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* Freeze string literals when not mutated.schneems2015-07-193-3/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | I wrote a utility that helps find areas where you could optimize your program using a frozen string instead of a string literal, it's called [let_it_go](https://github.com/schneems/let_it_go). After going through the output and adding `.freeze` I was able to eliminate the creation of 1,114 string objects on EVERY request to [codetriage](codetriage.com). How does this impact execution? To look at memory: ```ruby require 'get_process_mem' mem = GetProcessMem.new GC.start GC.disable 1_114.times { " " } before = mem.mb after = mem.mb GC.enable puts "Diff: #{after - before} mb" ``` Creating 1,114 string objects results in `Diff: 0.03125 mb` of RAM allocated on every request. Or 1mb every 32 requests. To look at raw speed: ```ruby require 'benchmark/ips' number_of_objects_reduced = 1_114 Benchmark.ips do |x| x.report("freeze") { number_of_objects_reduced.times { " ".freeze } } x.report("no-freeze") { number_of_objects_reduced.times { " " } } end ``` We get the results ``` Calculating ------------------------------------- freeze 1.428k i/100ms no-freeze 609.000 i/100ms ------------------------------------------------- freeze 14.363k (± 8.5%) i/s - 71.400k no-freeze 6.084k (± 8.1%) i/s - 30.450k ``` Now we can do some maths: ```ruby ips = 6_226k # iterations / 1 second call_time_before = 1.0 / ips # seconds per iteration ips = 15_254 # iterations / 1 second call_time_after = 1.0 / ips # seconds per iteration diff = call_time_before - call_time_after number_of_objects_reduced * diff * 100 # => 0.4530373333993266 miliseconds saved per request ``` So we're shaving off 1 second of execution time for every 220 requests. Is this going to be an insane speed boost to any Rails app: nope. Should we merge it: yep. p.s. If you know of a method call that doesn't modify a string input such as [String#gsub](https://github.com/schneems/let_it_go/blob/b0e2da69f0cca87ab581022baa43291cdf48638c/lib/let_it_go/core_ext/string.rb#L37) please [give me a pull request to the appropriate file](https://github.com/schneems/let_it_go/blob/b0e2da69f0cca87ab581022baa43291cdf48638c/lib/let_it_go/core_ext/string.rb#L37), or open an issue in LetItGo so we can track and freeze more strings. Keep those strings Frozen ![](https://www.dropbox.com/s/z4dj9fdsv213r4v/let-it-go.gif?dl=1)
* Revert "Revert "Reduce allocations when running AR callbacks.""Guo Xiang Tan2015-07-162-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This reverts commit bdc1d329d4eea823d07cf010064bd19c07099ff3. Before: Calculating ------------------------------------- 22.000 i/100ms ------------------------------------------------- 229.700 (± 0.4%) i/s - 1.166k Total Allocated Object: 9939 After: Calculating ------------------------------------- 24.000 i/100ms ------------------------------------------------- 246.443 (± 0.8%) i/s - 1.248k Total Allocated Object: 7939 ``` begin require 'bundler/inline' rescue LoadError => e $stderr.puts 'Bundler version 1.10 or later is required. Please update your Bundler' raise e end gemfile(true) do source 'https://rubygems.org' # gem 'rails', github: 'rails/rails', ref: 'bdc1d329d4eea823d07cf010064bd19c07099ff3' gem 'rails', github: 'rails/rails', ref: 'd2876141d08341ec67cf6a11a073d1acfb920de7' gem 'arel', github: 'rails/arel' gem 'sqlite3' gem 'benchmark-ips' end require 'active_record' require 'benchmark/ips' ActiveRecord::Base.establish_connection('sqlite3::memory:') ActiveRecord::Migration.verbose = false ActiveRecord::Schema.define do create_table :users, force: true do |t| t.string :name, :email t.boolean :admin t.timestamps null: false end end class User < ActiveRecord::Base default_scope { where(admin: true) } end admin = true 1000.times do attributes = { name: "Lorem ipsum dolor sit amet, consectetur adipiscing elit.", email: "foobar@email.com", admin: admin } User.create!(attributes) admin = !admin end GC.disable Benchmark.ips(5, 3) do |x| x.report { User.all.to_a } end key = if RUBY_VERSION < '2.2' :total_allocated_object else :total_allocated_objects end before = GC.stat[key] User.all.to_a after = GC.stat[key] puts "Total Allocated Object: #{after - before}" ```
* docs, clarify the meanaing of return values from validation methods.Yves Senn2015-07-071-0/+3
| | | | | | | | | | [ci skip] Closes #20792. Custom validation methods are implemented in terms of callbacks. The `validate` callback chain can't be halted using return values of individual callbacks.
