Class: ActiveRecord::ConnectionAdapters::SalesforceAdapter

Inherits:
AbstractAdapter
  • Object
show all
Includes:
StringHelper
Defined in:
lib/asf_adapter.rb

Constant Summary collapse

MAX_BOXCAR_SIZE = 
200

Instance Attribute Summary collapse

Instance Method Summary collapse

Methods included from StringHelper

#column_nameize

Constructor Details

#initialize(connection, logger, config) ⇒ SalesforceAdapter

Returns a new instance of SalesforceAdapter.



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# File 'lib/asf_adapter.rb', line 125

def initialize(connection, logger, config)
  super(connection, logger)
  
  @connection_options = nil
  @config = config
  
  @entity_def_map = {}
  @keyprefix_to_entity_def_map = {}
  
  @command_boxcar = []
  @class_to_entity_map = {}
end

Instance Attribute Details

#batch_size ⇒ Object

Returns the value of attribute batch_size.



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# File 'lib/asf_adapter.rb', line 122

def batch_size
  @batch_size
end

#class_to_entity_map ⇒ Object (readonly)

Returns the value of attribute class_to_entity_map.



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# File 'lib/asf_adapter.rb', line 123

def class_to_entity_map
  @class_to_entity_map
end

#config ⇒ Object (readonly)

Returns the value of attribute config.



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# File 'lib/asf_adapter.rb', line 123

def config
  @config
end

#entity_def_map ⇒ Object (readonly)

Returns the value of attribute entity_def_map.



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# File 'lib/asf_adapter.rb', line 123

def entity_def_map
  @entity_def_map
end

#keyprefix_to_entity_def_map ⇒ Object (readonly)

Returns the value of attribute keyprefix_to_entity_def_map.



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# File 'lib/asf_adapter.rb', line 123

def keyprefix_to_entity_def_map
  @keyprefix_to_entity_def_map
end

Instance Method Details

#active? ⇒ Boolean

CONNECTION MANAGEMENT ====================================

Returns:

  • (Boolean) 


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# File 'lib/asf_adapter.rb', line 176

def active?
  true
end

#adapter_name ⇒ Object

:nodoc:



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# File 'lib/asf_adapter.rb', line 150

def adapter_name #:nodoc:
  'ActiveSalesforce'
end

#add_rows(entity_def, query_result, result, limit) ⇒ Object 



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# File 'lib/asf_adapter.rb', line 340

def add_rows(entity_def, query_result, result, limit)
  records = query_result[:records]
  records = [ records ] unless records.is_a?(Array)

  records.each do |record|
    row = {}
    
    record.each do |name, value| 
      if name != :type
        # Ids may be returned in an array with 2 duplicate entries...
        value = value[0] if name == :Id && value.is_a?(Array)
        
        column = entity_def.api_name_to_column[name.to_s]
        attribute_name = column.name
        
        if column.type == :boolean
          row[attribute_name] = (value.casecmp("true") == 0)
        else
          row[attribute_name] = value
        end
      end
    end  
    
    result << row
    
    break if result.size >= limit and limit != 0
  end
end

#begin_db_transaction ⇒ Object

Begins the transaction (and turns off auto-committing).



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# File 'lib/asf_adapter.rb', line 189

def begin_db_transaction()    
  log('Opening boxcar', 'begin_db_transaction()')
  @command_boxcar = []
end

#binding ⇒ Object 



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# File 'lib/asf_adapter.rb', line 145

def binding
  @connection
end

#check_result(result) ⇒ Object 



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# File 'lib/asf_adapter.rb', line 585

def check_result(result)
  result = [ result ] unless result.is_a?(Array)
  
  result.each do |r|
    raise ActiveSalesforce::ASFError.new(@logger, r[:errors], r[:errors][:message]) unless r[:success] == "true"
  end
  
  result
end

#class_from_entity_name(entity_name) ⇒ Object 



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# File 'lib/asf_adapter.rb', line 722

def class_from_entity_name(entity_name)
  entity_klass = @class_to_entity_map[entity_name.upcase]
  debug("Found matching class '#{entity_klass}' for entity '#{entity_name}'") if entity_klass
  
  entity_klass = entity_name.constantize unless entity_klass
  
  entity_klass
end

#column_names(table_name) ⇒ Object 



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# File 'lib/asf_adapter.rb', line 753

def column_names(table_name)
  columns(table_name).map { |column| column.name }
end

#columns(table_name, name = nil) ⇒ Object 



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# File 'lib/asf_adapter.rb', line 716

def columns(table_name, name = nil)
  table_name, columns, entity_def = lookup(table_name)
  entity_def.columns
end

#commit_db_transaction ⇒ Object

Commits the transaction (and turns on auto-committing).



