Class: Dynameek::Model::Query::QueryChain

Inherits:
Object
  • Object
show all
Defined in:
lib/dynameek/model/query.rb

Overview

Similar to dynamoids approach but lighter (hopefully)

Constant Summary collapse

RANGE_QUERY_MAP = 
{
  eq: :range_value,
  gte: :range_gte,
  gt: :range_greater_than,
  lte: :range_lte,
  lt: :range_less_than,
  # begins_with: :range_begins_with
}

Instance Method Summary collapse

Constructor Details

#initialize(model) ⇒ QueryChain

Returns a new instance of QueryChain.



7
8
9
10
11
 
# File 'lib/dynameek/model/query.rb', line 7

def initialize(model)
  @model = model
  @hash_key = nil
  @range = {eq: nil,  gte: nil, gt: nil, lte: nil, lt: nil}
end

Instance Method Details

#all ⇒ Object 



28
29
30
 
# File 'lib/dynameek/model/query.rb', line 28

def all
  run
end

#delete ⇒ Object 



24
25
26
 
# File 'lib/dynameek/model/query.rb', line 24

def delete
  each(&:delete)
end

#each ⇒ Object 



36
37
38
39
40
 
# File 'lib/dynameek/model/query.rb', line 36

def each
  all.each do |item|
    yield(item)
  end
end

#each_with_index ⇒ Object 



42
43
44
45
46
 
# File 'lib/dynameek/model/query.rb', line 42

def each_with_index
  all.each_with_index do |item, index|
    yield(item, index)
  end
end

#query(hash_key) ⇒ Object 



13
14
15
16
 
# File 'lib/dynameek/model/query.rb', line 13

def query(hash_key)
  @hash_key = hash_key
  self
end

#size ⇒ Object 



32
33
34
 
# File 'lib/dynameek/model/query.rb', line 32

def size
  all.size
end

#where(value, op = :eq) ⇒ Object

Raises:

  • (Exception) 


18
19
20
21
22
 
# File 'lib/dynameek/model/query.rb', line 18

def where(value, op=:eq)
  raise Exception.new("Op #{op.to_s} not recognised") if(!@range.keys.include?(op))
  @range[op] = value
  self
end