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Converting an array of objects to ActiveRecord::Relation

...omplex. That being said here is my solution, I've extended Array class # lib/core_ext/array.rb class Array def to_activerecord_relation return ApplicationRecord.none if self.empty? clazzes = self.collect(&:class).uniq raise 'Array cannot be converted to ActiveRecord::Relation ...
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How to generate keyboard events in Python?

...ENTF_SCANCODE = 0x0008 MAPVK_VK_TO_VSC = 0 # msdn.microsoft.com/en-us/library/dd375731 VK_TAB = 0x09 VK_MENU = 0x12 # C struct definitions wintypes.ULONG_PTR = wintypes.WPARAM class MOUSEINPUT(ctypes.Structure): _fields_ = (("dx", wintypes.LONG), ("dy", ...
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What is the best way to solve an Objective-C namespace collision?

...erence between the C and Objective-C runtimes is, as I understand it, when libraries are loaded, the functions in those libraries contain pointers to any symbols they reference, whereas in Objective-C, they contain string representations of the names of thsoe symbols. Thus, in your example, you can ...
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How to change the session timeout in PHP?

... Also, on Ubuntu 14 it looks like /usr/lib/php5/maxlifetime won't calculate a value below 24 minutes. So you can't set your session timeouts to lower than that. – Henry Nov 22 '17 at 5:16 ...
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Why does C++ need a separate header file?

...on. At link time you will provide a list of .o files, or static or dynamic libraries, and the header in effect is a promise that the definitions of the functions will be in there somewhere. share | ...
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Android: Difference between Parcelable and Serializable?

...Parcelable. Edited:----- 2) Kotlinx Serialization Kotlinx Serialization Library For Kotlin serialization need to add below dependency and plugin implementation "org.jetbrains.kotlinx:kotlinx-serialization-runtime:0.9.1" apply plugin: 'kotlinx-serialization' Your build.gradle file apply pl...
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How to check if a table exists in a given schema

......Or who likes all normalized to text Three flavors of my old SwissKnife library: relname_exists(anyThing), relname_normalized(anyThing) and relnamechecked_to_array(anyThing). All checks from pg_catalog.pg_class table, and returns standard universal datatypes (boolean, text or text[]). /** * Fro...
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Things possible in IntelliJ that aren't possible in Eclipse?

...sibly merge. It allows to to specify that I need all .jars inside WEB-INF\lib folder, without picking each file separately, so when someone commits new .jar into that folder it picks it up automatically. Mentioned above is probably 10% of what it does. I do not use Maven, Flex, Swing, EJB and a lo...
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Why are Perl 5's function prototypes bad?

...the Params::Validate module: search.cpan.org/~drolsky/Params-Validate-0.91/lib/Params/… – friedo Nov 17 '08 at 22:22 10 ...
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No == operator found while comparing structs in C++

...... When you "own" (i.e. can edit, a factor with corporate and 3rd party libs) the class you want to compare, and especially with C++14's preparedness to deduce function return type from the return statement, it's often nicer to add a "tie" member function to the class you want to be able to compa...