Module: Couchdb

Defined in:
lib/leanback.rb

Class Attribute Summary collapse

Class Method Summary collapse

Class Attribute Details

.address ⇒ Object

Returns the value of attribute address.



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# File 'lib/leanback.rb', line 611

def address
  @address
end

.port ⇒ Object

Returns the value of attribute port.



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# File 'lib/leanback.rb', line 612

def port
  @port
end

Class Method Details

.add_counter(options, auth_session = "") ⇒ Object

add a counter method to the database this creates a count method that counts documents by key



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# File 'lib/leanback.rb', line 457

def self.add_counter(options,auth_session = "")
 set_address 
 db_name = options[:database]
 key = options[:key] 
 design_doc_name = key + '_counter'
 
 view ='{
 "language" : "javascript",
 "views" :{
    "count_'+key+'" : {
      "map" : "function(doc){ if(doc.'+key+') emit(doc.'+key+',null);}", "reduce": "_count"   
    }
 }
}'

 begin  
  response = RestClient.put 'http://' + @address + ':' + @port + '/' + db_name + '/_design/' + design_doc_name, view, {:cookies => {"AuthSession" => auth_session}}
 rescue => e
    hash = Yajl::Parser.parse(e.response.to_s)
    raise CouchdbException.new(hash), "CouchDB: Error - " + hash.values[0] + ". Reason - "  + hash.values[1]
 end
end

.add_finder(options, auth_session = "") ⇒ Object

add a finder method to the database this creates a find by key method



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# File 'lib/leanback.rb', line 376

def self.add_finder(options,auth_session = "")
 set_address 
 db_name = options[:database]
 key = options[:key] 
 design_doc_name = key + '_finder'
 
 view ='{
 "language" : "javascript",
 "views" :{
    "find_by_'+key+'" : {
      "map" : "function(doc){ if(doc.'+key+') emit(doc.'+key+',doc);}"
    }
 }
}'

 begin  
  response = RestClient.put 'http://' + @address + ':' + @port + '/' + db_name + '/_design/' + design_doc_name, view, {:cookies => {"AuthSession" => auth_session}}
 rescue => e
    hash = Yajl::Parser.parse(e.response.to_s)
    raise CouchdbException.new(hash), "CouchDB: Error - " + hash.values[0] + ". Reason - "  + hash.values[1]
 end
end

.add_multiple_counter(options, auth_session = "") ⇒ Object

add a multiple counter method to the database this creates a count by keys method



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# File 'lib/leanback.rb', line 429

def self.add_multiple_counter(options,auth_session = "")
 set_address 
 db_name = options[:database]
 keys = options[:keys]
 view_name = keys.join("_")
 key = keys.join(",doc.")
 condition = keys.join(" && doc.")
 design_doc_name = view_name + '_keys_counter'

 view = '{
 "language" : "javascript",
 "views" :{
    "count_by_keys_'+view_name+'" : {
      "map" : "function(doc){ if(doc.'+condition+') emit([doc.'+key+'],null);}", "reduce": "_count"
    }
 }
}' 

 begin  
  response = RestClient.put 'http://' + @address + ':' + @port + '/' + db_name + '/_design/' + design_doc_name, view, {:cookies => {"AuthSession" => auth_session}}
 rescue => e
    hash = Yajl::Parser.parse(e.response.to_s)
    raise CouchdbException.new(hash), "CouchDB: Error - " + hash.values[0] + ". Reason - "  + hash.values[1]
 end
end

.add_multiple_finder(options, auth_session = "") ⇒ Object

add a multiple finder method to the database this creates a find by keys method



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# File 'lib/leanback.rb', line 401

def self.add_multiple_finder(options,auth_session = "")
 set_address 
 db_name = options[:database]
 keys = options[:keys]
 view_name = keys.join("_")
 key = keys.join(",doc.")
 condition = keys.join(" && doc.")
 design_doc_name = view_name + '_keys_finder'

 view = '{
 "language" : "javascript",
 "views" :{
    "find_by_keys_'+view_name+'" : {
      "map" : "function(doc){ if(doc.'+condition+') emit([doc.'+key+'],doc);}"
    }
 }
}' 

 begin  
  response = RestClient.put 'http://' + @address + ':' + @port + '/' + db_name + '/_design/' + design_doc_name, view, {:cookies => {"AuthSession" => auth_session}}
 rescue => e
    hash = Yajl::Parser.parse(e.response.to_s)
    raise CouchdbException.new(hash), "CouchDB: Error - " + hash.values[0] + ". Reason - "  + hash.values[1]
 end
end

