Class: Company::Selection

Inherits:

Collection

• Object
• Collection
• Company::Selection

Defined in:

lib/company/selection.rb

Overview

A list narrowed by something the platform could not be asked to narrow by: the list it came from is walked as it was, and only what the rule keeps comes through.

Instance Method Summary

• #between(from, to) ⇒ Selection

  The same rule, over the list narrowed to the window.

• #each {|Resource| ... } ⇒ Object
• #initialize(collection:) {|Resource| ... } ⇒ Selection constructor

  A new instance of Selection.

Methods inherited from Collection

#ids, #includes, #of, #past, #upcoming

Constructor Details

#initialize(collection:) {|Resource| ... } ⇒ Selection

Returns a new instance of Selection.

Parameters:

• collection (Collection) —

  list to walk.

Yields:

• (Resource) —

  each record of it, to keep or to let go.

# File 'lib/company/selection.rb', line 7

def initialize(collection:, &kept)
  @collection = collection
  @kept = kept
end

Instance Method Details

#between(from, to) ⇒ Selection

Returns the same rule, over the list narrowed to the window.

Parameters:

• from (Time, nil) —

  moment the window opens, or nothing for as far back as it goes.

• to (Time, nil) —

  moment the window closes, or nothing for as far ahead as it goes.

Returns:

• (Selection) —

  the same rule, over the list narrowed to the window.

# File 'lib/company/selection.rb', line 20

def between(from, to) = self.class.new(collection: @collection.between(from, to), &@kept)

#each {|Resource| ... } ⇒ Object

Yields:

• (Resource) —

  each record the rule kept, in the order the list answered it.

# File 'lib/company/selection.rb', line 13

def each
  @collection.each { |record| yield record if @kept.call record }
end