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# File 'lib/asf_adapter.rb', line 233

def commit_db_transaction()   
  log("Committing boxcar with #{@command_boxcar.length} commands", 'commit_db_transaction()')
  
  previous_command = nil
  commands = []
  
  @command_boxcar.each do |command|
    if commands.length >= MAX_BOXCAR_SIZE or (previous_command and (command.verb != previous_command.verb))
      send_commands(commands)
      
      commands = []
      previous_command = nil
    else
      commands << command
   previous_command = command
    end
  end
  
  # Finish off the partial boxcar
  send_commands(commands) unless commands.empty?
  
end

#configure_active_record(entity_def) ⇒ Object 



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# File 'lib/asf_adapter.rb', line 655

def configure_active_record(entity_def)
  entity_name = entity_def.name
  klass = class_from_entity_name(entity_name)

  class << klass
    def asf_augmented?
      true
    end
  end
  
  # Add support for SID-based authentication
  ActiveSalesforce::SessionIDAuthenticationFilter.register(klass)
  
  klass.set_inheritance_column nil unless entity_def.custom?
  klass.set_primary_key "id" 
  
  # Create relationships for any reference field
  entity_def.relationships.each do |relationship|
    referenceName = relationship.name
    unless self.respond_to? referenceName.to_sym or relationship.reference_to == "Profile" 
      reference_to = relationship.reference_to
      one_to_many = relationship.one_to_many
      foreign_key = relationship.foreign_key
      
      # DCHASMAN TODO Figure out how to handle polymorphic refs (e.g. Note.parent can refer to 
      # Account, Contact, Opportunity, Contract, Asset, Product2, <CustomObject1> ... <CustomObject(n)>
      if reference_to.is_a? Array
        debug("   Skipping unsupported polymophic one-to-#{one_to_many ? 'many' : 'one' } relationship '#{referenceName}' from #{klass} to [#{relationship.reference_to.join(', ')}] using #{foreign_key}")
        next 
      end
      
      # Handle references to custom objects
      reference_to = reference_to.chomp("__c").capitalize if reference_to.match(/__c$/)
      
      begin
        referenced_klass = class_from_entity_name(reference_to)
      rescue NameError => e
          # Automatically create a least a stub for the referenced entity
          debug("   Creating ActiveRecord stub for the referenced entity '#{reference_to}'")
          
          referenced_klass = klass.class_eval("::#{reference_to} = Class.new(ActiveRecord::Base)")
          
          # Automatically inherit the connection from the referencee
          referenced_klass.connection = klass.connection
      end
      
      if referenced_klass
        if one_to_many
          klass.has_many referenceName.to_sym, :class_name => referenced_klass.name, :foreign_key => foreign_key, :dependent => false
        else
          klass.belongs_to referenceName.to_sym, :class_name => referenced_klass.name, :foreign_key => foreign_key, :dependent => false
        end
        
        debug("   Created one-to-#{one_to_many ? 'many' : 'one' } relationship '#{referenceName}' from #{klass} to #{referenced_klass} using #{foreign_key}")
      end            
    end
  end
  
end

#create_sobject(entity_name, id, fields, null_fields = []) ⇒ Object 



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# File 'lib/asf_adapter.rb', line 732

def create_sobject(entity_name, id, fields, null_fields = [])
  sobj = []
  
  sobj << 'type { :xmlns => "urn:sobject.partner.soap.sforce.com" }' << entity_name
  sobj << 'Id { :xmlns => "urn:sobject.partner.soap.sforce.com" }' << id if id    
  
  # add any changed fields
  fieldValues = {}
  fields.each do | name, value |
    sobj << name.to_sym << value if value
  end
  
