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  • MYSQL - datetime to seconds

    - by Mike
    Hello, I wasn't able to find out (googling, reading mysql reference manual) how to get value of DATETIME in seconds in MySQL. I dont mean to extract seconds from datetime, but to convert it into seconds. Thanx

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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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  • Eager loading vs. many queries with PHP, SQLite

    - by Mike
    I have an application that has an n+1 query problem, but when I implemented a way to load the data eagerly, I found absolutely no performance gain. I do use an identity map, so objects are only created once. Here's a benchmark of ~3000 objects. first query + first object creation: 0.00636100769043 sec. memory usage: 190008 bytes iterate through all objects (queries + objects creation): 1.98003697395 sec. memory usage: 7717116 bytes And here's one when I use eager loading. query: 0.0881109237671 sec. memory usage: 6948004 bytes object creation: 1.91053009033 sec. memory usage: 12650368 bytes iterate through all objects: 1.96605396271 sec. memory usage: 12686836 bytes So my questions are Is SQLite just magically lightning fast when it comes to small queries? (I'm used to working with MySQL.) Does this just seem wrong to anyone? Shouldn't eager loading have given much better performance?

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  • Ruby on Rails / PostgreSQL - Library not Loaded error when starting server- libq.5.dylib

    - by Mike McCoy
    I have app that is running Ruby 1.9.2, Rails 3, and postgreSQL 8.3. It was originally setup and working with postgreSQL 9.1, but I uninstalled 9.1 and installed and changed to 8.3 insure compatibility on a Heroku shared database setup. It was running ok, but it's not now Now, when working on this app, when I run a database upgrade I get this error: dlopen(/Users/michaeljmccoy/.rvm/gems/ruby-1.9.2-p290/gems/pg-0.12.2/lib/pg_ext.bundle, 9): Library not loaded: libpq.5.dylib Referenced from: /Users/michaeljmccoy/.rvm/gems/ruby-1.9.2-p290/gems/pg-0.12.2/lib/pg_ext.bundle Reason: no suitable image found. Did find: /usr/lib/libpq.5.dylib: no matching architecture in universal wrapper - /Users/michaeljmccoy/.rvm/gems/ruby-1.9.2-p290/gems/pg-0.12.2/lib/pg_ext.bundle And when I try to run the server I get this error message: /Users/michaeljmccoy/.rvm/gems/ruby-1.9.2-p290/gems/pg-0.12.2/lib/pg.rb:4:in `require': dlopen(/Users/michaeljmccoy/.rvm/gems/ruby-1.9.2-p290/gems/pg-0.12.2/lib/pg_ext.bundle, 9): Library not loaded: libpq.5.dylib (LoadError) Referenced from: /Users/michaeljmccoy/.rvm/gems/ruby-1.9.2-p290/gems/pg-0.12.2/lib/pg_ext.bundle Reason: no suitable image found. Did find: /usr/lib/libpq.5.dylib: no matching architecture in universal wrapper - /Users/michaeljmccoy/.rvm/gems/ruby-1.9.2-p290/gems/pg-0.12.2/lib/pg_ext.bundle from /Users/michaeljmccoy/.rvm/gems/ruby-1.9.2-p290/gems/pg-0.12.2/lib/pg.rb:4:in `<top (required)>' from /Users/michaeljmccoy/.rvm/gems/ruby-1.9.2-p290@global/gems/bundler-1.0.21/lib/bundler/runtime.rb:68:in `require' from /Users/michaeljmccoy/.rvm/gems/ruby-1.9.2-p290@global/gems/bundler-1.0.21/lib/bundler/runtime.rb:68:in `block (2 levels) in require' from /Users/michaeljmccoy/.rvm/gems/ruby-1.9.2-p290@global/gems/bundler-1.0.21/lib/bundler/runtime.rb:66:in `each' from /Users/michaeljmccoy/.rvm/gems/ruby-1.9.2-p290@global/gems/bundler-1.0.21/lib/bundler/runtime.rb:66:in `block in require' from /Users/michaeljmccoy/.rvm/gems/ruby-1.9.2-p290@global/gems/bundler-1.0.21/lib/bundler/runtime.rb:55:in `each' from /Users/michaeljmccoy/.rvm/gems/ruby-1.9.2-p290@global/gems/bundler-1.0.21/lib/bundler/runtime.rb:55:in `require' from /Users/michaeljmccoy/.rvm/gems/ruby-1.9.2-p290@global/gems/bundler-1.0.21/lib/bundler.rb:122:in `require' from /Users/michaeljmccoy/www/mikemccoy/config/application.rb:7:in `<top (required)>' from /Users/michaeljmccoy/.rvm/gems/ruby-1.9.2-p290/gems/railties-3.2.0.rc2/lib/rails/commands.rb:53:in `require' from /Users/michaeljmccoy/.rvm/gems/ruby-1.9.2-p290/gems/railties-3.2.0.rc2/lib/rails/commands.rb:53:in `block in <top (required)>' from /Users/michaeljmccoy/.rvm/gems/ruby-1.9.2-p290/gems/railties-3.2.0.rc2/lib/rails/commands.rb:50:in `tap' from /Users/michaeljmccoy/.rvm/gems/ruby-1.9.2-p290/gems/railties-3.2.0.rc2/lib/rails/commands.rb:50:in `<top (required)>' from script/rails:6:in `require' from script/rails:6:in `<main>' I know they are very similar errors and probably has to do with a missing path. However, when I add the path to my .profile file and restart the terminal window, I get the same errors.

