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, opts = {}) ⇒ Query
constructor
A new instance of Query.
- #last ⇒ Object
- #limit(number) ⇒ Object
- #offset(number) ⇒ Object
- #opts(new_opts) ⇒ Object
- #order_by(field) ⇒ Object
- #where(constraints_hash) ⇒ Object
Constructor Details
#initialize(model, opts = {}) ⇒ Query
Returns a new instance of Query.
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# 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 |
Instance Method Details
#all ⇒ Object
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# 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 ⇒ Object
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# File 'lib/middleman-core/sitemap/queryable.rb', line 105 def first all.first end |
#last ⇒ Object
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# File 'lib/middleman-core/sitemap/queryable.rb', line 109 def last all.last end |
#limit(number) ⇒ Object
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# File 'lib/middleman-core/sitemap/queryable.rb', line 101 def limit(number) Query.new @model, opts(limit: number) end |
#offset(number) ⇒ Object
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# File 'lib/middleman-core/sitemap/queryable.rb', line 97 def offset(number) Query.new @model, opts(offset: number) end |
#opts(new_opts) ⇒ Object
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# 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) ⇒ Object
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# 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) ⇒ Object
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# 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 |