Class: RelaxDB::ViewCreator

Inherits:
Object
  • Object
show all
Defined in:
lib/relaxdb/views.rb

Class Method Summary collapse

Class Method Details

.all(kls) ⇒ Object 



5
6
7
8
9
10
11
12
13
14
15
16
17
 
# File 'lib/relaxdb/views.rb', line 5

def self.all(kls)
  class_name = kls[0]
  map = "  function(doc) {        \n    var class_match = \#{kls_check kls}\n    if (class_match) {\n      emit(doc._id, 1);\n    }\n  }\n  QUERY\n        \n  View.new \"\#{class_name}_all\", map, \"_sum\"\nend\n"

.by_att_list(kls, *atts) ⇒ Object 



23
24
25
 
# File 'lib/relaxdb/views.rb', line 23

def self.by_att_list(kls, *atts)
  create_by_att_list 1, "_sum", kls, *atts
end

.create_by_att_list(emit_val, reduce_func, kls, *atts) ⇒ Object 



27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
 
# File 'lib/relaxdb/views.rb', line 27

def self.create_by_att_list emit_val, reduce_func, kls, *atts
  class_name = kls[0]
  key = atts.map { |a| "doc.#{a}" }.join(", ")
  key = atts.size > 1 ? key.sub(/^/, "[").sub(/$/, "]") : key
  prop_check = atts.map { |a| "doc.#{a} !== undefined" }.join(" && ")

  map = "  function(doc) {\n    var class_match = \#{kls_check kls}\n    if (class_match && \#{prop_check}) {\n      emit(\#{key}, \#{emit_val});\n    }\n  }\n  QUERY\n  \n  view_name = \"\#{class_name}_by_\" << atts.join(\"_and_\")\n  View.new view_name, map, reduce_func      \nend\n"

.docs_by_att_list(kls, *atts) ⇒ Object 



19
20
21
 
# File 'lib/relaxdb/views.rb', line 19

def self.docs_by_att_list(kls, *atts)
  create_by_att_list "doc", "_count", kls, *atts
end

.kls_check(kls) ⇒ Object 



46
47
48
49
 
# File 'lib/relaxdb/views.rb', line 46

def self.kls_check kls
  kls_names = kls.map{ |k| %Q("#{k}") }.join(",")
  "[#{kls_names}].indexOf(doc.relaxdb_class) >= 0;"
end