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  • Skinning AIR application window

    - by Mike
    Hi, I'm using mx:WindowedApplication, I'm wondering how I can skin the title bar and close/minimize button for the window. I can see application like Pandora One is using it and setting transparency. Any pointer to a doc? Thanks,

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  • NSTextView's adjustScroll method

    - by Mike
    I'm trying to implement typewriter scrolling in my Cocoa text editor, keeping the insertion point centered vertically in its scrollview. Toward this end, I have subclassed NSClipView to provide a scrollToPointWithoutConstraint method, which scrolls the document to a specified point without calling constrainScrollPoint. This is necessary because for short documents the insertion point can't be centered unless we scroll beyond the document's bounds. This seems reasonably straightforward so far and does what I want. The problem comes in when I try to scroll using the scroll bars. If I'm scrolled to the end of the document, such that part of the scroll view contains an area outside the document's bounds, trying to scroll up by a small increment causes the scroll view to jump, immediately clamping to the document's actual bounds. I gather that I might need to subclass NSTextView and override the adjustScroll method; this is where my actual question begins. The proposedVisibleRect that is passed to adjustScroll already has its dimensions adjusted so that they lie within the document's actual bounds. Is there a way that I can change the value of proposedVisibleRect before adjustScroll is called? Alternatively, am I going about this entirely wrong? Any suggestions would be greatly appreciated at this point.

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  • iphlpapi / ifdef.h

    - by Mike D
    I'm trying to use iphlpapi (GetAdapterInfo) and am having trouble compiling the code. I have iphlpapi.h from SDK 7 and have added the appropriate path to the include files in visual studio. I get the following error... c:\program files\microsoft sdks\windows\v7.0\include\ifdef.h(154) : error C2146: syntax error : missing ';' before identifier 'NET_IFTYPE' The lines in ifdef where this occurs are shown below. typedef NET_LUID IF_LUID, *PIF_LUID; typedef ULONG NET_IFINDEX, *PNET_IFINDEX; // Interface Index (ifIndex) typedef UINT16 NET_IFTYPE, *PNET_IFTYPE; // Interface Type (IANA ifType)

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  • R: convert data.frame columns from factors to characters

    - by Mike Dewar
    Hi, I have a data frame. Let's call him bob: > head(bob) phenotype exclusion GSM399350 3- 4- 8- 25- 44+ 11b- 11c- 19- NK1.1- Gr1- TER119- GSM399351 3- 4- 8- 25- 44+ 11b- 11c- 19- NK1.1- Gr1- TER119- GSM399352 3- 4- 8- 25- 44+ 11b- 11c- 19- NK1.1- Gr1- TER119- GSM399353 3- 4- 8- 25+ 44+ 11b- 11c- 19- NK1.1- Gr1- TER119- GSM399354 3- 4- 8- 25+ 44+ 11b- 11c- 19- NK1.1- Gr1- TER119- GSM399355 3- 4- 8- 25+ 44+ 11b- 11c- 19- NK1.1- Gr1- TER119- I'd like to concatenate the rows of this data frame (this will be another question). But look: > class(bob$phenotype) [1] "factor" Bob's columns are factors. So, for example: > as.character(head(bob)) [1] "c(3, 3, 3, 6, 6, 6)" "c(3, 3, 3, 3, 3, 3)" [3] "c(29, 29, 29, 30, 30, 30)" I don't begin to understand this, but I guess these are indices into the levels of the factors of the columns (of the court of king caractacus) of bob? Not what I need. Strangely I can go through the columns of bob by hand, and do bob$phenotype <- as.character(bob$phenotype) which works fine. And, after some typing, I can get a data.frame whose columns are characters rather than factors. So my question is: how can I do this automatically? How do I convert a data.frame with factor columns into a data.frame with character columns without having to manually go through each column? Bonus question: why does the manual approach work?

