Class: WCC::API::BaseQuery

Inherits:
Object
  • Object
show all
Defined in:
lib/wcc/api/base_query.rb

Constant Summary collapse

MAX_LIMIT = 
50

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(params, scope: default_scope) ⇒ BaseQuery

Returns a new instance of BaseQuery.



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# File 'lib/wcc/api/base_query.rb', line 25

def initialize(params, scope: default_scope)
  @scope = scope
  set_defaults
  permitted_keys.each do |key|
    self.public_send("#{key}=", params[key]) if params.has_key?(key)
  end
end

Instance Attribute Details

#filter ⇒ Object

Returns the value of attribute filter.



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# File 'lib/wcc/api/base_query.rb', line 5

def filter
  @filter
end

#limit ⇒ Object

Returns the value of attribute limit.



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# File 'lib/wcc/api/base_query.rb', line 4

def limit
  @limit
end

#offset ⇒ Object

Returns the value of attribute offset.



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# File 'lib/wcc/api/base_query.rb', line 4

def offset
  @offset
end

#scope ⇒ Object (readonly)

Returns the value of attribute scope.



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# File 'lib/wcc/api/base_query.rb', line 3

def scope
  @scope
end

Instance Method Details

#call(scope = self.scope) ⇒ Object 



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# File 'lib/wcc/api/base_query.rb', line 33

def call(scope=self.scope)
  scope = scope.dup
  scope = paged(scope)
  scope = ordered(scope)
  scope = filtered(scope)
  scope
end

#default ⇒ Object 



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# File 'lib/wcc/api/base_query.rb', line 9

def default
  {
    limit: 20,
    offset: 0,
    filter: {}
  }
end

#default_scope ⇒ Object

Raises:

  • (NotImplementedError) 


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# File 'lib/wcc/api/base_query.rb', line 21

def default_scope
  raise NotImplementedError
end

#filtered(scope = self.scope) ⇒ Object 



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# File 'lib/wcc/api/base_query.rb', line 51

def filtered(scope=self.scope)
  scope
end

#ordered(scope = self.scope) ⇒ Object 



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# File 'lib/wcc/api/base_query.rb', line 47

def ordered(scope=self.scope)
  scope
end

#paged(scope = self.scope) ⇒ Object 



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# File 'lib/wcc/api/base_query.rb', line 41

def paged(scope=self.scope)
  scope
    .limit(limit)
    .offset(offset)
end

#permitted_keys ⇒ Object 



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# File 'lib/wcc/api/base_query.rb', line 17

def permitted_keys
  i(limit offset filter)
end

#set_defaults ⇒ Object 



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# File 'lib/wcc/api/base_query.rb', line 55

def set_defaults
  default.each do |key, value|
    public_send("#{key}=", value)
  end
end

#size ⇒ Object 



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# File 'lib/wcc/api/base_query.rb', line 74

def size
  if total - offset < limit
    total - offset
  else
    limit
  end
end

#total ⇒ Object 



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# File 'lib/wcc/api/base_query.rb', line 70

def total
  @total ||= filtered.count
end