Class: SimpleRecord::ResultsArray

Inherits:
Object
  • Object
show all
Includes:
Enumerable
Defined in:
lib/results_array.rb

Overview

We need to make this behave as if the full set were loaded into the array.

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(clz = nil, params = [], items = [], next_token = nil) ⇒ ResultsArray

Returns a new instance of ResultsArray.



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# File 'lib/results_array.rb', line 11

def initialize(clz=nil, params=[], items=[], next_token=nil)
    @clz = clz
    #puts 'class=' + clz.inspect
    @params = params
    @items = items
    @currentset_items = items
    @next_token = next_token
    @i = 0
end

Instance Attribute Details

#clz ⇒ Object (readonly)

Returns the value of attribute clz.



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# File 'lib/results_array.rb', line 8

def clz
  @clz
end

#i ⇒ Object (readonly)

Returns the value of attribute i.



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# File 'lib/results_array.rb', line 8

def i
  @i
end

#items ⇒ Object (readonly)

Returns the value of attribute items.



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# File 'lib/results_array.rb', line 8

def items
  @items
end

#next_token ⇒ Object (readonly)

Returns the value of attribute next_token.



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# File 'lib/results_array.rb', line 8

def next_token
  @next_token
end

#params ⇒ Object (readonly)

Returns the value of attribute params.



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# File 'lib/results_array.rb', line 8

def params
  @params
end

Instance Method Details

#<<(val) ⇒ Object 



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# File 'lib/results_array.rb', line 21

def << (val)
    @items << val
end

#[](*i) ⇒ Object 



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# File 'lib/results_array.rb', line 25

def [](*i)
    # todo: load items up to i if size > i
    @items[*i]
end

#delete(item) ⇒ Object 



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# File 'lib/results_array.rb', line 98

def delete(item)
    @items.delete(item)
end

#delete_at(index) ⇒ Object 



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# File 'lib/results_array.rb', line 102

def delete_at(index)
    @items.delete_at(index)
end

#each(&blk) ⇒ Object 



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# File 'lib/results_array.rb', line 61

def each(&blk)
    limit = nil
    if params.size > 1
        options = params[1]
        limit = options[:limit]
    else
        options = {}
        params[1] = options
    end

    @currentset_items.each do |v|
        #puts @i.to_s
        yield v
        @i += 1
        if !limit.nil? && @i >= limit
            return
        end
    end
    # no more items, but is there a next token?
    return if clz.nil?

    unless next_token.nil?
        #puts 'finding more items...'
        #puts 'params in block=' + params.inspect
        #puts "i from results_array = " + @i.to_s

        options[:next_token] = next_token
        res = clz.find(*params)
        @currentset_items = res.items # get the real items array from the ResultsArray
        @currentset_items.each do |item|
            @items << item
        end
        @next_token = res.next_token
        each(&blk)
    end
end

#empty? ⇒ Boolean

Returns:



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# File 'lib/results_array.rb', line 38

def empty?
    @items.empty?
end

#first ⇒ Object 



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# File 'lib/results_array.rb', line 30

def first
    @items[0]
end

#include?(obj) ⇒ Boolean

Returns:



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# File 'lib/results_array.rb', line 42

def include?(obj)
    @items.include?(obj)
end

#last ⇒ Object 



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# File 'lib/results_array.rb', line 34

def last
    @items[@items.length-1]
end

#length ⇒ Object 



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# File 'lib/results_array.rb', line 57

def length
    return size
end

#size ⇒ Object 



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# File 'lib/results_array.rb', line 46

def size
    # puts 'SIZE count=' + @count.inspect
    return @count if @count
    params_for_count = params.dup
    params_for_count[0] = :count
    #puts 'params_for_count=' + params_for_count.inspect
    @count = clz.find(*params_for_count)
    # puts '@count=' + @count.to_s
    @count
end