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• Get invalid user input with a Spring typeMismatch error

  - by TimmyJ

  I've implemented a ReloadableResourceBundleMessageSource in my Spring MVC application which I use to display prettier error messages for binding exceptions. The problem I'm having is that, due to a company policy, these errors must be displayed in the following format: [inputData] is not a valid [fieldName]. The field name is accessible by default in my message properties file (as the {0} argument), but I can't figure out a way to display the invalid user input. Is this possible?

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• Most optimal way to convert to date

  - by IMHO

  I have legacy system where all date fields are maintained in YMD format. Example: 20101123 this is date: 11/23/2010 I'm looking for most optimal way to convert from number to date field. Here is what I came up with: declare @ymd int set @ymd = 20101122 select @ymd, convert(datetime, cast(@ymd as varchar(100)), 112) This is pretty good solution but I'm wandering if someone has better way doing it

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• How can I CURL POST a file using file pointer in C++

  - by Ankur Chauhan

  I have a file pointer, such as the following: FILE* f = tmpfile() How do I use libcurl to do a HTTP POST to a URL as a field named F1?

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• jquery - validate characters on keypress?

  - by TwixxyKit

  I have a form text field that I want to allow only numbers and letters in. (i.e., no #$!, etc...) Is there a way to throw up an error and prevent the keypress from actually outputting anything if the user tries to use any character other than numbers and letters? I've been trying to find a plugin, but haven't really found anything that does this...

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• Need help converting Ruby code to php code

  - by newprog

  Yesterday I posted this queston. Today I found the code which I need but written in Ruby. Some parts of code I have understood (I don't know Ruby) but there is one part that I can't. I think people who know ruby and php can help me understand this code. def do_create(image) # Clear any old info in case of a re-submit FIELDS_TO_CLEAR.each { |field| image.send(field+'=', nil) } image.save # Compose request vm_params = Hash.new # Submitting a file in ruby requires opening it and then reading the contents into the post body file = File.open(image.filename_in, "rb") # Populate the parameters and compute the signature # Normally you would do this in a subroutine - for maximum clarity all # parameters are explicitly spelled out here. vm_params["image"] = file # Contents will be read by the multipart object created below vm_params["image_checksum"] = image.image_checksum vm_params["start_job"] = 'vectorize' vm_params["image_type"] = image.image_type if image.image_type != 'none' vm_params["image_complexity"] = image.image_complexity if image.image_complexity != 'none' vm_params["image_num_colors"] = image.image_num_colors if image.image_num_colors != '' vm_params["image_colors"] = image.image_colors if image.image_colors != '' vm_params["expire_at"] = image.expire_at if image.expire_at != '' vm_params["licensee_id"] = DEVELOPER_ID #in php it's like this $vm_params["sequence_number"] = -rand(100000000);????? vm_params["sequence_number"] = Kernel.rand(1000000000) # Use a negative value to force an error when calling the test server vm_params["timestamp"] = Time.new.utc.httpdate string_to_sign = CREATE_URL + # Start out with the URL being called... #vm_params["image"].to_s + # ... don't include the file per se - use the checksum instead vm_params["image_checksum"].to_s + # ... then include all regular parameters vm_params["start_job"].to_s + vm_params["image_type"].to_s + vm_params["image_complexity"].to_s + # (nil.to_s => '', so this is fine for vm_params we don't use) vm_params["image_num_colors"].to_s + vm_params["image_colors"].to_s + vm_params["expire_at"].to_s + vm_params["licensee_id"].to_s + # ... then do all the security parameters vm_params["sequence_number"].to_s + vm_params["timestamp"].to_s vm_params["signature"] = sign(string_to_sign) #no problem # Workaround class for handling multipart posts mp = Multipart::MultipartPost.new query, headers = mp.prepare_query(vm_params) # Handles the file parameter in a special way (see /lib/multipart.rb) file.close # mp has read the contents, we can close the file now response = post_form(URI.parse(CREATE_URL), query, headers) logger.info(response.body) response_hash = ActiveSupport::JSON.decode(response.body) # Decode the JSON response string ##I have understood below def sign(string_to_sign) #logger.info("String to sign: '#{string_to_sign}'") Base64.encode64(HMAC::SHA1.digest(DEVELOPER_KEY, string_to_sign)) end # Within Multipart modul I have this: class MultipartPost BOUNDARY = 'tarsiers-rule0000' HEADER = {"Content-type" => "multipart/form-data, boundary=" + BOUNDARY + " "} def prepare_query (params) fp = [] params.each {|k,v| if v.respond_to?(:read) fp.push(FileParam.new(k, v.path, v.read)) else fp.push(Param.new(k,v)) end } query = fp.collect {|p| "--" + BOUNDARY + "\r\n" + p.to_multipart }.join("") + "--" + BOUNDARY + "--" return query, HEADER end end end Thanks for your help.

