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Change from SQLite to PostgreSQL in a fresh Rails project
I have a rails app that's databases are in SQLite (The dev and production). Since I am moving to heroku, I want to convert my database to PostgreSQL.
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Options for embedding Chromium instead of IE WebBrowser control with WPF/C#
...'ve linked my article where I compare the memory footprints of different approaches to hosting HTML WebView in a basic Windows Desktop application:
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How to create REST URLs without verbs?
...ruggling to determine how to design restful URLs. I'm all for the restful approach of using URLs with nouns and not verbs don't understand how to do this.
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How to prevent the activity from loading twice on pressing the button
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This is the correct approach. It will even handle Button Selected States for you (if you provide them) and all the Material Design “goodies” you’d expect from a simple standard Widget. I can’t believe people use timers for this. Then you...
Git is ignoring files that aren't in gitignore
...oblem - a directory was being ignored by git with this error:
➭ git add app/views/admin/tags/
The following paths are ignored by one of your .gitignore files:
app/views/admin/tags
Use -f if you really want to add them.
fatal: no files added
I finally figured out my problem was a line in my ~/.g...
How do I check CPU and Memory Usage in Java?
...emory = runtime.totalMemory();
long freeMemory = runtime.freeMemory();
sb.append("free memory: " + format.format(freeMemory / 1024) + "<br/>");
sb.append("allocated memory: " + format.format(allocatedMemory / 1024) + "<br/>");
sb.append("max memory: " + format.format(maxMemory / 1024) +...
Lightweight Javascript DB for use in Node.js [closed]
...with Persistence for node-webkit
LokiJS to be the ideal solution:
Mobile applications - especially HTML5 based (Cordova, Phonegap,
etc.)
Node.js embedded datastore for small-to-medium apps
Embedded in desktop application with Node Webkit
https://github.com/techfort/LokiJS
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Could not load file or assembly Microsoft.SqlServer.management.sdk.sfc version 11.0.0.0
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Problem: (Sql server 2014) This issue happens when assembly Microsoft.SqlServer.management.sdk.sfc version 12.0.0.0 not found by visual studio.
Solution: just go to http://www.microsoft.com/en-us/download/details.aspx?id=42295 and download:
ENU\x64\SharedManage...
Break when a value changes using the Visual Studio debugger
...eading somewhere this is a tough feature to implement in debugging managed apps especially with garbage collector involved.
– Gulzar Nazim
Oct 1 '08 at 23:25
27
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Determine what attributes were changed in Rails after_save callback?
...ved_change_to_attribute?(:published).
Rails 3–5.1
Warning
This approach works through Rails 5.1 (but is deprecated in 5.1 and has breaking changes in 5.2). You can read about the change in this pull request.
In your after_update filter on the model you can use _changed? accessor. So fo...