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  • How convert a string into a ActiveSupport::TimeWithZone?

    - by Nisanio
    How convert a string into a ActiveSupport::TimeWithZone? My dilemma is this. I need to update a field (called updated_at). The field in mysql is datetime, and the class is ActiveSupport::TimeWithZone. But the dates are strings like "10/17/2008". I used "10/17/2008".to_date (And I intend .to_time and to_datetime), and even if in console the ActiveRecord class save succesfully, the field in the database still is the current date... Thanks in advanced.

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  • Convert tags to html entities

    - by Sarfraz
    Hello, Is it possible to convert html tags to html entities using javascript/jquery using any way possible such as regex or some other way. If yes, then how? Example: <div> should be converted to &lt;div&gt;

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  • Convert PPT to PNG via python

    - by uswaretech
    I want to convert PPT to png, or other image formats using Python. This question has been asked on SO, but essentially recommends running OpenOffice in headless X server, which was an absolute pain last time I used it. (Mostly due to hard to replicate bugs due to OO crashing.) Is there any other way, (Hopefully using Linux CLI utilities only, and pure Python above them?)

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  • Why do the overloads of String.Format exist?

    - by GiddyUpHorsey
    I was using Reflector to look at the implementation of String.Format and had always been under the impression that the overloads of String.Format that took 1, 2 & 3 arguments were optimized versions of the method that takes an object array. However, what I found was that internally they create an object array and then call a method that takes an object array. 1 arg public static string Format(string format, object arg0) { if (format == null) { throw new ArgumentNullException("format"); } return Format(null, format, new object[] { arg0 }); } 2 args public static string Format(string format, object arg0, object arg1) { if (format == null) { throw new ArgumentNullException("format"); } return Format(null, format, new object[] { arg0, arg1 }); } 3 args public static string Format(string format, object arg0, object arg1, object arg2) { if (format == null) { throw new ArgumentNullException("format"); } return Format(null, format, new object[] { arg0, arg1, arg2 }); } Object array public static string Format(string format, params object[] args) { if ((format == null) || (args == null)) { throw new ArgumentNullException((format == null) ? "format" : "args"); } return Format(null, format, args); } Internally they all end up using the same code and so using the 1, 2 & 3 argument versions are no faster than the object array version. So my question is - why do they exist? When you use the object array version with a comma separated list of values, the compiler automatically converts the arguments into an object array because of the params/ParamArray keyword which is essentially what the 1, 2 & 3 versions do, so they seem redundant. Why did the BCL designers add these overloads?

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  • Convert array of hashes to array of structs?

    - by keruilin
    Let's say I have two objects: User and Race. User has two attributes: first_name, last_name. And Race has three attributes: course, start_time, end_time. Now let's say I create an array of hashes like this: user_races = races.map{ |race| {:user = race.user, :race = race} } How do I then convert user_races into an array of structs, keeping in mind that I want to be able to access the attributes of both user and race from the struct element?

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  • Convert video format to Flash Video automatically

    - by Jessica Boxer
    I need to allow web site users to upload videos to my web site in various common formats. From these I need to convert them to Flash video, and also limit their lengths and size. I need to do this automatically as part of the web site processing. Is there some simple tool that will allow me to do this? If not, can you point me in a direction that might help me out. Thanks.

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  • convert to quewety keybord

    - by lamisse
    hello I'm programming in java using frensh local machine (azerty keybord) I like to type a a text with certain character ("test: hello") but when I launch the test, only "test" is displayed is there methods java allowing to convert":" to the equivalent in quewerty ? thanks

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  • Convert URLs into HTML links using sed?

    - by Mike Crittenden
    I'm wondering if it's possible (recommended might be the better word) to use sed to convert URLs into HTML hyperlinks in a document. Therefore, it would look for things like: http://something.com And replace them with <a href="http://something.com">http://something.com</a> Any thoughts? Could the same also be done for email addresses?

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  • 'abstract class' versus 'normal class' for a reusable library

    - by Greg
    I'm developing a reusable library and have been creating abstract classes, so the client can then extend from these. QUESTION: Is there any reason in fact I should use an abstract class here as opposed to just a normal class? Note - Have already decided I do not want to use interfaces as I want to include actual default methods in my library so the client using it doesn't have to write the code.

