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How do you manually execute SQL commands in Ruby On Rails using NuoDB
... @bonafernando, Your database might start throwing "Too many connections" errors if you have code that uses ActiveRecord::Base.connection without calling ActiveRecord::Base.clear_active_connections!. See api.rubyonrails.org/v5.2/classes/ActiveRecord/…
– eremite
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how to add records to has_many :through association in rails
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@Mischa how should i handle error if House.find(params[:house_id]) is nill.. i got error of TypeMismatch if params[:house_id] is nil.. i already using rescue. but is there any better_way..??
– Vishal
Jul 30 '16 a...
Does SQLAlchemy have an equivalent of Django's get_or_create?
... Look at Django's implementation of get_or_create. It checks for integrity error, and relies upon proper use of unique constraints.
– Ivan Virabyan
May 21 '12 at 6:17
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Long-held, incorrect programming assumptions [closed]
I am doing some research into common errors and poor assumptions made by junior (and perhaps senior) software engineers.
19...
Missing Maven dependencies in Eclipse project
...oblem but I have follow above steps and its working really fine. It causes error like class not found, xml dtd not found. But now it is resolved. Thanks Buddy. Upvote.
– Sagar007
Mar 14 '17 at 6:30
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store and retrieve a class object in shared preference
...not working. Can you please tell me steps to use that jar to remove above error. Because I successfully added that jar in libs folder and then in "java build path" also tried to add externally storing json on my desktop
– Shirish Herwade
May 29 '13 at 4:38
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Git diff --name-only and copy that list
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I'm getting an error cp: cannot stat 'git diff --name-only': No such file or directory on git bash on windows. What am I doing wrong? Destination-directory exists
– Shiva
Mar 21 '19 at 19:24
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What is the template binding vs binding?
.... (if, for example, Padding property didn't exist, you would get a compile error. But if you were to use a binding with TemplatedParent, you would only see the error at runtime.)
It is always a one-way binding.
It requires that both the source and target properties are dependency properties.
It ha...
PHP exec() vs system() vs passthru()
...n status"). Zero usually means it was successful, other values are usually error codes.
Other misc things to be aware of:
The shell_exec() and the backticks operator do the same thing.
There are also proc_open() and popen() which allow you to interactively read/write streams with an executing co...
How to see an HTML page on Github as a normal rendered HTML page to see preview in browser, without
... Note that this only works for public repos. Private ones will give the error message Error: Cannot load file
– Erik Trautman
Aug 19 '14 at 22:51
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