* docs, remove accidental :nodoc: of ActiveModel::Validations::ClassMethods ↵Yves Senn2015-07-071-2/+1
| | | | | | | | | | | | | | | | | | | | | methods. [ci skip] While this :nodoc: did hide the constant it also removed the following methods from the API docs: - #attribute_method? - #clear_validators! - #validate - #validators - #validators_on Those are public API and should be visible. Issue was caused by dee4fbc /cc @zzak
* Separate the constraint and other options [ci skip]Robin Dupret2015-07-011-3/+8
| | | | | | | | | | Only one constraint option can be used at a time (except for the minimum and maximum ones that can eventually be combined). However, other options can be used with them (e.g. the validation failure message). So let's make the distinction between these two different options categories. [Yves Senn, Matthew Draper & Robin Dupret]
* Improve Validation Helpers' documentation comments and testsRadan Skoric2015-06-273-7/+10
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* A few documentation fixes [ci skip]Robin Dupret2015-06-231-1/+1
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* Add nodoc to the Validations::Helpers [ci skip]Mehmet Emin İNAÇ2015-06-221-1/+1
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* docs, :scissors: wrongly placed heading. [ci skip]Yves Senn2015-06-221-2/+0
| | | | | The heading "Active Model Length Validator" was shown on the "ActiveModel::Validations" page without any text following it.
* Move the validations HelperMethods to its own fileRoque Pinel2015-06-212-10/+13
| | | | | | Closes #11209 [Roque Pinel & Steven Yang]
* Revert "Add code example for include option of ↵Rafael Mendonça França2015-06-101-14/+1
| | | | | | | | AM::Serialization#serializable_hash" This reverts commit 3d949f34816d6eca0a6b59cfa08d91f36e8e64dd. This was already documented in other PR.
* Add code example for include option of AM::Serialization#serializable_hashRadan Skoric2015-06-091-1/+14
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* Tiny documentation edits [ci skip]Robin Dupret2015-06-071-2/+2
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* Merge pull request #20004 from rusikf/patch-1Robin Dupret2015-06-071-0/+31
|\ | | | | add docs to include option at ActiveModel::Serialization [ci skip]
| * add docs to include option at ActiveModel::Serialization#serializable_hash ↵rusikf2015-05-111-0/+31
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* | formatting changesunknown2015-05-292-5/+5
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* | minor rdoc syntax fix [ci skip]Gourav Tiwari2015-05-081-2/+2
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* | Adds/Corrects use case for adding an error messageZamith2015-05-041-1/+1
|/ | | | | I believe this is a use case that was supposed to be supported, and it's a small fix.
* ensure `method_missing` called for non-existing methods passed toJay Elaraj2015-04-281-1/+1
| | | | `ActiveModel::Serialization#serializable_hash`
* Don't document private internal constant [ci skip]Zachary Scott2015-04-261-0/+1
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* Fix grammar/style: assigns/declares -> assignments/declarations.Tim Wade2015-04-241-3/+3
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* Fix grammar/style: use (v) fall back (on).Tim Wade2015-04-241-1/+1
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* Fix grammar/style: break up long sentence.Tim Wade2015-04-241-2/+2
| | | | | | | A conjunction was needed to make these sentences correct. Breaking them up seemed like a better option. [ci skip]
* Fix grammar/style: pluralize 'each of its method'Tim Wade2015-04-241-1/+1
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* Add `ActiveModel::Dirty#[attr_name]_previously_changed?` andFernando Tapia Rico2015-04-211-2/+21
| | | | | | | | `ActiveModel::Dirty#[attr_name]_previous_change` to improve access to recorded changes after the model has been saved. It makes the dirty-attributes query methods consistent before and after saving.
* Merge pull request #19448 from tgxworld/fix_activesupport_callbacks_clash_on_runRafael Mendonça França2015-04-062-2/+2
|\ | | | | Fix AS::Callbacks raising an error when `:run` callback is defined.
| * Revert "Reduce allocations when running AR callbacks."Guo Xiang Tan2015-03-222-2/+2
| | | | | | | | This reverts commit 796cab45561fce268aa74e6587cdb9cae3bb243e.
