableModel) and using TableRowSorter to sort the rows, as I click in one column of the JTable. The data is displayed in the jTable without problems; But when I sort the JTable by some column table (for example, sorting it by the primary key value), and edit some cell from the sorted jTable, the value changed is the old cell that were in that position before the ordenation of the column. For example: Suppose I have a table with 2 columns - name and age. My table has the following data: c 1 b 2 a 3 when I order i by name in the JTable, it becomes like this a 3 b 2 c 1 if I edit the value "1", after the edition, the table becomes like this a 1 b 2 c 1 It seems that the positions are not being updated in the JTable, and the values are edited considering their original positions.

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• Sorting nested hash in ruby

  - by Rabbott

  Provided the following ruby hash: { cat: { 1: 2, 2: 10, 3: 11, 4: 1 }, wings: { 1: 3, 2: 5, 3: 7, 4: 7 }, grimace: { 1: 4, 2: 5, 3: 5, 4: 1 }, stubborn: { 1: 5, 2: 3, 3: 7, 4: 5 } } How can I sort the hash by the sum of 'leaf' excluding "4", for instance the value to compare for "cat" would be (2 + 10 + 11) = 23, the value for "wings" would be (3 + 5 + 7) = 15 so if I was comparing just those two they would be in the correct order, highest sum on top. It is safe to assume that it will ALWAYS be {1: value, 2: value, 3: value, 4: value} as those are keys for constants I have defined. It is also safe to assume that I will only ever want to exclude the key "4", and always use the keys "1", "2", and "3"

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• Emacs shell output buffer height

  - by jimbo

  Hi , i have the following in my .emacs file(thanks to a SOer nikwin), which evaluates the current buffer content and displays the output in another buffer. (defun shell-compile () (interactive) (save-buffer) (shell-command (concat "python " (buffer-file-name)))) (add-hook 'python-mode-hook (lambda () (local-set-key (kbd "\C-c\C-c") 'shell-compile))) The problem is that the output window takes half the emacs screen. Is there any way to set the output windows's height to something smaller. I googled for 30mins or so and could not find anything that worked. Thanks in advance.

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• Linq to sql Error "Data at the root level is invalid " for nullable xml column

  - by Mukesh

  I have Created a table like CREATE TABLE [dbo].[tab1]( [Id] [int] NOT NULL, [Name] [varchar](100) NOT NULL, [Meta] [xml] NULL, CONSTRAINT [PK_tab1] PRIMARY KEY CLUSTERED ( [Id] ASC )WITH (PAD_INDEX = OFF, STATISTICS_NORECOMPUTE = OFF, IGNORE_DUP_KEY = OFF, ALLOW_ROW_LOCKS = ON, ALLOW_PAGE_LOCKS = ON) ON [PRIMARY] ) ON [PRIMARY] TEXTIMAGE_ON [PRIMARY] When I am doing linq to sql query to fetch a data it throw an error "data at the root level is invalid linq". In further investigation I come to know that the meta column is null in that case. In real it is nullable Do I have to remove the nullable and set some blank root node as default or there is some another way to get rid of the error. My linq Query which throws error var obj1= (from obj in dbContext.tab1s where obj.id== 123 select obj).FirstOrDefault<Tab1>();

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• WPF: Is it possible to nest TreeView items with a binding expression?

  - by John Gietzen

  Lets say I have the following data: <XmlDataProvider x:Key="Values"> <x:XData> <folder name="C:"> <folder name="stuff" /> <folder name="things" /> <folder name="windows"> <folder name="system32" /> </folder> </folder> </x:XData> </XmlDataProvider> How can I get that into a treeview? I can't seem to grok hierarchical binding... I know that I can get it in there in C# code, but I wanted to do it with a binding expression.

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• What are appropriate ways to represent relationships between people in a database table?

  - by Emilio

  I've got a table of people - an ID primary key and a name. In my application, people can have 0 or more real-world relationships with other people, so Jack might "work for" Jane and Tom might "replace" Tony and Bob might "be an employee of" Rob and Bob might also "be married to" Mary. What's the best way to represent this in the database? A many to many intersect table? A series of self joins? A relationship table with one row per relationship pair and type, where I insert records for the relationship in both directions?

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• Help need to with MySQL query to join data spanning multiple tables and use data as column names

  - by gurun8

  I need a little help putting together a SQL query that will give me the following resultsets: and The data model looks like this: The tricky part for me is that the columns to the right of the "Product" in the resultset aren't really columns in the database but rather key/value pairs spanned across the data model. Table data is as follows: My apologies in advance for the image heavy question and the image quality. This just seemed like the easiest way to convey the information. It'll probably take someone less time to write the query statement to achieve the results than it did for me to assemble this question. By the way, the "product_option" table image is truncated but it illustrated the general idea of the data structure. The MySQL server version is 5.1.45.

