class Middleman::Sitemap::Queryable::Query
Public Class Methods
new(model, opts={})
click to toggle source
# File lib/middleman-core/sitemap/queryable.rb, line 67 def initialize(model, opts={}) @model = model @where = opts[:where] || {} @order_by = opts[:order_by] @offset = opts[:offset] @limit = opts[:limit] end
Public Instance Methods
all()
click to toggle source
# File lib/middleman-core/sitemap/queryable.rb, line 113 def all result = @model.select(where: @where, order_by: @order_by) result = result.last([result.size - @offset, 0].max) if @offset.present? result = result.first(@limit) if @limit.present? result end
first()
click to toggle source
# File lib/middleman-core/sitemap/queryable.rb, line 105 def first all.first end
last()
click to toggle source
# File lib/middleman-core/sitemap/queryable.rb, line 109 def last all.last end
limit(number)
click to toggle source
# File lib/middleman-core/sitemap/queryable.rb, line 101 def limit(number) Query.new @model, opts(limit: number) end
offset(number)
click to toggle source
# File lib/middleman-core/sitemap/queryable.rb, line 97 def offset(number) Query.new @model, opts(offset: number) end
opts(new_opts)
click to toggle source
# File lib/middleman-core/sitemap/queryable.rb, line 85 def opts(new_opts) { where: {}.merge(@where), order_by: @order_by, offset: @offset, limit: @limit }.merge(new_opts) end
order_by(field)
click to toggle source
# File lib/middleman-core/sitemap/queryable.rb, line 93 def order_by(field) Query.new @model, opts(order_by: field.is_a?(Symbol) ? { field => :asc } : field) end
where(constraints_hash)
click to toggle source
# File lib/middleman-core/sitemap/queryable.rb, line 75 def where(constraints_hash) selector_hash = constraints_hash.reject { |key, _| !key.is_a? Selector } symbol_hash = constraints_hash.reject { |key, _| key.is_a? Selector } symbol_hash.each do |attribute, value| selector = Selector.new(attribute: attribute, operator: 'equal') selector_hash.update(selector => value) end Query.new @model, opts(where: @where.merge(selector_hash)) end