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• Django: FloatField or DecimalFied for Currency ?

  - by Hellnar

  I am curious which one would be better fitting as a currency field ? I will do simple operations such as taking difference, the percentage between old and new prices. I plan to keep two digits after the zero (ie 10.50) and majority of the time if these digits are zero, I will be hiding these numbers and display it as "10"

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• JavaFX media player in mobile

  - by cancelledout

  Does anyone have any tutorials in playing videos in javafx applications in mobile? My codes strangely work only in desktop execution. But the official site of JavaFX says it plays in mobile phones. I used their sample code and guess what, it doesn't play on the mobile phone too. Here is the sample code I used: http://javafx.com/docs/articles/media/EmbeddedPlayer.fx.jsp Please help me guys. I'm on a dead-end here. =<

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• How to SUM() from an offset through the end of the table?

  - by keithjgrant

  If SELECT SUM(amount) FROM transactions ORDER BY order LIMIT 0, 50 sums the amount field for the first 50 records in a table, how do a sum all records after the first 50? In other words, I'd like to do something like SELECT SUM(amount) from transactions ORDER BY order LIMIT 50, *, but that doesn't work.

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• what standards i should follow?

  - by moon

  i know it is not a programming related question but pretty much relate to IT field. i have to write a user manual for my product, and i am searching for a standard from last three days but i didn't find any useful information, can anyone guide me what standards exists there for this purpose (User Manual Writing ) , if there are some good suggestions that will also help me! thanx

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• special characters strange behavior

  - by andufo

  Hi, i have this string in my utf-8 mysql DB: "Pruebá de eñes" When i print it like plain text, everything works ok, but if i load that same field inside an input, textarea, etc, it becomes: "Pruebá de eñes" How can i solve this problem? =(

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• Is there any open source AI engine?

  - by Andrei Savu

  I am searching for an open source AI engine implemented in C/C++, ActionScript or Java with no success. Do you know any open source implementation? Update: Thanks for answers! I had no idea how vast the AI field is. I am working on a sample application. I want to add intelligent behavior over a physics engine. I need some sort ai engine designed for games.

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• WPF MVVM View with varying number of objects. How to?

  - by 0xDEAD BEEF

  HI! I want to design view which will contain multiple objects in different locations. For example - it would be great if viewmodel could have field like list of objects (rectangles) and when i change/add members to list, new rectangles appear on view in specified positions. How do i create such view/viewmodel?

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• Help with Query - Access

  - by yae

  Hi I have 4 tables: machines, categories, users and usersMAchines machines is linked to categories and usersMachines. Machines -------- idMachine machine idCat Categories -------- idCat category Users -------- idUser nameUser UsersMachines -------- idUserMachine idUser IdMachine To list machines, filtered for any field of 3 previous table, I have this query: select distinct machines.*,categories.category from( (machines left join UsersMachines on machines.idMachine=UsersMachines.idMachine) left join categories on machines.idcat=categories.idcat) Ok,runs fine. But Using the same query, how I can do to filter the machines that only have linked users ?