  # add null fields
  null_fields.each do | name, value |
			sobj << 'fieldsToNull { :xmlns => "urn:sobject.partner.soap.sforce.com" }' << name
		end
  
  [ :sObjects, sobj ]
end

#debug(msg) ⇒ Object 



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# File 'lib/asf_adapter.rb', line 773

def debug(msg)
  @logger.debug(msg) if @logger
end

#delete(sql, name = nil) ⇒ Object 



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

def delete(sql, name = nil) 
  log(sql, name) {
    # Extract the id
    match = sql.match(/WHERE\s+id\s*=\s*'(\w+)'/mi)
    
    if match 
      ids = [ match[1] ]
    else
      # Check for the form (id IN ('x', 'y'))
      match = sql.match(/WHERE\s+\(\s*id\s+IN\s*\((.+)\)\)/mi)[1]
      ids = match.scan(/\w+/)
    end
    
    ids_element = []        
    ids.each { |id| ids_element << :ids << id }
    
    @command_boxcar << ActiveSalesforce::BoxcarCommand::Delete.new(self, ids_element)
  }
end

#extract_sql_modifier(soql, modifier) ⇒ Object 



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# File 'lib/asf_adapter.rb', line 564

def extract_sql_modifier(soql, modifier)
    value = soql.match(/\s+#{modifier}\s+(\d+)/mi)
    if value            
      value = value[1].to_i
      soql.sub!(/\s+#{modifier}\s+\d+/mi, "")
    end
    
    value
end

#get_deleted(object_type, start_date, end_date, name = nil) ⇒ Object 



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# File 'lib/asf_adapter.rb', line 465

def get_deleted(object_type, start_date, end_date, name = nil)
  msg = "get_deleted(#{object_type}, #{start_date}, #{end_date})"
  log(msg, name) {
    get_deleted_element = []
    get_deleted_element << 'type { :xmlns => "urn:sobject.partner.soap.sforce.com" }' << object_type
    get_deleted_element << :startDate << start_date
    get_deleted_element << :endDate << end_date
    
    result = get_result(@connection.getDeleted(get_deleted_element), :getDeleted)
    
    ids = []
    result[:deletedRecords].each do |v| 
      ids << v[:id]
    end
    
    ids
  }      
end

#get_entity_def(entity_name) ⇒ Object 



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# File 'lib/asf_adapter.rb', line 596

def get_entity_def(entity_name)
  cached_entity_def = @entity_def_map[entity_name]
  
  if cached_entity_def
    # Check for the loss of asf AR setup 
    entity_klass = class_from_entity_name(entity_name)
    
    configure_active_record(cached_entity_def) unless entity_klass.respond_to?(:asf_augmented?)
    
    return cached_entity_def 
  end
  
  cached_columns = []
  cached_relationships = []
  
  begin
    metadata = get_result(@connection.describeSObject(:sObjectType => entity_name), :describeSObject)
    custom = false
  rescue ActiveSalesforce::ASFError => e
    # Fallback and see if we can find a custom object with this name
    debug("   Unable to find medata for '#{entity_name}', falling back to custom object name #{entity_name + "__c"}")
    
    metadata = get_result(@connection.describeSObject(:sObjectType => entity_name + "__c"), :describeSObject)
    custom = true
  end
  
  metadata[:fields].each do |field| 
    column = SalesforceColumn.new(field) 
    cached_columns << column
    
    cached_relationships << SalesforceRelationship.new(field, column) if field[:type] =~ /reference/mi
  end
  
  relationships = metadata[:childRelationships]
  if relationships
    relationships = [ relationships ] unless relationships.is_a? Array
    
    relationships.each do |relationship|  
      if relationship[:cascadeDelete] == "true"
        r = SalesforceRelationship.new(relationship)
        cached_relationships << r
      end
    end
  end
  
  key_prefix = metadata[:keyPrefix]
  
  entity_def = ActiveSalesforce::EntityDefinition.new(self, entity_name, entity_klass,
                                                      cached_columns, cached_relationships, custom, key_prefix)
  