* | fix typo in deprecation message. [Robin Dupret]Yves Senn2015-04-051-1/+1
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* | Merge pull request #19594 from radar/require-module-delegationGuillermo Iguaran2015-03-301-0/+1
|\ \ | | | | | | Require Module#delegate core ext in ActiveModel::Naming
| * | Require Module#delegate core ext in ActiveModel::NamingRyan Bigg2015-03-311-0/+1
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* | | Merge pull request #19021 from morgoth/activemodel-errors-refactoringRafael Mendonça França2015-03-301-24/+4
|\ \ \ | | | | | | | | Simplify and alias ActiveModel::Errors methods where possible
| * | | Simplify and alias ActiveModel::Errors methods where possibleWojciech Wnętrzak2015-02-201-24/+4
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* | | | Deprecate the `:tokenizer` option to `validates_length_of`Sean Griffin2015-03-291-8/+30
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | As demonstrated by #19570, this option is severely limited, and satisfies an extremely specific use case. Realistically, there's not much reason for this option to exist. Its functionality can be trivially replicated with a normal Ruby method. Let's deprecate this option, in favor of the simpler solution.
* | | | Fix ActiveModel::Errors#delete return value to stay backward compatibleRadan Skoric2015-03-221-7/+7
| |_|/ |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Rails 5.0 changes to ActiveModel::Errors include addition of `details` that also accidentally changed the return value of `delete`. Since there was no test for that behavior it went unnoticed. This commit adds a test and fixes the regression. Small improvements to comments have also been made. Since `get` is getting deprecated it is better to use `[]` in other methods' code examples. Also, in the module usage example, `def Person.method` was replaced with a more commonly used `def self.method` code style.
* | | Fix ActiveModel::Errors deprecation messages failing when used on its ownRadan Skoric2015-03-211-0/+1
| | | | | | | | | | | | | | | | | | Deprecation messages in ActiveModel::Errors are using String#squish from ActiveSupport but were not explicitly requiring it, causing failures when used outside rails.
* | | Fix spelling error in has_secure_password documentation [ci skip]Melanie Gilman2015-03-031-1/+1
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* | Merge pull request #19077 from robin850/unknown-attribute-errorSean Griffin2015-03-023-11/+12
|\ \ | | | | | | Move `UnknownAttributeError` to a more sane namespace
| * | Follow-up to #10776Robin Dupret2015-02-263-11/+12
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The name `ActiveModel::AttributeAssignment::UnknownAttributeError` is too implementation specific so let's move the constant directly under the ActiveModel namespace. Also since this constant used to be under the ActiveRecord namespace, to make the upgrade path easier, let's avoid raising the former constant when we deal with this error on the Active Record side.
* | | Removed non-standard and unused require 'active_support/deprecation' from ↵Vipul A M2015-02-271-1/+0
|/ / | | | | | | parts out of active_support.
* | activemodel: make .model_name json encodableIan Ker-Seymer2015-02-241-1/+1
| | | | | | | | | | | | Previously, calling `User.model_name.to_json` would result in an infinite recursion as `.model_name` inherited its `.as_json` behavior from Object. This patch fixes that unexpected behavior by delegating `.as_json` to :name.
* | Change the deprecation messages to show the preferred way to work withRafael Mendonça França2015-02-202-7/+7
|/ | | | ActiveModel::Errors
* Move the `validate!` method to `ActiveModel::Validations`.Lucas Mazza2015-02-202-0/+34
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* Merge pull request #17144 from skojin/patch-doc-validation-format-z-regexpRafael Mendonça França2015-02-201-1/+1
|\ | | | | fix mistype in doc about \z regexp
| * fix mistype in doc about \z regexpSergey Kojin2014-10-021-1/+1
| | | | | | | | replace \Z with regular \z
* | use `messages` instead of deprecated `ActiveModel::Errors#[]=` method [ci skip]yuuji.yaginuma2015-02-201-1/+1
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* | Merge pull request #18996 from morgoth/deprecate-more-errors-methodsYves Senn2015-02-191-0/+16
|\ \ | | | | | | | | | Deprecate `ActiveModel::Errors` `add_on_empty` and `add_on_blank` methods
| * | Deprecate `ActiveModel::Errors` `add_on_empty` and `add_on_blank` methodsWojciech Wnętrzak2015-02-191-0/+14
|/ / | | | | | | without replacement.
* | Merge pull request #18634 from morgoth/deprecate-some-errors-methodsRafael Mendonça França2015-02-181-9/+28
|\ \ | | | | | | | | | Deprecate `ActiveModel::Errors` `get`, `set` and `[]=` methods.
| * | Deprecate `ActiveModel::Errors` `get`, `set` and `[]=` methods.Wojciech Wnętrzak2015-02-011-9/+28
| | | | | | | | | | | | They have inconsistent behaviour currently.
* | | Tiny documentation edits [ci skip]Robin Dupret2015-02-151-4/+6
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