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• How to use NSPredicate with Key-Paths (and ALL)?

  - by Konstantin

  Taking example from Apple docs using predicates with Key-Paths NSPredicate *predicate = [NSPredicate predicateWithFormat:@"ANY employees.firstName like 'Matthew'"]; Now, assume the employees has a bool field "isGood". The question: how do I select just those entities, having ALL of employees isGood==TRUE? I tried but failed with following predicates: "!(ANY employees.isGood != TRUE)" "(ALL employees.isGood == TRUE)" // Would be perfect, but throws an exception..

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• How rigid is the max size of a VARCHAR in SQL Server?

  - by thinknow

  i.e. if I create a VARCHAR(50) field, what happens if I try to assign it a value that's 100 characters long? Will SQL Server let me do this? Is it somehow less efficient?

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• how to display fixed dropdown in django admin?

  - by FurtiveFelon

  Hi all, I would like to display priority information in a drop down. Currently i am using a integer field to store the priority, but i would like to display high/medium/low instead of letting user type in a priority. A way to approximate this is to use a Priority database which stores 3 elements, 1:high, 2:medium, 3:low, but it seems like an overkill. Any easier way would be much appreciated! Jason

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• WinForms / .Net interactive world map - how?

  - by FerretallicA

  In a CD collection program, I have each artist's country of origin stored in the main database and want to display a map of the world which: Colour-codes each country depending on the number of CDs by artists in that country Allows clicking on each country to filter a list of CDs to only ones by artists in that country This is a heavily simplified version of what I'm trying to do, but if I can at least get this far the rest should be easy enough to figure out. So far the closest thing I've found to what I'm trying to do is here: http://www.synergetechsolutions.com/blog/analytics-world-map-control Ideally I don't want to be embedding Flash in my program though, and the only other solutions I've found all involve SVG which I haven't managed to get working in practice outside of a web browser control (and I DEFINITELY don't want to be embedding a browser in the forms). Something in pure managed code and either GDI+ or WPF would be preferable. Are there any existing components that would get me started, or can anyone suggest how to approach it from scratch?

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• length of captured packets more than MTU

  - by kumar

  Hi, I m running iperf between two machines (linux) and I can observe the mtu of both the interfaces connected is 1500. I ran tcpdump to capture packets and I observed some packets have "length as 2962"....how come this is possible with mtu as only 1500? Please clarify. Thanks! Note: flags field is set as DF. and proto is TCP

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• MySQL upload CSV file as new table

  - by Brian

  I frequently upload CSV files to a MySQL db. It is very convenient to use LOAD DATA LOCAL INFILE to upload the data, but I can't use this to create the table itself. As of now, the best method I have is to use PHP to get the field titles from the first row of the file and then put together a CREATE table query. Is there a more convenient way to do this?

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• How to use web camera in android emulator to capture a live image?

  - by Kumar

  Hi,As far as i know, Android emulator doesn't have a camera .To capture a live image we have to use web camera.I have seen code in this web site "http://www.tomgibara.com/android/camera-source" to use web camera in android emulator to capture a image but, i don't how to use this code.I am new to this field , can any one help me how to do it. regards, s.kumaran.

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• JdbcTemplate — logging the dataSource connection url

  - by Bernhard V

  Hi, is there a way to log the JdbcTemplate's DataSource connection URL in Java? The field exists in the DataSource, but there ain't a getter to access it. Of course I could read the DataSource properties from the application context xml, but I'd like to do it the other way.