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  • Strange ng-model behavior inside ng-repeat

    - by Mike Fisher
    I'm trying to build up a complex post request to run a report in my Angular app. I have a list of inputs all dynamically generated via an ng-repeat a simple version of my html looks like this. <div ng-repeat="filter in lists.filters"> <input type="checkbox" ng-model="report.options.filters[filter.value]['type']/> <input type="text" ng-model="report.options.filters[filter.value]['values']/> </div> ng-repeat is looping over this array [ {name: 'Advertisers', value: 'advertisers'}, {name: 'Sizes', value: 'sizes'}, {name: 'Campaign IDs', value: 'campaigns'}, {name: 'Creative IDs', value: 'creatives'}, {name: 'Publishers', value: 'publishers'}, {name: 'Placement IDs', value: 'placements'}, {name: 'Seller Types', value: 'seller_types'}, {name: 'Impression Types', value: 'impression_types'}, {name: 'Bid Types', value: 'bid_types'}, {name: 'Seller Members', value: 'seller_members'}, {name: 'Buyer Members', value: 'buyer_members'}, {name: 'Insertion Order Ids', value: 'insertion_orders'}, {name: 'Countries', value: 'countries'}, {name: 'Site Ids', value: 'sites'}, {name: 'Sources', value: 'sources'} ]; The JSON I'm sending back needs to be structured like this: "filters": { "state": "all", "campaigns": {type:"include", values":[1,2]}, "creatives": {type:"exclude","values":[1,2]}, "publishers": {"values":[1,2]}, "placements": {type:"exclude",values":[1,2]}, "advertisers": {"values":[1,2]}, "sizes": {"values":[1,2]}, "countries": {"values":[1,2]}, "insertion_orders": {"values":[1,2]}, "sites": {"values":[1,2]}, "bid_types": {"values":[1,2]}, "seller_types": {"values":[1,2]}, "impression_types": {"values":[1,2]}, "seller_members": {"values":[1,2]}, "buyer_members": {"values":[1,2]}, "sources": {"values":[1,2]} } When I do this Angular throws an error: 'Cannot set property 'values' of undefined' and 'Cannot set property 'type' of undefined' Yet if I do this (inside ng-repeat) <input type="text" ng-model="report.options.filters[filter.value]/> Or this outside of ng-repeat <input type="text" ng-model="report.options.filters[filter.value]['values']/> No errors are thrown and everything works fine. I'm positive that filter.value is defined and available on the scope even though Angular thinks it's not for some reason. I'm not quite sure what I'm doing wrong. Any help is much appreciated.

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  • Virtual Earth Shape Rendering Performance

    - by Mike
    I am overlaying a transparent image on my VEMap control by rendering it as a single VEShape. The shape changes sizes dynamically depeding on the zoom level of my map and can be as large as 4000*4000px. In older browsers such as IE6 and early versions of Firefox 2.x, map control performance degrades rapidly when my shape gets larger than 1500*1500px. The mouse pointer moves slowly and the map responds very slowly to events. I don't see this issue at all in newer browsers (IE7+). Are there any workarounds to boost performance of rendering a large shape for IE6 users?

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  • cocoa - converting a double to string

    - by Mike
    I have a double number and I would like to convert it to string. The number is, for example, something like 24.043333332154465777... but if I convert it to string using something like NSString *myString = [NSString stringWithFormat:@"%f", myDouble]; The string is just 24.043333 how do I get a full string the corresponds to the whole double number? What other methods do I have to convert this?

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  • JavaScript: Doing some stuff right before the user exits the page