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  • getAudioInputStream can not convert [stereo, 4 bytes/frame] stream to [mono, 2 bytes/frame]

    - by brian_d
    Hello. I am using javasound and have an AudioInputStream of format PCM_SIGNED 8000.0 Hz, 16 bit, stereo, 4 bytes/frame, little-endian Using AudioSystem.getAudioInputStream(target_format, original_stream) produces an 'IllegalArgumentException: Unsupported Conversion' when the target_format is PCM_SIGNED 8000.0 Hz, 16 bit, mono, 2 bytes/frame, little-endian Is it possible to convert this stream manually after every read() call? And if yes, how? In general, how can you compare two formats and tell if a conversion is possible?

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  • UNIX script to convert queries

    - by Harish
    I need a UNIX shell script to convert my queries from Java compatible to Oracle compatible format. ie. I have all the java compatible queries: java: SELECT a, b, c, d, e, f,g "+// "from test where year(timestamp)=year(today) and month(timestamp)=month(today) " +// "and day(timestamp)=2 and h='" + "W" + "'" Oracle SELECT a, b, c,d,e,f,g from test where year(timestamp)=year(today) and month(timestamp)=month(today) and day(timestamp)=2 and h='W' Is it possible using sed or awk?

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  • Convert JSON structure

    - by Scobal
    I have a set of data in one JSON structure: [[task1, 10, 99], [task2, 10, 99], [task3, 10, 99], [task1, 11, 99], [task2, 11, 99], [task3, 11, 99]] and need to convert it to another JSON structure: [{ label: "task1", data: [[10, 99], [11, 99]] }, { label: "task2", data: [[10, 99], [11, 99]] }, { label: "task3", data: [[10, 99], [11, 99]] }] What's the best way to do this with javascript/java?

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  • PHP convert external relative path to absolute path

    - by CMC
    Hello, I am trying to figure out how to convert an "external relative path" to an absolute one: I'd really like a function that will do the following: $path = "/search?q=query"; $host = "http://google.com"; $abspath = reltoabs($host, $path); And have $abspath equal to "http://google.com/search?q=query" The problem is that it is not guaranteed to be in that format, and it could already be absolute, or be pointing to a different host entirely, and I'm not quite sure how to approach this. Thanks.

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  • psql : Convert the time to seconds

    - by pavun_cool
    Hi all. I have time value 04:30:25 , I want to convert this to seconds . Is there any dedicated function to do this...? I know that we can extract hours ,minutes, seconds then we can calculate the second . SELECT extract ( hour from t ) * 60*60 + extract ( minutes from t ) * 60 + extract ( seconds from t ) from test ; But I want some other way... Thanks

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  • Mysql data convert

    - by Sergio
    Is it possible to do DATE_SUB( ".$date." , INTERVAL 100 DAY ) if the type of the column where the date is stored is varchar(255) or I need to convert that column to "DATE" type?

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  • Convert json data to javascript array - in multi-dimensional sense

    - by AW-GWTF899
    I have a json array say { "People": { "Person": [ {"FirstName": "John", "LastName": "Smith"} {"FirstName": "Joe", "LastName": "Bloggs"} {"FirstName": "Wendy", "LastName": "Deng"} ] } } And I want to convert this into a javascript array (something like this) var persons = [ ["FirstName", "John", "LastName", "Smith"], ["FirstName", "Joe", "LastName", "Bloggs"], ["FirstName", "Wendy", "LastName": "Deng"] ]; How do I accomplish this? Hope my question makes sense and I realise the javascript array initialization may not be the correct way to put it. Thanks.

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  • Convert Pen to IntPtr

    - by Bevin
    Is there a simple way to convert a System.Drawing.Pen into its unmanaged counterpart? Like, if you had a Pen like this: Pen p = new Pen(Color.Blue, 1f); IntPtr ptr = p.ToPtr(); I know this code doesn't work, but is there a way to do it similarly?

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  • Convert XML to Java DTO and back in GWT

    - by RB
    Looking for best approach to convert Java DTO to XML and back while using GWT. I saw GWT has XMLParser in its client package which is a DOM Parser. I'm looking for more like a JAXB kind of plugin feature that I can use with GWT.

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