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• Get latlng and draw a polyline between that two latlng

  - by anup sharma

  I have some issue in my code in that first I want to get latlng of my given address/city name from two text boxes after that i converts it to from position's latlng and to position's latlng and at last i want to draw a polyline between these point and markers on both point also, But now i am trying to draw a line between these points. But still not working this code also no any error in console also. code is here for your help. function getRoute(){ var from_text = document.getElementById("travelFrom").value; var to_text = document.getElementById("travelTo").value; if(from_text == ""){ alert("Enter travel from field") document.getElementById("travelFrom").focus(); } else if(to_text == ""){ alert("Enter travel to field"); document.getElementById("travelTo").focus(); } else{ //google.maps.event.addListener(map, "", function (e) { var myLatLng = new google.maps.LatLng(28.6667, 77.2167); var mapOptions = { zoom: 3, center: myLatLng, mapTypeId: google.maps.MapTypeId.TERRAIN }; var map = new google.maps.Map(document.getElementById('map-canvas'), mapOptions); var geocoder = new google.maps.Geocoder(); var address1 = from_text; var address2 = to_text; var from_latlng,to_latlng; //var prepath = path; //if(prepath){ // prepath.setMap(null); //} geocoder.geocode( { 'address': address1}, function(results, status) { if (status == google.maps.GeocoderStatus.OK) { // do something with the geocoded result // alert(results[0].geometry.location); from_latlng = results[0].geometry.location; // from_lat = results[0].geometry.location.latitude; // from_lng = results[0].geometry.location.longitude; // alert(from_latlng); } }); geocoder.geocode( { 'address': address2}, function(results, status) { if (status == google.maps.GeocoderStatus.OK) { // do something with the geocoded result to_latlng = results[0].geometry.location; // to_lat = results[0].geometry.location.latitude; // to_lng = results[0].geometry.location.longitude; // results[0].geometry.location.longitude // alert(to_latlng) } }); setTimeout(function(){ var flightPlanCoordinates = [ new google.maps.LatLng(from_latlng), new google.maps.LatLng(to_latlng) ]; //alert("123") var polyline; polyline = new google.maps.Polyline({ path: flightPlanCoordinates, strokeColor: "#FF0000", strokeOpacity: 1.0, strokeWeight: 2 }); polyline.setMap(map); // assign to global var path // path = polyline; },4000); // }); } }

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• How to make an id auto_increment from where it last left off after a record delete?

  - by Sammy

  This isn't that big of a deal but I was wondering if it can be done. Right now when I insert a new record, the id field which is auto_increment and set as primary key increases it's value by one: id | first_name | last_name ------------------------------ 1 | John | Smith 2 | Jane | Doe But if I delete record 2, the next one I insert is going to have an id of 3. Is there any way to make it have an id of 2 automatically (without having to manually insert it)?

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• validate linqtosql mapping to a model

  - by Coppermill

  I have generated a LinqtoSQL mapping xml file, which I have a valid XSD schema that I check to make sure the XML is correct. Now I want to check that the field type match the Model/Interface for example: checking that the nullable fields are nullable that int are int etc anyone got any ideas if I can do this?

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• Get only latest row, grouped by a column

  - by Cylindric

  I have a large data-set of emails sent and status-codes. ID Recipient Date Status 1 [email protected] 01/01/2010 1 2 [email protected] 02/01/2010 1 3 [email protected] 01/01/2010 1 4 [email protected] 02/01/2010 2 5 [email protected] 03/01/2010 1 6 [email protected] 01/01/2010 1 7 [email protected] 02/01/2010 2 In this example: all emails sent to someone have a status of 1 the middle email (by date) sent to them has a status of 2, but the latest is 1 the last email sent to others has a status of 2 What I need to retrieve is a count of all emails sent to each person, and what the latest status code was. The first part is fairly simple: SELECT Recipient, Count(*) EmailCount FROM Messages GROUP BY Recipient ORDER BY Recipient Which gives me: Recipient EmailCount [email protected] 2 [email protected] 3 [email protected] 2 How can I get the most recent status code too? The end result should be: Recipient EmailCount LastStatus [email protected] 2 1 [email protected] 3 1 [email protected] 2 2 Thanks. (Server is Microsoft SQL Server 2008, query is being run through an OleDbConnection in .Net)

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