Class: Middleman::Sitemap::Queryable::Query
- Inherits:
-
Object
- Object
- Middleman::Sitemap::Queryable::Query
- Defined in:
- lib/middleman-core/sitemap/queryable.rb
Instance Method Summary collapse
- #all ⇒ Object
- #first ⇒ Object
-
#initialize(model) ⇒ Query
constructor
A new instance of Query.
- #last ⇒ Object
- #limit(number) ⇒ Object
- #offset(number) ⇒ Object
- #order_by(field) ⇒ Object
- #where(constraints_hash) ⇒ Object
Constructor Details
#initialize(model) ⇒ Query
Returns a new instance of Query.
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# File 'lib/middleman-core/sitemap/queryable.rb', line 68 def initialize(model) @model = model @where = {} end |
Instance Method Details
#all ⇒ Object
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# File 'lib/middleman-core/sitemap/queryable.rb', line 107 def all result = @model.select(:where => @where, :order_by => @order_by) if @offset.present? result = result.last([result.size - @offset, 0].max) end if @limit.present? result = result.first(@limit) end result end |
#first ⇒ Object
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# File 'lib/middleman-core/sitemap/queryable.rb', line 99 def first self.all.first end |
#last ⇒ Object
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# File 'lib/middleman-core/sitemap/queryable.rb', line 103 def last self.all.last end |
#limit(number) ⇒ Object
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# File 'lib/middleman-core/sitemap/queryable.rb', line 94 def limit(number) @limit = number self end |
#offset(number) ⇒ Object
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# File 'lib/middleman-core/sitemap/queryable.rb', line 89 def offset(number) @offset = number self end |
#order_by(field) ⇒ Object
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# File 'lib/middleman-core/sitemap/queryable.rb', line 84 def order_by(field) @order_by = field.is_a?(Symbol) ? {field => :asc} : field self end |
#where(constraints_hash) ⇒ Object
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# File 'lib/middleman-core/sitemap/queryable.rb', line 73 def where(constraints_hash) selector_hash = constraints_hash.reject { |key, value| !key.is_a? Selector } symbol_hash = constraints_hash.reject { |key, value| key.is_a? Selector } symbol_hash.each do |attribute, value| selector = Selector.new(:attribute => attribute, :operator => 'equal') selector_hash.update({ selector => value }) end @where.merge! selector_hash self end |