  @entity_def_map[entity_name] = entity_def
  @keyprefix_to_entity_def_map[key_prefix] = entity_def
  
  configure_active_record(entity_def)
  
  entity_def
end

#get_fields(columns, names, values, access_check) ⇒ Object 



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# File 'lib/asf_adapter.rb', line 520

def get_fields(columns, names, values, access_check) 
  fields = {}
  names.each_with_index do | name, n | 
    value = values[n]
    
    if value
      column = columns[name]
      
      raise ActiveSalesforce::ASFError.new(@logger, "Column not found for #{name}!") unless column
      
      value.gsub!(/''/, "'") if value.is_a? String
      
      include_field = ((not value.empty?) and column.send(access_check))  
      
      if (include_field)           
        case column.type
          when :date 
            value = Time.parse(value + "Z").utc.strftime("%Y-%m-%d")
          when :datetime
            value = Time.parse(value + "Z").utc.strftime("%Y-%m-%dT%H:%M:%SZ")
        end
                    
        fields[column.api_name] = value
      end
    end
  end
  
  fields      
end

#get_null_fields(columns, names, values, access_check) ⇒ Object 



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# File 'lib/asf_adapter.rb', line 550

def get_null_fields(columns, names, values, access_check)
  	fields = {}
 	names.each_with_index do | name, n |
	value = values[n]

	if !value
		column = columns[name]
		fields[column.api_name] = nil if column.send(access_check)
	end
end

		fields
end

#get_result(response, method) ⇒ Object

Raises:

  • (ActiveSalesforce::ASFError) 


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# File 'lib/asf_adapter.rb', line 575

def get_result(response, method)
  responseName = (method.to_s + "Response").to_sym
  finalResponse = response[responseName]
  
  raise ActiveSalesforce::ASFError.new(@logger, response[:Fault][:faultstring], response.fault) unless finalResponse
  
  result = finalResponse[:result]
end

#get_updated(object_type, start_date, end_date, name = nil) ⇒ Object 



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# File 'lib/asf_adapter.rb', line 450

def get_updated(object_type, start_date, end_date, name = nil)
  msg = "get_updated(#{object_type}, #{start_date}, #{end_date})"
  log(msg, name) {
    get_updated_element = []
    get_updated_element << 'type { :xmlns => "urn:sobject.partner.soap.sforce.com" }' << object_type
    get_updated_element << :startDate << start_date
    get_updated_element << :endDate << end_date
    
    result = get_result(@connection.getUpdated(get_updated_element), :getUpdated)
    
    result[:ids]
  }
end

#get_user_info(name = nil) ⇒ Object 



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# File 'lib/asf_adapter.rb', line 485

def (name = nil)
  msg = "get_user_info()"
  log(msg, name) {
    get_result(@connection.getUserInfo([]), :getUserInfo)
  }      
end

#insert(sql, name = nil, pk = nil, id_value = nil, sequence_name = nil) ⇒ Object 



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# File 'lib/asf_adapter.rb', line 378

def insert(sql, name = nil, pk = nil, id_value = nil, sequence_name = nil)
  log(sql, name) {
    # Convert sql to sobject
    table_name, columns, entity_def = lookup(sql.match(/INSERT\s+INTO\s+(\w+)\s+/mi)[1])
    columns = entity_def.column_name_to_column
    
    # Extract array of column names
    names = sql.match(/\((.+)\)\s+VALUES/mi)[1].scan(/\w+/mi)
    
    # Extract arrays of values
    values = sql.match(/VALUES\s*\((.+)\)/mi)[1]
    values = values.scan(/(NULL|TRUE|FALSE|'(?:(?:[^']|'')*)'),*/mi).flatten
    values.map! { |v| v.first == "'" ? v.slice(1, v.length - 2) : v == "NULL" ? nil : v }
    
    fields = get_fields(columns, names, values, :createable)
    
    sobject = create_sobject(entity_def.api_name, nil, fields)
    