.add_user(user, auth_session = "") ⇒ Object

add a new user



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# File 'lib/leanback.rb', line 30

def self.add_user(user, auth_session="")
  o =  [('a'..'z'),('A'..'Z')].map{|i| i.to_a}.flatten;  
  salt  =  (0..50).map{ o[rand(o.length)]  }.join; 
  new_user = {:username => user[:username], :password => user[:password], :roles => user[:roles], :salt => salt}
  create_user(new_user,auth_session)
end

.all(auth_session = "") ⇒ Object

return a list of all databases



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# File 'lib/leanback.rb', line 237

def self.all(auth_session = "")
     set_address
      begin
        response = RestClient.get 'http://' + @address + ':' + @port + '/_all_dbs', {:cookies => {"AuthSession" => auth_session}}
        hash = Yajl::Parser.parse(response.to_str)
      rescue => e
          raise e
      end
end

.change_password(username, new_password, auth_session = "") ⇒ Object

change non-admin user password



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# File 'lib/leanback.rb', line 20

def self.change_password(username, new_password,auth_session = "")
 salty = salt()
 password_sha = Digest::SHA1.hexdigest(new_password + salty) 
 user_id = 'org.couchdb.user:' + username
 data = {"salt" => salty,"password_sha" => password_sha}
 doc = { :database => '_users', :doc_id => user_id, :data => data}   
 update_doc doc,auth_session
end

.count(options, auth_session = "") ⇒ Object

count by key



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# File 'lib/leanback.rb', line 481

def self.count(options,auth_session = "")
 set_address 
 db_name = options[:database]
 index =  options.keys[1].to_s
 search_term = options.values[1]
 design_doc_name = index + '_counter'
 view_name = 'count_' + index
 
 begin 
  view = { :database => db_name, :design_doc => design_doc_name, :view => view_name}
  docs = find view,auth_session,search_term
 rescue CouchdbException => e
    #add a counter index if one doesn't already exist in the database
    #then count_by_key
    add_counter({:database => db_name, :key => index},auth_session)
    docs = find view,auth_session,search_term
 end
  count = docs[0]
 return count.to_i
end

.count_by_keys(options, auth_session = "", params = {}) ⇒ Object

count by keys example: hash = {:firstname =>‘john’, :gender => ‘male’ } Couchdb.count_by_keys(=> ‘contacts’, :keys => hash,auth_session)



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# File 'lib/leanback.rb', line 506

def self.count_by_keys(options,auth_session = "", params = {})
 set_address
 db_name = options[:database]
 keys = []
 search_term = []
 hash = options[:keys]

 hash.each do |k,v|
  keys << k
  search_term << v
 end
 index = keys.join("_")
 design_doc_name = index + '_keys_counter'
 view_name = 'count_by_keys_' + index
 params[:startkey] = search_term
 params[:endkey] = search_term
 
 begin 
  view = { :database => db_name, :design_doc => design_doc_name, :view => view_name}
  docs = find view,auth_session,key=nil,params
 rescue CouchdbException => e
    #add a finder/index if one doesn't already exist in the database
    #then find_by_keys
    add_multiple_counter({:database => db_name, :keys => keys},auth_session)
    docs = find view,auth_session,key=nil,params
 end
 count = docs[0]
 return count.to_i
end

.create(database_name, auth_session = "") ⇒ Object

create a database if one with the same name doesn’t already exist



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# File 'lib/leanback.rb', line 213

def self.create(database_name,auth_session = "")
     set_address
     begin
       response = RestClient.put 'http://' + @address + ':' + @port + '/' + URI.escape(database_name), {:content_type => :json},{:cookies => {"AuthSession" => auth_session}}
       hash = Yajl::Parser.parse(response.to_str)
     rescue => e
       hash = Yajl::Parser.parse(e.response.to_s)
       raise CouchdbException.new(hash), "CouchDB: Error - " + hash.values[0] + ". Reason - "  + hash.values[1]
     end
end

