Module: EasySparql::ClassMethods

Defined in:
lib/easy_sparql.rb

Instance Method Summary collapse

Instance Method Details

#count_all_by_sparql(query) ⇒ Object 



49
50
51
52
 
# File 'lib/easy_sparql.rb', line 49

def count_all_by_sparql(query)
  results = query.execute
  results.empty? ? 0 : query.execute.first[:count].to_i
end

#find_all_by_sparql(query, params = {}) ⇒ Object 



54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
 
# File 'lib/easy_sparql.rb', line 54

def find_all_by_sparql(query, params = {})
  to_map = query.values.map { |symbol, var| symbol }
  results = query.execute
  objects = {}
  results.each do |result|
    if params[:key] and result[params[:key]]
      key = result[params[:key]]
    else
      key = SecureRandom.uuid
    end
    object = (objects.has_key? key) ? objects[key] : new
    to_map.each do |symbol|
      unless symbol == params[:key]
        value = result[symbol]
        if value and value.literal?
          value = value.object
        end
        setter = (symbol.to_s + '=').to_sym
        old_val = object.send(symbol)
        if old_val and old_val.kind_of? Array
          new_val = (old_val + [value])
        elsif old_val
          new_val = [old_val, value]
        else
          new_val = value
        end
        object.send(setter, new_val)
      end
    end
    objects[key] = object
  end
  objects.values
end

#find_by_sparql(query) ⇒ Object 



88
89
90
 
# File 'lib/easy_sparql.rb', line 88

def find_by_sparql(query)
  find_all_by_sparql(query)[0]
end

#query ⇒ Object 



45
46
47
 
# File 'lib/easy_sparql.rb', line 45

def query
  EasySparql.query
end