    # Track the id to be able to update it when the create() is actually executed
    id = String.new
    @command_boxcar << ActiveSalesforce::BoxcarCommand::Insert.new(self, sobject, id)
    
    id
  }
end

#lookup(raw_table_name) ⇒ Object 



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# File 'lib/asf_adapter.rb', line 758

def lookup(raw_table_name)
  table_name = raw_table_name.singularize
  
  # See if a table name to AR class mapping was registered
  klass = @class_to_entity_map[table_name.upcase]
  
  entity_name = klass ? raw_table_name : table_name.camelize
  
  entity_def = get_entity_def(entity_name)
  columns = entity_def.columns
  
  [table_name, columns, entity_def]
end

#quote(value, column = nil) ⇒ Object

QUOTING ==================================================



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# File 'lib/asf_adapter.rb', line 162

def quote(value, column = nil)
  case value
  when NilClass              then quoted_value = "NULL"
  when TrueClass             then quoted_value = "TRUE"
  when FalseClass            then quoted_value = "FALSE"
  when Float, Fixnum, Bignum then quoted_value = "'#{value.to_s}'"
  else                       quoted_value = super(value, column)
  end      
  
  quoted_value
end

#reconnect! ⇒ Object 



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# File 'lib/asf_adapter.rb', line 181

def reconnect!
  connect
end

#retrieve_field_values(object_type, fields, ids, name = nil) ⇒ Object 



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# File 'lib/asf_adapter.rb', line 493

def retrieve_field_values(object_type, fields, ids, name = nil) 
  msg = "retrieve(#{object_type}, [#{ids.to_a.join(', ')}])"
  log(msg, name) {
    retrieve_element = []      
    retrieve_element << :fieldList << fields.to_a.join(", ")
    retrieve_element << 'type { :xmlns => "urn:sobject.partner.soap.sforce.com" }' << object_type
    ids.to_a.each { |id| retrieve_element << :ids << id }
    
    result = get_result(@connection.retrieve(retrieve_element), :retrieve)
    
    result = [ result ] unless result.is_a?(Array)
    
    # Remove unwanted :type and normalize :Id if required
    field_values = []
    result.each do |v| 
      v = v.dup
      v.delete(:type)
      v[:Id] = v[:Id][0] if v[:Id].is_a? Array
      
      field_values << v
    end
    
    field_values
  }
end

#rollback_db_transaction ⇒ Object

Rolls back the transaction (and turns on auto-committing). Must be done if the transaction block raises an exception or returns false.



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# File 'lib/asf_adapter.rb', line 258

def rollback_db_transaction() 
  log('Rolling back boxcar', 'rollback_db_transaction()')
  @command_boxcar = []
end

#select_all(sql, name = nil) ⇒ Object

DATABASE STATEMENTS ======================================



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# File 'lib/asf_adapter.rb', line 266

def select_all(sql, name = nil) #:nodoc:
  raw_table_name = sql.match(/FROM (\w+)/mi)[1]
    table_name, columns, entity_def = lookup(raw_table_name)
    
    column_names = columns.map { |column| column.api_name }

    # Check for SELECT COUNT(*) FROM query
  
  # Rails 1.1
  selectCountMatch = sql.match(/SELECT\s+COUNT\(\*\)\s+AS\s+count_all\s+FROM/mi)
  
  # Rails 1.0
  selectCountMatch = sql.match(/SELECT\s+COUNT\(\*\)\s+FROM/mi) unless selectCountMatch 
  
  if selectCountMatch
    soql = "SELECT COUNT() FROM#{selectCountMatch.post_match}"
  else 
    if sql.match(/SELECT\s+\*\s+FROM/mi)
      # Always convert SELECT * to select all columns (required for the AR attributes mechanism to work correctly)
      soql = sql.sub(/SELECT .+ FROM/mi, "SELECT #{column_names.join(', ')} FROM")
    else
      soql = sql
    end
  end
  
  soql.sub!(/\s+FROM\s+\w+/mi, " FROM #{entity_def.api_name}")

    if selectCountMatch
      query_result = get_result(@connection.query(:queryString => soql), :query)
      return [{ :count => query_result[:size] }]
    end
    