.create_design(doc, auth_session = "") ⇒ Object

create a design document with views



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# File 'lib/leanback.rb', line 324

def self.create_design(doc,auth_session = "")
 set_address
 db_name = doc[:database]
 design_doc_name = doc[:design_doc]
 json_doc_name = doc[:json_doc]

 begin
  #bind json doc to string
  message_template = ERB.new File.new(json_doc_name).read
  str = message_template.result(binding)
 rescue => e
   raise e
 end

  begin
   
   response = RestClient.put 'http://' + @address + ':' + @port + '/' + db_name + '/_design/' + design_doc_name, str, {:cookies => {"AuthSession" => auth_session}}
    hash = Yajl::Parser.parse(response.to_str)
  rescue => e
    hash = Yajl::Parser.parse(e.response.to_s)
    raise CouchdbException.new(hash), "CouchDB: Error - " + hash.values[0] + ". Reason - "  + hash.values[1]
  end
end

.create_doc(doc, auth_session = "") ⇒ Object

create a document



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# File 'lib/leanback.rb', line 142

def self.create_doc( doc,auth_session = "")  
    db_name =  doc[:database]
    doc_id = doc[:doc_id]
    data = doc[:data]
    json_data = Yajl::Encoder.encode(data)
    set_address
    begin
       response = RestClient.put 'http://' + @address + ':' + @port + '/' + URI.escape(db_name) + '/' + URI.escape(doc_id),json_data, {:cookies => {"AuthSession" => auth_session}}
       hash = Yajl::Parser.parse(response.to_str)
     rescue => e
       hash = Yajl::Parser.parse(e.response.to_s)
       raise CouchdbException.new(hash), "CouchDB: Error - " + hash.values[0] + ". Reason - "  + hash.values[1]
     end
end

.create_user(user, auth_session = "") ⇒ Object

create a new user



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# File 'lib/leanback.rb', line 38

def self.create_user(user,auth_session= "")
  password_sha = Digest::SHA1.hexdigest(user[:password] + user[:salt])              
  
  user_hash = { :type => "user",
                   :name => user[:username],
                   :password_sha => password_sha,
                   :salt => user[:salt],
                   :roles => user[:roles]
                  }
   
   str = Yajl::Encoder.encode(user_hash)
   set_address
   begin
    response = RestClient.put 'http://' + @address + ':' + @port + '/_users/org.couchdb.user:' + URI.escape(user[:username]), str,{:cookies => {"AuthSession" => auth_session}}
    hash = Yajl::Parser.parse(response.to_str)
  rescue => e
    hash = Yajl::Parser.parse(e.response.to_s)
    raise CouchdbException.new(hash), "CouchDB: Error - " + hash.values[0] + ". Reason - "  + hash.values[1]
  end 

end

.delete(database_name, auth_session = "") ⇒ Object

delete a database



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# File 'lib/leanback.rb', line 225

def self.delete(database_name,auth_session = "")
     set_address
      begin
        response = RestClient.delete 'http://' + @address + ':' + @port + '/' + URI.escape(database_name), {:cookies => {"AuthSession" => auth_session}}
        hash = Yajl::Parser.parse(response.to_str)
      rescue => e
        hash = Yajl::Parser.parse(e.response.to_s)
        raise CouchdbException.new(hash), "CouchDB: Error - " + hash.values[0] + ". Reason - "  + hash.values[1]
      end 
end

.delete_config(data, auth_session = "") ⇒ Object 



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# File 'lib/leanback.rb', line 114

def self.delete_config(data,auth_session = "") 
  section = data[:section]
  key = data[:key] 
  set_address
  begin
   response = RestClient.delete 'http://' + @address + ':' + @port + '/_config/' + URI.escape(section) + '/' + URI.escape(key), {:cookies => {"AuthSession" => auth_session}}
   hash = Yajl::Parser.parse(response.to_str)
  rescue => e
   hash = Yajl::Parser.parse(e.response.to_s)
   raise CouchdbException.new(hash), "CouchDB: Error - " + hash.values[0] + ". Reason - "  + hash.values[1]
 end
end

.delete_doc(doc, auth_session = "") ⇒ Object

delete document



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# File 'lib/leanback.rb', line 186

def self.delete_doc(doc,auth_session = "")  
  db_name = doc[:database]
  doc_id = doc[:doc_id]
  doc = {:database => db_name, :doc_id => doc_id}
  hash = Couchdb.view doc,auth_session
  doc = {:database => db_name, :doc_id => doc_id, :rev => hash["_rev"]}
  delete_rev(doc,auth_session)
end

