mirror of https://github.com/rails/rails
Merge branch 'master' of github.com:lifo/docrails
This commit is contained in:
commit
203771da9e
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@ -67,7 +67,7 @@ module ActionController
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# class PostsController < ApplicationController
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# REALM = "SuperSecret"
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# USERS = {"dhh" => "secret", #plain text password
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# "dap" => Digest::MD5.hexdigest(["dap",REALM,"secret"].join(":")) #ha1 digest password
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# "dap" => Digest::MD5.hexdigest(["dap",REALM,"secret"].join(":"))} #ha1 digest password
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#
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# before_filter :authenticate, :except => [:index]
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#
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@ -142,6 +142,8 @@ module ActionView
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# ==== Options
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# * <tt>:use_month_numbers</tt> - Set to true if you want to use month numbers rather than month names (e.g.
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# "2" instead of "February").
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# * <tt>:use_two_digit_numbers</tt> - Set to true if you want to display two digit month and day numbers (e.g.
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# "02" instead of "February" and "08" instead of "8").
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# * <tt>:use_short_month</tt> - Set to true if you want to use abbreviated month names instead of full
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# month names (e.g. "Feb" instead of "February").
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# * <tt>:add_month_numbers</tt> - Set to true if you want to use both month numbers and month names (e.g.
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@ -189,6 +191,10 @@ module ActionView
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# date_select("article", "written_on", :start_year => 1995, :use_month_numbers => true,
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# :discard_day => true, :include_blank => true)
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#
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# # Generates a date select that when POSTed is stored in the article variable, in the written_on attribute,
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# # with two digit numbers used for months and days.
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# date_select("article", "written_on", :use_two_digit_numbers => true)
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#
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# # Generates a date select that when POSTed is stored in the article variable, in the written_on attribute
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# # with the fields ordered as day, month, year rather than month, day, year.
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# date_select("article", "written_on", :order => [:day, :month, :year])
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@ -502,6 +508,7 @@ module ActionView
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# Returns a select tag with options for each of the days 1 through 31 with the current day selected.
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# The <tt>date</tt> can also be substituted for a day number.
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# If you want to display days with a leading zero set the <tt>:use_two_digit_numbers</tt> key in +options+ to true.
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# Override the field name using the <tt>:field_name</tt> option, 'day' by default.
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#
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# ==== Examples
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@ -513,6 +520,9 @@ module ActionView
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# # Generates a select field for days that defaults to the number given.
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# select_day(5)
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#
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# # Generates a select field for days that defaults to the number given, but displays it with two digits.
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# select_day(5, :use_two_digit_numbers => true)
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#
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# # Generates a select field for days that defaults to the day for the date in my_date
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# # that is named 'due' rather than 'day'.
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# select_day(my_time, :field_name => 'due')
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@ -532,6 +542,7 @@ module ActionView
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# want both numbers and names, set the <tt>:add_month_numbers</tt> key in +options+ to true. If you would prefer
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# to show month names as abbreviations, set the <tt>:use_short_month</tt> key in +options+ to true. If you want
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# to use your own month names, set the <tt>:use_month_names</tt> key in +options+ to an array of 12 month names.
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# If you want to display months with a leading zero set the <tt>:use_two_digit_numbers</tt> key in +options+ to true.
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# Override the field name using the <tt>:field_name</tt> option, 'month' by default.
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#
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# ==== Examples
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@ -559,6 +570,10 @@ module ActionView
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# # will use keys like "Januar", "Marts."
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# select_month(Date.today, :use_month_names => %w(Januar Februar Marts ...))
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#
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# # Generates a select field for months that defaults to the current month that
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# # will use keys with two digit numbers like "01", "03".
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# select_month(Date.today, :use_two_digit_numbers => true)
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#
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# # Generates a select field for months with a custom prompt. Use <tt>:prompt => true</tt> for a
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# # generic prompt.
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# select_month(14, :prompt => 'Choose month')
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@ -817,6 +832,9 @@ module ActionView
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# If <tt>:use_month_numbers</tt> option is passed
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# month_name(1) => 1
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#
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# If <tt>:use_two_month_numbers</tt> option is passed
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# month_name(1) => '01'
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#
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# If <tt>:add_month_numbers</tt> option is passed
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# month_name(1) => "1 - January"
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def month_name(number)
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@ -858,6 +876,12 @@ module ActionView
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# <option value="2">2</option>
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# <option value="3">3</option>..."
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#
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# If <tt>:use_two_digit_numbers => true</tt> option is passed
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# build_options(15, :start => 1, :end => 31, :use_two_digit_numbers => true)
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# => "<option value="1">01</option>
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# <option value="2">02</option>
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# <option value="3">03</option>..."
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#
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# If <tt>:step</tt> options is passed
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# build_options(15, :start => 1, :end => 31, :step => 2)
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# => "<option value="1">1</option>
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@ -334,7 +334,7 @@ module ActionView
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end.join("\n").html_safe
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end
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# Returns a string of option tags that have been compiled by iterating over the +collection+ and assigning the
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# Returns a string of option tags that have been compiled by iterating over the +collection+ and assigning
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# the result of a call to the +value_method+ as the option value and the +text_method+ as the option text.
