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Contents
module Wice
# a matrix for all declared columns
class TableColumnMatrix < Hash #:nodoc:
# returns the main ActiveRecord model class
attr_reader :default_model_class
# a structure to hold generates Arels for all column filters
attr_reader :generated_conditions
# init a matrix of all columns
def initialize #:nodoc:
super
@generated_conditions = []
@by_table_names = HashWithIndifferentAccess.new
end
# add an Arel for a column
def add_condition(column, conditions)
@generated_conditions << [column, conditions] unless conditions.blank?
end
# returns a list of all Arels
def conditions
@generated_conditions.collect { |_, cond| cond }
end
# sets the main ActiveRecord model class
def default_model_class=(model) #:nodoc:
init_columns_of_table(model) unless key?(model)
@default_model_class = model
end
# returns Arels for one model
alias_method :get, :[]
def [](model) #:nodoc:
init_columns_of_table(model) unless key?(model)
get(model)
end
def get_column_by_model_class_and_column_name(model_class, column_name) #:nodoc:
self[model_class][column_name]
end
def get_column_in_default_model_class_by_column_name(column_name) #:nodoc:
if @default_model_class.nil?
raise WiceGridException.new("Cannot search for this column(#{column_name}) in a default model(#{@default_model_class}) as the default model is not set")
end
self[@default_model_class][column_name]
end
def init_columns_of_table(model) #:nodoc:
self[model] =
HashWithIndifferentAccess.new(model.columns.map(&:dup).index_by(&:name))
@by_table_names[model.table_name] = self[model]
self[model].each_value { |c| c.model = model }
end
alias_method :<<, :init_columns_of_table
end
end
Version data entries
5 entries across 5 versions & 1 rubygems