    # Look for a LIMIT clause
  limit = extract_sql_modifier(soql, "LIMIT")
  limit = MAX_BOXCAR_SIZE unless limit
  
  # Look for an OFFSET clause
  offset = extract_sql_modifier(soql, "OFFSET")
  
  # Fixup column references to use api names
  columns = entity_def.column_name_to_column
  soql.gsub!(/((?:\w+\.)?\w+)(?=\s*(?:=|!=|<|>|<=|>=|like)\s*(?:'[^']*'|NULL|TRUE|FALSE))/mi) do |column_name| 
    # strip away any table alias
    column_name.sub!(/\w+\./, '')
    
    column = columns[column_name]
    raise ActiveSalesforce::ASFError.new(@logger, "Column not found for #{column_name}!") unless column
    
    column.api_name
  end
  
  # Update table name references
  soql.sub!(/#{raw_table_name}\./mi, "#{entity_def.api_name}.")

    @connection.batch_size = @batch_size if @batch_size
    @batch_size = nil
    
    query_result = get_result(@connection.query(:queryString => soql), :query)
    result = ActiveSalesforce::ResultArray.new(query_result[:size].to_i)
    return result unless query_result[:records]

    add_rows(entity_def, query_result, result, limit)
    
    while ((query_result[:done].casecmp("true") != 0) and (result.size < limit or limit == 0))
    # Now queryMore            
    locator = query_result[:queryLocator];
    query_result = get_result(@connection.queryMore(:queryLocator => locator), :queryMore)
    
    add_rows(entity_def, query_result, result, limit)
  end
  
  result
end

#select_one(sql, name = nil) ⇒ Object

:nodoc:



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# File 'lib/asf_adapter.rb', line 369

def select_one(sql, name = nil) #:nodoc:
  self.batch_size = 1
  
  result = select_all(sql, name)
  
  result.nil? ? nil : result.first
end

#send_commands(commands) ⇒ Object 



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# File 'lib/asf_adapter.rb', line 195

def send_commands(commands)
  # Send the boxcar'ed command set
  verb = commands[0].verb
  
  args = []
  commands.each do |command| 
    command.args.each { |arg| args << arg }
  end
  
  response = @connection.send(verb, args)
  
  result = get_result(response, verb)
  
  result = [ result ] unless result.is_a?(Array)
  
  errors = []
  result.each_with_index do |r, n|
    success = r[:success] == "true"
    
    # Give each command a chance to process its own result
    command = commands[n]
    command.after_execute(r)
    
    # Handle the set of failures
    errors << r[:errors] unless r[:success] == "true"
  end
  
  unless errors.empty?
    message = errors.join("\n")
    fault = (errors.map { |error| error[:message] }).join("\n")
    raise ActiveSalesforce::ASFError.new(@logger, message, fault) 
  end
  
  result
end

#set_class_for_entity(klass, entity_name) ⇒ Object 



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# File 'lib/asf_adapter.rb', line 139

def set_class_for_entity(klass, entity_name)
  debug("Setting @class_to_entity_map['#{entity_name.upcase}'] = #{klass} for connection #{self}")
  @class_to_entity_map[entity_name.upcase] = klass
end

#supports_migrations? ⇒ Boolean

:nodoc:

Returns:

  • (Boolean) 


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# File 'lib/asf_adapter.rb', line 155

def supports_migrations? #:nodoc:
  false
end

#update(sql, name = nil) ⇒ Object

:nodoc:



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# File 'lib/asf_adapter.rb', line 405

def update(sql, name = nil) #:nodoc:
  log(sql, name) {
    # Convert sql to sobject
    table_name, columns, entity_def = lookup(sql.match(/UPDATE\s+(\w+)\s+/mi)[1])
    columns = entity_def.column_name_to_column
    
    match = sql.match(/SET\s+(.+)\s+WHERE/mi)[1]
    names = match.scan(/(\w+)\s*=\s*(?:'|NULL|TRUE|FALSE)/mi).flatten
    
    values = match.scan(/=\s*(NULL|TRUE|FALSE|'(?:(?:[^']|'')*)'),*/mi).flatten
    values.map! { |v| v.first == "'" ? v.slice(1, v.length - 2) : v == "NULL" ? nil : v }
    
    fields = get_fields(columns, names, values, :updateable)
		  null_fields = get_null_fields(columns, names, values, :updateable)          
    
    id = sql.match(/WHERE\s+id\s*=\s*'(\w+)'/mi)[1]
    
    sobject = create_sobject(entity_def.api_name, id, fields, null_fields)
    
    @command_boxcar << ActiveSalesforce::BoxcarCommand::Update.new(self, sobject)
  }
end