    - by Mike
    I have seen some questions here regarding what I want to achieve and have based what I have so far on those answer. But there is a slight misbehavior that is still irritating me. What I have is sort of a recovery feature. Whenever you are typing text, the client sends a sync request to the server every 45 seconds. It does 2 things. First, it extends the lease the client has on the record (only one person may edit at one time) for another 60 seconds. Second, it sends the text typed so far to the server in case the server crashes, internet connection fails, etc. In that case, the next time the user enters our application, the user is notified that something has gone wrong and that some text was recovered. Think of Microsoft or OpenOffice recovery whenever they crash! Of course, if the user leaves the page willingly, the user does not need to be notified and as a result, the recovery is deleted. I do that final request via a beforeunload event. Everything went fine until I was asked to make a final adjustment... The same behavior you have here at stack overflow when you exit the editor... a confirm dialogue. This works so far, BUT, the confirm dialogue is shown twice. Here is the code. The event if (local.sync.autosave_textelement) { window.onbeforeunload = exitConfirm; } The function function exitConfirm() { var local = Core; if (confirm('blub?')) { local.sync.autosave_destroy = true; sync(false); return true; } else { return false; } }; Some problem irrelevant clarifications: Core is a global Object that contains a lot of variables that are used everywhere. sync makes an ajax request. The values are based on the values that the Core.sync object contains. The parameter determines if the call should be async (default) or sync.

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  • Modifying documents in memory in yaml-cpp

    - by Mike Mueller
    I want to read a YML document, filter it by modifying some nodes in memory, and then spit it back out with an emitter. The problem is that YAML::Node appears to be designed to be read-only. Is there a way to replace a node's value (with a scalar in this case) that I'm missing?

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  • Best way to do powerOf(int x, int n)?

    - by Mike
    So given x, and power, n, solve for X^n. There's the easy way that's O(n)... I can get it down to O(n/2), by doing numSquares = n/2; numOnes = n%2; return (numSquares * x * x + numOnes * x); Now there's a log(n) solution, does anyone know how to do it? It can be done recursively.

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  • Is there a POSIX syscall to resolve file system paths?

    - by Mike
    Is there a POSIX syscall to resolve filesystem paths? I have the CWD for a path, as well as the path to a file from that CWD. I can't use chdir to switch to the directory because I need to resolve paths from multiple threads simultaneously. I considered appending a / in between the CWD and the path, but for some reason it feels like that's hacky. Is that the proper way to resolve relative paths?

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  • I've got a ComboBox that's giving me grief in WPF using the MVVM pattern

    - by Mike
    Here's my code: <ComboBox Grid.Column="1" Grid.Row="9" ItemsSource="{Binding Path=PriorityEntries}" SelectedItem="{Binding Path=Priority,Mode=TwoWay}"/> The comboBox is bound properly with PriorityEntries, and when i change the value of the comboBox the "set" of the bound property(Priority) is called setting it to what it needs to be. However, when i close the UserControl that this combobox resides, it calls the set property again with a value of null and then sets what the selectedItem was to null. Why is the comboBox being bound again when I close the usercontrol. I tried setting the mode to OneTime, but that won't reflect any changes...

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  • Why does this crash with access violation to 0xcccccc...?

    - by Mike
    I have a random piece of code, I use for reading from CSV files... and it's fine... until after about 2000 reads... then the getline line fails with an access violation to 0xcccccc... which I assume means that the input stream (file) has been cleared... Not that I know why :) int CCSVManager::ReadCSVLine ( fstream * fsInputFile, vector <string> * recordData ) { string s; getline ( *fsInputFile, s ); stringstream iss( s ); for ( unsigned int i = 0; i < getNumFields (); i++ ) { getline ( iss, s, ',' ); (*recordData)[i] = s; } return 0; } Any ideas why?

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  • iphone: how do I obtain a list of all files with a given extension on the app's document folder?

    - by Mike
    I have saved all my files using something like this NSString *fileName = [NSString stringWithFormat:@"%@.plist", myName]; NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES); NSString *documentsDirectory = [paths objectAtIndex:0]; NSString *appFile = [documentsDirectory stringByAppendingPathComponent:fileName]; [myDict writeToFile:appFile atomically:YES]) //where myDic is a dictionary containing the value of all parameters I would like to save. All these files were saved with the .plist extension. The same directory contains several JPG and PNG files. Now, how do I retrieve the list of all .plist files on that directory? thanks for any help.

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  • What is C# equivalent of PHP's mysql_fetch_array function?

    - by Mike Biff
    I am learning C#/ASP.NET and I am wondering what the C# equivalent of the following PHP code is? I know the userid, and I want to fetch the rows from this table into the array of the variable "row", so I then can use it as "row['name']" and "row['email']. $result = mysql_query("SELECT email, name FROM mytable WHERE id=7"); while ($row = mysql_fetch_array($result, MYSQL_ASSOC)) { printf("Email: %s Name: %s", $row["email"], $row["name"]); } Thanks.

