Method: QueryHelper#initialize

Defined in:
lib/query_helper.rb

#initialize(model: nil, query: nil, bind_variables: {}, sql_filter: SqlFilter.new(), sql_sort: SqlSort.new(), page: nil, per_page: nil, single_record: false, associations: [], as_json_options: nil, custom_mappings: {}, api_payload: false, preload: [], search_fields: [], search_string: nil, metadata: {}) ⇒ QueryHelper

Returns a new instance of QueryHelper.



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# File 'lib/query_helper.rb', line 19

def initialize(
  model: nil, # the model to run the query against
  query: nil, # a sql string or an active record query
  bind_variables: {}, # a list of bind variables to be embedded into the query
  sql_filter: SqlFilter.new(), # a SqlFilter object
  sql_sort: SqlSort.new(), # a SqlSort object
  page: nil, # define the page you want returned
  per_page: nil, # define how many results you want per page
  single_record: false, # whether or not you expect the record to return a single result, if toggled, only the first result will be returned
  associations: [], # a list of activerecord associations you'd like included in the payload
  as_json_options: nil, # a list of as_json options you'd like run before returning the payload
  custom_mappings: {}, # custom keyword => sql_expression mappings
  api_payload: false, # Return the paginated payload or simply return the result array
  preload: [], # preload activerecord associations - used instead of `associations` when you don't want them included in the payload
  search_fields: [],
  search_string: nil,
  metadata: {}
)
  @query = query.class < ActiveRecord::Relation ? query.to_sql : query
  @model = query.class < ActiveRecord::Relation ? query.base_class : model
  @bind_variables = bind_variables
  @sql_filter = sql_filter
  @sql_sort = sql_sort
  @page = determine_page(page: page, per_page: per_page)
  @per_page = determine_per_page(page: page, per_page: per_page)
  set_limit_and_offset()
  @single_record = single_record
  @associations = associations
  @as_json_options = as_json_options
  @custom_mappings = custom_mappings
  @api_payload = api_payload
  @preload = preload
  @search_fields = search_fields
  @search_string = search_string
  @metadata = metadata
end