Class: JsonApiClient::Query::Builder

Inherits:
Object
  • Object
show all
Defined in:
lib/json_api_client/query/builder.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(klass, opts = {}) ⇒ Builder

Returns a new instance of Builder.



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# File 'lib/json_api_client/query/builder.rb', line 10

def initialize(klass, opts = {})
  @klass             = klass
  @primary_key       = opts.fetch( :primary_key, nil )
  @pagination_params = opts.fetch( :pagination_params, {} )
  @path_params       = opts.fetch( :path_params, {} )
  @additional_params = opts.fetch( :additional_params, {} )
  @filters           = opts.fetch( :filters, {} )
  @includes          = opts.fetch( :includes, [] )
  @orders            = opts.fetch( :orders, [] )
  @fields            = opts.fetch( :fields, [] )
end

Dynamic Method Handling

This class handles dynamic methods through the method_missing method

#method_missing(method_name, *args, &block) ⇒ Object 



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# File 'lib/json_api_client/query/builder.rb', line 108

def method_missing(method_name, *args, &block)
  to_a.send(method_name, *args, &block)
end

Instance Attribute Details

#klass ⇒ Object (readonly)

Returns the value of attribute klass.



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# File 'lib/json_api_client/query/builder.rb', line 7

def klass
  @klass
end

Instance Method Details

#==(other) ⇒ Object Also known as: eql? 



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# File 'lib/json_api_client/query/builder.rb', line 119

def ==(other)
  return false unless other.is_a?(self.class)

  hash == other.hash
end

#build(attrs = {}) ⇒ Object 



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# File 'lib/json_api_client/query/builder.rb', line 69

def build(attrs = {})
  klass.new @path_params.merge(attrs.symbolize_keys)
end

#create(attrs = {}) ⇒ Object 



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# File 'lib/json_api_client/query/builder.rb', line 73

def create(attrs = {})
  klass.create @path_params.merge(attrs.symbolize_keys)
end

#find(args = {}) ⇒ Object 



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# File 'lib/json_api_client/query/builder.rb', line 93

def find(args = {})
  if klass.raise_on_blank_find_param && args.blank?
    raise Errors::NotFound, 'blank .find param'
  end

  case args
  when Hash
    scope = where(args)
  else
    scope = _new_scope( primary_key: args )
  end

  scope._fetch
end

#first ⇒ Object 



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# File 'lib/json_api_client/query/builder.rb', line 61

def first
  paginate(page: 1, per_page: 1).to_a.first
end

#hash ⇒ Object 



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# File 'lib/json_api_client/query/builder.rb', line 112

def hash
  [
    klass,
    params
  ].hash
end

#includes(*tables) ⇒ Object 



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# File 'lib/json_api_client/query/builder.rb', line 34

def includes(*tables)
  _new_scope( includes: parse_related_links(*tables) )
end

#last ⇒ Object 



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# File 'lib/json_api_client/query/builder.rb', line 65

def last
  paginate(page: 1, per_page: 1).pages.last.to_a.last
end

#order(*args) ⇒ Object 



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# File 'lib/json_api_client/query/builder.rb', line 30

def order(*args)
  _new_scope( orders: parse_orders(*args) )
end

#page(number) ⇒ Object 



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# File 'lib/json_api_client/query/builder.rb', line 49

def page(number)
  _new_scope( pagination_params: { klass.paginator.page_param => number || 1 } )
end

#paginate(conditions = {}) ⇒ Object 



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# File 'lib/json_api_client/query/builder.rb', line 42

def paginate(conditions = {})
  scope = _new_scope
  scope = scope.page(conditions[:page]) if conditions[:page]
  scope = scope.per(conditions[:per_page]) if conditions[:per_page]
  scope
end

#params ⇒ Object 



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# File 'lib/json_api_client/query/builder.rb', line 77

def params
  filter_params
    .merge(pagination_params)
    .merge(includes_params)
    .merge(order_params)
    .merge(select_params)
    .merge(primary_key_params)
    .merge(path_params)
    .merge(additional_params)
end

#per(size) ⇒ Object 



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# File 'lib/json_api_client/query/builder.rb', line 53

def per(size)
  _new_scope( pagination_params: { klass.paginator.per_page_param => size } )
end

#select(*fields) ⇒ Object 



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# File 'lib/json_api_client/query/builder.rb', line 38

def select(*fields)
  _new_scope( fields: parse_fields(*fields) )
end

#to_a ⇒ Object Also known as: all 



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# File 'lib/json_api_client/query/builder.rb', line 88

def to_a
  @to_a ||= _fetch
end

#where(conditions = {}) ⇒ Object 



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# File 'lib/json_api_client/query/builder.rb', line 22

def where(conditions = {})
  # pull out any path params here
  path_conditions = conditions.slice(*klass.prefix_params)
  unpathed_conditions = conditions.except(*klass.prefix_params)

  _new_scope( path_params: path_conditions, filters: unpathed_conditions )
end

#with_params(more_params) ⇒ Object 



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# File 'lib/json_api_client/query/builder.rb', line 57

def with_params(more_params)
  _new_scope( additional_params: more_params )
end