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# Example:
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# options_from_collection_for_select(@people, 'id', 'name')
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@ -219,7 +219,7 @@ module ActiveModel
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# +attribute+.
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# If no +message+ is supplied, <tt>:invalid</tt> is assumed.
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#
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# If +message+ is a symbol, it will be translated using the appropriate scope (see +translate_error+).
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# If +message+ is a symbol, it will be translated using the appropriate scope (see +generate_message+).
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# If +message+ is a proc, it will be called, allowing for things like <tt>Time.now</tt> to be used within an error.
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def add(attribute, message = nil, options = {})
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message = normalize_message(attribute, message, options)
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@ -41,7 +41,7 @@ module ActiveResource
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# Module to support validation and errors with Active Resource objects. The module overrides
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# Base#save to rescue ActiveResource::ResourceInvalid exceptions and parse the errors returned
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# in the web service response. The module also adds an +errors+ collection that mimics the interface
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# of the errors provided by ActiveRecord::Errors.
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# of the errors provided by ActiveModel::Errors.
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#
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# ==== Example
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#
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@ -100,8 +100,8 @@ class String
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#
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# +underscore+ will also change '::' to '/' to convert namespaces to paths.
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#
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# "ActiveRecord".underscore # => "active_record"
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# "ActiveRecord::Errors".underscore # => active_record/errors
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# "ActiveModel".underscore # => "active_model"
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# "ActiveModel::Errors".underscore # => "active_model/errors"
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def underscore
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ActiveSupport::Inflector.underscore(self)
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end
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@ -42,10 +42,10 @@ module ActiveSupport
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# +camelize+ will also convert '/' to '::' which is useful for converting paths to namespaces.
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#
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# Examples:
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# "active_record".camelize # => "ActiveRecord"
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# "active_record".camelize(:lower) # => "activeRecord"
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# "active_record/errors".camelize # => "ActiveRecord::Errors"
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# "active_record/errors".camelize(:lower) # => "activeRecord::Errors"
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# "active_model".camelize # => "ActiveModel"
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# "active_model".camelize(:lower) # => "activeModel"
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# "active_model/errors".camelize # => "ActiveModel::Errors"
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# "active_model/errors".camelize(:lower) # => "activeModel::Errors"
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#
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# As a rule of thumb you can think of +camelize+ as the inverse of +underscore+,
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# though there are cases where that does not hold:
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@ -66,8 +66,8 @@ module ActiveSupport
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# Changes '::' to '/' to convert namespaces to paths.
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#
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# Examples:
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# "ActiveRecord".underscore # => "active_record"
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# "ActiveRecord::Errors".underscore # => active_record/errors
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# "ActiveModel".underscore # => "active_model"
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# "ActiveModel::Errors".underscore # => "active_model/errors"
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#
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# As a rule of thumb you can think of +underscore+ as the inverse of +camelize+,
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# though there are cases where that does not hold:
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@ -295,7 +295,7 @@ h4. Sprockets
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h3. Active Record
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* Boolean columns with 'on' and 'ON' values are type casted to true.
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* Boolean columns with 'on' and 'ON' values are type cast to true.
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* When the +timestamps+ method creates the +created_at+ and +updated_at+ columns, it makes them non-nullable by default.
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@ -614,7 +614,7 @@ As shown in the example, you can also combine standard validations with your own
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h4. Custom Methods
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You can also create methods that verify the state of your models and add messages to the +errors+ collection when they are invalid. You must then register these methods by using one or more of the +validate+, +validate_on_create+ or +validate_on_update+ class methods, passing in the symbols for the validation methods' names.
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You can also create methods that verify the state of your models and add messages to the +errors+ collection when they are invalid. You must then register these methods by using the +validate+ class method, passing in the symbols for the validation methods' names.
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You can pass more than one symbol for each class method and the respective validations will be run in the same order as they were registered.
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@ -637,12 +637,24 @@ class Invoice < ActiveRecord::Base
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end
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</ruby>
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By default such validations will run every time you call +valid?+. It is also possible to control when to run these custom validations by giving an +:on+ option to the +validate+ method, with either: +:create+ or +:update+.
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<ruby>
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class Invoice < ActiveRecord::Base
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validate :active_customer, :on => :create
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def active_customer
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errors.add(:customer_id, "is not active") unless customer.active?
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end
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end
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</ruby>
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You can even create your own validation helpers and reuse them in several different models. For example, an application that manages surveys may find it useful to express that a certain field corresponds to a set of choices:
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<ruby>
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ActiveRecord::Base.class_eval do
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def self.validates_as_choice(attr_name, n, options={})
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validates attr_name, :inclusion => { {:in => 1..n}.merge(options) }
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validates attr_name, :inclusion => { { :in => 1..n }.merge!(options) }
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end
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end
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</ruby>
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@ -659,7 +671,7 @@ h3. Working with Validation Errors
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In addition to the +valid?+ and +invalid?+ methods covered earlier, Rails provides a number of methods for working with the +errors+ collection and inquiring about the validity of objects.