.delete_rev(doc, auth_session = "") ⇒ Object

delete a doc by rev#



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# File 'lib/leanback.rb', line 197

def self.delete_rev(doc,auth_session = "")
  db_name = doc[:database]
  doc_id = doc[:doc_id]
  rev = doc[:rev]
  set_address
  begin 
   response = RestClient.delete 'http://' + @address + ':' + @port + '/' + URI.escape(db_name)  + '/' + URI.escape(doc_id) + '?rev=' + rev, {:cookies => {"AuthSession" => auth_session}}
     hash = Yajl::Parser.parse(response.to_str)
   rescue => e
    hash = Yajl::Parser.parse(e.response.to_s)
    raise CouchdbException.new(hash), "CouchDB: Error - " + hash.values[0] + ". Reason - "  + hash.values[1]
   end
end

.docs_from(database_name, auth_session = "") ⇒ Object

return a list of all docs in the database



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# File 'lib/leanback.rb', line 591

def self.docs_from(database_name,auth_session = "")
  set_address
  begin
         response = RestClient.get 'http://' + @address + ':' + @port + '/' + URI.escape(database_name) + '/_all_docs?include_docs=true',{:cookies => {"AuthSession" => auth_session}}
         hash = Yajl::Parser.parse(response.to_str)
         rows = hash["rows"]
         count = 0 
         rows.each do |row|
            rows[count] = row["doc"]
            count += 1
          end
        return rows
  rescue => e
     hash = Yajl::Parser.parse(e.response.to_s)
     raise CouchdbException.new(hash), "CouchDB: Error - " + hash.values[0] + ". Reason - "  + hash.values[1]
  end  
end

.edit_doc(doc, auth_session = "") ⇒ Object

edit a document



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# File 'lib/leanback.rb', line 158

def self.edit_doc(doc,auth_session = "")
    db_name = doc[:database]
    doc_id = doc[:doc_id]
    data = doc[:data]
    json_data = Yajl::Encoder.encode(data)
    set_address
    begin
      response = RestClient.put 'http://' + @address + ':' + @port + '/' + URI.escape(db_name) + '/' + URI.escape(doc_id), json_data, {:cookies => {"AuthSession" => auth_session}}
       hash = Yajl::Parser.parse(response.to_str)
     rescue => e
       hash = Yajl::Parser.parse(e.response.to_s)
       raise CouchdbException.new(hash), "CouchDB: Error - " + hash.values[0] + ". Reason - "  + hash.values[1]
    end
end

.find(doc, auth_session = "", key = nil, options = {}) ⇒ Object

query a permanent view



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# File 'lib/leanback.rb', line 295

def self.find(doc,auth_session = "", key=nil, options = {})
 set_address
 db_name = doc[:database]
 design_doc_name = doc[:design_doc]
 view_name = doc[:view]
 params = get_params(options)
   
   begin
    if key == nil
     response = RestClient.get 'http://' + @address + ':' + @port + '/' + db_name + '/_design/' + design_doc_name + '/_view/' + view_name + '?' + URI.escape(params),{:cookies => {"AuthSession" => auth_session}}
    else
      key = URI.escape('?key="' + key + '"')
      response = RestClient.get 'http://' + @address + ':' + @port + '/' + db_name + '/_design/' + design_doc_name + '/_view/' + view_name + key + '&' + URI.escape(params) ,{:cookies => {"AuthSession" => auth_session}}
    end
     hash = Yajl::Parser.parse(response.to_str)
     rows = hash["rows"]
     count = 0
     rows.each do |row|
      rows[count] = row["value"]
      count += 1  
     end
     return rows
   rescue => e
    hash = Yajl::Parser.parse(e.response.to_s)
    raise CouchdbException.new(hash), "CouchDB: Error - " + hash.values[0] + ". Reason - "  + hash.values[1]
   end
end