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  • Junit (3.8.1) testing that an exception is thrown (works in unit test, fails when added to a testSui

    - by Mike Cargal
    I'm trying to test that I'm throwing an exception when appropriate. In my test class I have a method similar to the following: public void testParseException() { try { ClientEntitySingleton.getInstance(); fail("should have thrown exception."); } catch (RuntimeException re) { assertEquals( "<exception message>", re.getMessage()); } } This works fine (green bar) whenever I run that single unitTest class. However, when I add that test to a testSuite, I get a red bar Unit test failure reported on the exception. One more thing... it works in the testSuite, if it's the first test in the suite. Actually, I'm doing two of these tests and just figured out that if I make them the first two tests in the suite, all is good, but I get this failure if a "regular" test precedes it. So I have a work-around, but no real answer. Any ideas? Heres'a stack trace of the "failure" java.lang.RuntimeException: ProcEntity client dn="Xxxxxx/Xxxx/XXX" is defined multiple times. at com.someco.someprod.clientEntityManagement.ClientEntitySingleton.addClientEntity(ClientEntitySingleton.java:247) at com.someco.someprod.clientEntityManagement.ClientEntitySingleton.startElement(ClientEntitySingleton.java:264) at org.apache.xerces.parsers.AbstractSAXParser.startElement(Unknown Source) at org.apache.xerces.impl.XMLDocumentFragmentScannerImpl.scanStartElement(Unknown Source) at org.apache.xerces.impl.XMLDocumentFragmentScannerImpl$FragmentContentDispatcher.dispatch(Unknown Source) at org.apache.xerces.impl.XMLDocumentFragmentScannerImpl.scanDocument(Unknown Source) at org.apache.xerces.parsers.XML11Configuration.parse(Unknown Source) at org.apache.xerces.parsers.XML11Configuration.parse(Unknown Source) at org.apache.xerces.parsers.XMLParser.parse(Unknown Source) at org.apache.xerces.parsers.AbstractSAXParser.parse(Unknown Source) at com.someco.someprod.clientEntityManagement.ClientEntitySingleton.parse(ClientEntitySingleton.java:216) at com.someco.someprod.clientEntityManagement.ClientEntitySingleton.reload(ClientEntitySingleton.java:303) at com.someco.someprod.clientEntityManagement.ClientEntitySingleton.setInputSourceProvider(ClientEntitySingleton.java:88) at com.someco.someprod.clientEntityManagement.test.TestClientBase.setUp(TestClientBase.java:17) at com.someco.someprod.clientEntityManagement.test.TestClientEntityDup.setUp(TestClientEntityDup.java:8) at junit.framework.TestCase.runBare(TestCase.java:125) at junit.framework.TestResult$1.protect(TestResult.java:106) at junit.framework.TestResult.runProtected(TestResult.java:124) at junit.framework.TestResult.run(TestResult.java:109) at junit.framework.TestCase.run(TestCase.java:118) at junit.framework.TestSuite.runTest(TestSuite.java:208) at junit.framework.TestSuite.run(TestSuite.java:203) at junit.framework.TestSuite.runTest(TestSuite.java:208) at junit.framework.TestSuite.run(TestSuite.java:203) at org.eclipse.jdt.internal.junit.runner.junit3.JUnit3TestReference.run(JUnit3TestReference.java:128) at org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:38) at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:460) at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:673) at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:386) at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:196)

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  • R + Bioconductor : combining probesets in an ExpressionSet

    - by Mike Dewar
    Hi, First off, this may be the wrong Forum for this question, as it's pretty darn R+Bioconductor specific. Here's what I have: library('GEOquery') GDS = getGEO('GDS785') cd4T = GDS2eSet(GDS) cd4T <- cd4T[!fData(cd4T)$symbol == "",] Now cd4T is an ExpressionSet object which wraps a big matrix with 19794 rows (probesets) and 15 columns (samples). The final line gets rid of all probesets that do not have corresponding gene symbols. Now the trouble is that most genes in this set are assigned to more than one probeset. You can see this by doing gene_symbols = factor(fData(cd4T)$Gene.symbol) length(gene_symbols)-length(levels(gene_symbols)) [1] 6897 So only 6897 of my 19794 probesets have unique probeset - gene mappings. I'd like to somehow combine the expression levels of each probeset associated with each gene. I don't care much about the actual probe id for each probe. I'd like very much to end up with an ExpressionSet containing the merged information as all of my downstream analysis is designed to work with this class. I think I can write some code that will do this by hand, and make a new expression set from scratch. However, I'm assuming this can't be a new problem and that code exists to do it, using a statistically sound method to combine the gene expression levels. I'm guessing there's a proper name for this also but my googles aren't showing up much of use. Can anyone help?

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