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• Save entity with entity framework

  - by Michel

  Hi, I'm saving entities/records with the EF, but i'm curious if there is another way of doing it. I receive a class from a MVC controller method, so basicly i have all the info: the class's properties, including the primary key. Without EF i would do a Sql update (update table set a=b, c=d where id = 5), but with EF i got no further than this: Get an object with ID of 5 Update the (existing) object with the new object Submitchanges. What bothers me is that i have to get the object from the database first, where i have all the info to do an update statement. Is there another way of doing this?

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• ec2_bundle_vol fails with error LoadError

  - by Koran

  Hi, I am a newbie in amazon ec2 setup. I have now setup a machine to my taste - and I now want to bundle it. I am running the following command from the launched instance - root@domU-21-34-67-26-ED-Z4:~# ec2-bundle-vol -r i386 -d /mnt \ -p ACT-VOL -u 8940-1355-4155 -k /tmp/pk-key.pem \ -c /tmp/cert.pem -s 10240 \ -e /mnt,/root/.ssh,/home/ubuntu/.ssh ruby: No such file or directory -- /home/ubuntu/ec2tools/ec2-api-tools-1.3-46266/lib/ec2/amitools/bundlevol.rb (LoadError) The ruby version is 1.8.7. I searched internet and installed libruby1.8-extras etc too, but to no avail. I also tried running it from site_ruby (/usr/local/lib/site_ruby) - but no use. I tried installing 1.8.6 version of ruby, but was unable to find a way to do so too. Any help would be much appreciated. Thanks, K

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• sql server : get default value of a column

  - by luke

  Hello, I execute a select to get the structure of a table. I want to get info about the columns like its name or if it's null or if it's primary key.. I do something like this ....sys.columns c... c.precision, c.scale, c.is_nullable as isnullable, c.default_object_id as columndefault, c.is_computed as iscomputed, but for default value i get the id..something like 454545454 but i want to get the value "xxxx". What is the table to search or what is the function to convert that id to the value. Thanks

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• Generate fixed length hash in python for url parameter

  - by LeRoy

  I am working in python on appengine. I am trying to create what is equivalent to the "v" value in the youtube url's (http://www.youtube.com/watch?v=XhMN0wlITLk) for retrieving specific entities. The datastore auto generates a key but it is way too long (34 digits). I have experimented with hashlib to build my own, but again I get a long string. I would like to keep it to under 11 digits (I am not dealing with a huge number of entities) and letters and numbers are acceptable. It seems like there should be a pretty standard solution. I am probably just missing it.

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• Custom iterator for a class based on two sets

  - by Dan Hook

  I have a class that contains two sets. They both contain the same key type but have different compare operations. I would like to provide an iterator for the class that iterates through the elements of both sets. I want to start with one set, then when I increment an iterator pointing to the last element of the first set, I want to go to the first element of the second set. How do I do this? I would like to preserve the bidirectional iterator semantics of std::set, but if it turns out that implementing a forward iterator is much easier, so be it. I'm willing to use the Boost Iterator library if that would help.

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• Spring - scheduling and pooling runnables of different state (each Runnable instance has different

  - by lisak

  Hi, I can't figure out what to use for scheduling and pooling runnables of different state (each Runnable instance has different state). I could use ScheduledExecutorFactoryBean together with MethodInvokingRunnable to supply arguments. But take a look at the key ScheduledExecutorFactoryBean method, it is designed in a way that all task should start at the beginning. protected void registerTasks(ScheduledExecutorTask[] tasks, ScheduledExecutorService executor) { for (ScheduledExecutorTask task : tasks) { Runnable runnable = getRunnableToSchedule(task); if (task.isOneTimeTask()) { executor.schedule(runnable, task.getDelay(), task.getTimeUnit()); } else { if (task.isFixedRate()) { executor.scheduleAtFixedRate(runnable, task.getDelay(), task.getPeriod(), task.getTimeUnit()); } else { executor.scheduleWithFixedDelay(runnable, task.getDelay(), task.getPeriod(), task.getTimeUnit()); } } } } I can't think of how to setup this scenario with ThreadPoolTaskScheduler. Please help me out here. Thank you EDIT: shortened version is: how to setup task scheduler that would run hundreds of "different instances of Threads (with different state) with 2 seconds interval.

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• Many-to-Many Relationships in MySQL

  - by Kaji

  I've been reading up on foreign keys and joins recently, and have been pleasantly surprised that many of the basic concepts are things I'm already putting into practice. For example, with one project I'm currently working on, I'm organizing word lists, and have a table for the sets, like so: `words` Table `word_id` `headword` `category_id` `categories` Table `category_id` `category_name` Now, generally speaking this would be a one-to-many relationship, with several words being placed under a single category with the foreign key category_id. Let's assume for a moment, however, that a user chooses to add another category to a word, making it many-to-many—Is there a way to set up my words table to handle additional categories for words without creating extra columns like category_2, category_3, etc.?

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