.find_by(options, auth_session = "", params = {}) ⇒ Object

find by key



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# File 'lib/leanback.rb', line 537

def self.find_by(options,auth_session = "", params = {})
 set_address 
 db_name = options[:database]
 index =  options.keys[1].to_s
 search_term = options.values[1]
 design_doc_name = index + '_finder'
 view_name = 'find_by_' + index
 
 begin 
  view = { :database => db_name, :design_doc => design_doc_name, :view => view_name}
  docs = find view,auth_session,search_term,params
 rescue CouchdbException => e
    #add a finder/index if one doesn't already exist in the database
    #then find_by_key
    add_finder({:database => db_name, :key => index},auth_session)
    docs = find view,auth_session,search_term,params
 end
 return docs
end

.find_by_keys(options, auth_session = "", params = {}) ⇒ Object

find by keys example: hash = {:firstname =>‘john’, :gender => ‘male’ } Couchdb.find_by_keys(=> ‘contacts’, :keys => hash,auth_session)



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# File 'lib/leanback.rb', line 561

def self.find_by_keys(options,auth_session = "", params = {})
 set_address
 db_name = options[:database]
 keys = []
 search_term = []
 hash = options[:keys]

 hash.each do |k,v|
  keys << k
  search_term << v
 end
 index = keys.join("_")
 design_doc_name = index + '_keys_finder'
 view_name = 'find_by_keys_' + index
 params[:startkey] = search_term
 params[:endkey] = search_term
 
 begin 
  view = { :database => db_name, :design_doc => design_doc_name, :view => view_name}
  docs = find view,auth_session,key=nil,params
 rescue CouchdbException => e
    #add a finder/index if one doesn't already exist in the database
    #then find_by_keys
    add_multiple_finder({:database => db_name, :keys => keys},auth_session)
    docs = find view,auth_session,key=nil,params
 end
 return docs
end

.find_on_fly(doc, auth_session = "", key = nil, options = {}) ⇒ Object

Query view, create view on fly if it dosen’t already exist



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# File 'lib/leanback.rb', line 349

def self.find_on_fly(doc,auth_session = "",key = nil, options = {})  
  db_name = doc[:database]
  design_doc = doc[:design_doc]
  view = doc[:view]
  json_doc = doc[:json_doc]

  begin 
     if( key == nil)
      docs = find({:database => db_name, :design_doc => design_doc, :view => view},auth_session,key=nil,options) 
     else
      docs = find({:database => db_name, :design_doc => design_doc, :view => view},auth_session,key,options) 
     end
    rescue CouchdbException => e
       document = { :database => db_name, :design_doc => design_doc, :json_doc => json_doc}
       create_design document,auth_session
       if( key == nil)
         docs = find({:database => db_name, :design_doc => design_doc, :view => view},auth_session,key=nil,options) 
       else
         docs = find({:database => db_name, :design_doc => design_doc, :view => view},auth_session,key,options) 
       end
     end
   return docs
end

.get_config(data, auth_session = "") ⇒ Object 



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# File 'lib/leanback.rb', line 128

def self.get_config(data,auth_session = "") 
  section = data[:section]
  key = data[:key] 
  set_address
  begin
   response = RestClient.get 'http://' + @address + ':' + @port + '/_config/' + URI.escape(section) + '/' + URI.escape(key), {:cookies => {"AuthSession" => auth_session}}
   hash = Yajl::Parser.parse(response.to_str)
  rescue => e
   hash = Yajl::Parser.parse(e.response.to_s)
   raise CouchdbException.new(hash), "CouchDB: Error - " + hash.values[0] + ". Reason - "  + hash.values[1]
 end
end

.get_params(options) ⇒ Object 



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# File 'lib/leanback.rb', line 261

def self.get_params(options)
 params = ""
 if options.has_key?(:startkey)
  if options[:startkey].is_a? String
   params = 'startkey="' + options[:startkey] + '"'
  else
   params = 'startkey=' + options[:startkey].to_s # for complex keys
  end
 end
 if options.has_key?(:endkey)
  if options[:endkey].is_a? String
   params = params + '&endkey="' + options[:endkey] + '"'
  else
   params = params + '&endkey=' + options[:endkey].to_s  #for complex keys
  end
 end

 if options.has_key?(:limit)
  params = params + "&" + "limit=" + options[:limit].to_s
 end

 if options.has_key?(:skip)
  params = params + "&" + "skip=" + options[:skip].to_s
 end

  if options.has_key?(:descending)
  params = params + "&" + "descending=true"
 end

 return params
end

.get_security(db_name, auth_session = "") ⇒ Object

get security object



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# File 'lib/leanback.rb', line 73

def self.get_security(db_name, auth_session="")
 set_address
 begin
  response = RestClient.get 'http://' + @address + ':' + @port + '/' + URI.escape(db_name) + '/_security/', {:cookies => {"AuthSession" => auth_session}}
  hash = Yajl::Parser.parse(response.to_str)
  rescue => e
  hash = Yajl::Parser.parse(e.response.to_s)
  raise CouchdbException.new(hash), "CouchDB: Error - " + hash.values[0] + ". Reason - "  + hash.values[1]
 end 
end