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The following is a list of the most commonly used methods. Please refer to the +ActiveRecord::Errors+ documentation for a list of all the available methods.
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The following is a list of the most commonly used methods. Please refer to the +ActiveModel::Errors+ documentation for a list of all the available methods.
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h4(#working_with_validation_errors-errors). +errors+
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@ -889,13 +901,8 @@ Below is a simple example where we change the Rails behavior to always display t
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<ruby>
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ActionView::Base.field_error_proc = Proc.new do |html_tag, instance|
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if instance.error_message.kind_of?(Array)
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%(#{html_tag}<span class="validation-error">
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#{instance.error_message.join(',')}</span>).html_safe
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else
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%(#{html_tag}<span class="validation-error">
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#{instance.error_message}</span>).html_safe
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end
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errors = Array(instance.error_message).join(',')
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%(#{html_tag}<span class="validation-error"> #{errors}</span>).html_safe
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end
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</ruby>
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@ -949,6 +956,7 @@ h4. Creating an Object
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* +before_validation+
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* +after_validation+
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* +before_save+
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* +around_save+
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* +before_create+
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* +around_create+
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* +after_create+
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@ -959,6 +967,7 @@ h4. Updating an Object
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* +before_validation+
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* +after_validation+
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* +before_save+
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* +around_save+
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* +before_update+
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* +around_update+
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* +after_update+
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@ -967,8 +976,8 @@ h4. Updating an Object
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h4. Destroying an Object
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* +before_destroy+
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* +after_destroy+
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* +around_destroy+
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* +after_destroy+
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WARNING. +after_save+ runs both on create and update, but always _after_ the more specific callbacks +after_create+ and +after_update+, no matter the order in which the macro calls were executed.
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@ -1013,7 +1022,7 @@ The following methods trigger callbacks:
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* +increment!+
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* +save+
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* +save!+
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* +save(false)+
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* +save(:validate => false)+
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* +toggle!+
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* +update+
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* +update_attribute+
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@ -71,7 +71,7 @@ person.destroy
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h3. Validations
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Module to support validation and errors with Active Resource objects. The module overrides Base#save to rescue ActiveResource::ResourceInvalid exceptions and parse the errors returned in the web service response. The module also adds an errors collection that mimics the interface of the errors provided by ActiveRecord::Errors.
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Module to support validation and errors with Active Resource objects. The module overrides Base#save to rescue ActiveResource::ResourceInvalid exceptions and parse the errors returned in the web service response. The module also adds an errors collection that mimics the interface of the errors provided by ActiveModel::Errors.
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h4. Validating client side resources by overriding validation methods in base class
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@ -853,7 +853,7 @@ below:
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</erb>
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Now when you refresh the +/posts+ page, you'll see a gray background to the
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page. This same gray background will be used throughout all the views for posts.
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page. This same gray background will be used throughout all the views.
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h4. Creating New Posts
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@ -1668,7 +1668,7 @@ right in the form where you create the post. First, create a new model to hold
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the tags:
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<shell>
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$ rails generate model tag name:string post:references
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$ rails generate model Tag name:string post:references
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</shell>
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Again, run the migration to create the database table:
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@ -819,13 +819,13 @@ h5. Action View Helper Methods
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* The +number_to_currency+, +number_with_precision+, +number_to_percentage+, +number_with_delimiter+, and +number_to_human_size+ helpers use the number format settings located in the "number":https://github.com/rails/rails/blob/master/actionpack/lib/action_view/locale/en.yml#L2 scope.
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h5. Active Record Methods
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h5. Active Model Methods
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* +model_name.human+ and +human_attribute_name+ use translations for model names and attribute names if available in the "activerecord.models":https://github.com/rails/rails/blob/master/activerecord/lib/active_record/locale/en.yml#L29 scope. They also support translations for inherited class names (e.g. for use with STI) as explained above in "Error message scopes".
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* +ActiveRecord::Errors#generate_message+ (which is used by Active Record validations but may also be used manually) uses +model_name.human+ and +human_attribute_name+ (see above). It also translates the error message and supports translations for inherited class names as explained above in "Error message scopes".
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* +ActiveModel::Errors#generate_message+ (which is used by Active Model validations but may also be used manually) uses +model_name.human+ and +human_attribute_name+ (see above). It also translates the error message and supports translations for inherited class names as explained above in "Error message scopes".
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* +ActiveRecord::Errors#full_messages+ prepends the attribute name to the error message using a separator that will be looked up from "activerecord.errors.format.separator":https://github.com/rails/rails/blob/master/actionpack/lib/action_view/locale/en.yml#L91 (and which defaults to +' '+).
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* +ActiveModel::Errors#full_messages+ prepends the attribute name to the error message using a separator that will be looked up from "errors.format":https://github.com/rails/rails/blob/master/activemodel/lib/active_model/locale/en.yml#L4 (and which defaults to +"%{attribute} %{message}"+).
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h5. Active Support Methods
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Reference in New Issue