.login(username, password) ⇒ Object

login to couchdb



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# File 'lib/leanback.rb', line 86

def self.(username, password)
  set_address
  data = 'name=' + username + '&password=' + password
  begin
   response = RestClient.post 'http://' + @address + ':' + @port + '/_session/', data, {:content_type => 'application/x-www-form-urlencoded'}
   response.cookies
  rescue => e
   hash = Yajl::Parser.parse(e.response.to_s)
   raise CouchdbException.new(hash), "CouchDB: Error - " + hash.values[0] + ". Reason - "  + hash.values[1]
 end
end

.salt ⇒ Object 



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# File 'lib/leanback.rb', line 14

def self.salt
 o =  [('a'..'z'),('A'..'Z')].map{|i| i.to_a}.flatten;  
 salt  =  (0..50).map{ o[rand(o.length)]  }.join; 
end

.set_address ⇒ Object 



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# File 'lib/leanback.rb', line 614

def set_address()
 if @address == nil 
    @address = '127.0.0.1'
 end
 if @port == nil
    @port = '5984'
 end 
end

.set_config(data, auth_session = "") ⇒ Object

couchdb configuration api



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# File 'lib/leanback.rb', line 99

def self.set_config(data,auth_session = "") 
  section = data[:section]
  key = data[:key] 
  value = data[:value]
  json_data = Yajl::Encoder.encode(value)
  set_address
  begin
   response = RestClient.put 'http://' + @address + ':' + @port + '/_config/' + URI.escape(section) + '/' + URI.escape(key),json_data, {:cookies => {"AuthSession" => auth_session}}
   hash = Yajl::Parser.parse(response.to_str)
  rescue => e
   hash = Yajl::Parser.parse(e.response.to_s)
   raise CouchdbException.new(hash), "CouchDB: Error - " + hash.values[0] + ". Reason - "  + hash.values[1]
 end
end

.set_security(db_name, data, auth_session = "") ⇒ Object

add security object



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# File 'lib/leanback.rb', line 61

def self.set_security(db_name, data,auth_session="")
  security_data = Yajl::Encoder.encode(data)
  set_address
  begin
  response = RestClient.put 'http://' + @address + ':' + @port + '/' + URI.escape(db_name) + '/_security/',security_data, {:cookies => {"AuthSession" => auth_session}}
  hash = Yajl::Parser.parse(response.to_str)
  rescue => e
   hash = Yajl::Parser.parse(e.response.to_s)
   raise CouchdbException.new(hash), "CouchDB: Error - " + hash.values[0] + ". Reason - "  + hash.values[1]
  end 
end

.update_doc(doc, auth_session = "") ⇒ Object

update a doc



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# File 'lib/leanback.rb', line 174

def self.update_doc(doc,auth_session = "")
     db_name = doc[:database]
     doc_id = doc[:doc_id]
     data = doc[:data]
     doc = {:database => db_name, :doc_id => doc_id}
     options = Couchdb.view doc,auth_session 
     options = options.merge(data)
     doc = {:database => db_name, :doc_id => doc_id, :data => options}
     edit_doc doc,auth_session
end

.view(doc, auth_session = "") ⇒ Object

view a document



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# File 'lib/leanback.rb', line 248

def self.view(doc,auth_session = "")
 set_address
 db_name = doc[:database]
 doc_id = doc[:doc_id]
  begin
   response = RestClient.get 'http://' + @address + ':' + @port + '/' + db_name + '/' + doc_id,{:cookies => {"AuthSession" => auth_session}}
   hash = Yajl::Parser.parse(response.to_str)
  rescue => e
   hash = Yajl::Parser.parse(e.response.to_s)
   raise CouchdbException.new(hash), "CouchDB: Error - " + hash.values[0] + ". Reason - "  + hash.values[1]
 end 
end