Class: Databasedotcom::Sobject::Sobject

Inherits:
Object
  • Object
show all
Extended by:
ActiveModel::Naming
Defined in:
lib/databasedotcom/sobject/sobject.rb

Overview

Parent class of dynamically created sobject types. Interacts with Force.com through a Client object that is passed in during materialization.

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(attrs = {}) ⇒ Sobject

Returns a new Sobject. The default values for all attributes are set based on its description.



14
15
16
17
18
19
20
21
22
23
24
25
26
 
# File 'lib/databasedotcom/sobject/sobject.rb', line 14

def initialize(attrs = {})
  super()
  self.class.description["fields"].each do |field|
    if field['type'] =~ /(picklist|multipicklist)/ && picklist_option = field['picklistValues'].find { |p| p['defaultValue'] }
      self.send("#{field["name"]}=", picklist_option["value"])
    elsif field['type'] =~ /boolean/
      self.send("#{field["name"]}=", field["defaultValue"])
    else
      self.send("#{field["name"]}=", field["defaultValueFormula"])
    end
  end
  self.attributes=(attrs)
end

Class Method Details

.all ⇒ Object

Returns all records of type self as instances.

client.materialize("Car")
Car.all    #=>   [#<Car @Id="1", ...>, #<Car @Id="2", ...>, #<Car @Id="3", ...>, ...]



225
226
227
 
# File 'lib/databasedotcom/sobject/sobject.rb', line 225

def self.all
  self.client.query("SELECT #{self.field_list} FROM #{self.sobject_name}")
end

.attributes ⇒ Object

Returns an Array of attribute names that this Sobject has.

client.materialize("Car")
Car.attributes               #=> ["Id", "Name", "Color", "Year"]



157
158
159
 
# File 'lib/databasedotcom/sobject/sobject.rb', line 157

def self.attributes
  self.description["fields"].collect { |f| [f["name"], f["relationshipName"]] }.flatten.compact
end

.coerce_params(params) ⇒ Object

Coerce values submitted from a Rails form to the values expected by the database returns a new hash with updated values



317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
 
# File 'lib/databasedotcom/sobject/sobject.rb', line 317

def self.coerce_params(params)
  params.each do |attr, value|
    case self.field_type(attr)
      when "boolean"
        params[attr] = value.is_a?(String) ? value.to_i != 0 : value
      when "currency", "percent", "double"
        value = value.gsub(/[^-0-9.0-9]/, '').to_f if value.respond_to?(:gsub)
        params[attr] = value.to_f
      when "date"
        params[attr] = Date.parse(value) rescue Date.today
      when "datetime"
        params[attr] = DateTime.parse(value) rescue DateTime.now
    end
  end
end

.count ⇒ Object

Get the total number of records



265
266
267
 
# File 'lib/databasedotcom/sobject/sobject.rb', line 265

def self.count
  self.client.query("SELECT COUNT() FROM #{self.sobject_name}").total_size
end

.create(object_attributes) ⇒ Object

Delegates to Client.create with arguments object_attributes and self



311
312
313
 
# File 'lib/databasedotcom/sobject/sobject.rb', line 311

def self.create(object_attributes)
  self.client.create(self, object_attributes)
end

.createable?(attr_name) ⇒ Boolean

Returns true if the attribute attr_name can be created. Raises ArgumentError if attribute does not exist.

Returns:

  • (Boolean) 


209
210
211
 
# File 'lib/databasedotcom/sobject/sobject.rb', line 209

def self.createable?(attr_name)
  self.type_map_attr(attr_name, :createable?)
end

.delete(record_id) ⇒ Object

Delegates to Client.delete with arguments record_id and self



260
261
262
 
# File 'lib/databasedotcom/sobject/sobject.rb', line 260

def self.delete(record_id)
  self.client.delete(self.sobject_name, record_id)
end

.field_type(attr_name) ⇒ Object

Returns the Force.com type of the attribute attr_name. Raises ArgumentError if attribute does not exist.

client.materialize("Car")
Car.field_type("Color")    #=> "string"



189
190
191
 
# File 'lib/databasedotcom/sobject/sobject.rb', line 189

def self.field_type(attr_name)
  self.type_map_attr(attr_name, :type)
end

.find(record_id) ⇒ Object

Delegates to Client.find with arguments record_id and self

client.materialize("Car")
Car.find("rid")    #=>   #<Car @Id="rid", ...>



217
218
219
 
# File 'lib/databasedotcom/sobject/sobject.rb', line 217

def self.find(record_id)
  self.client.find(self, record_id)
end

.first(where_expr = nil) ⇒ Object

Find the first record. If the where_expr argument is present, it must be the WHERE part of a SOQL query



243
244
245
246
 
# File 'lib/databasedotcom/sobject/sobject.rb', line 243

def self.first(where_expr=nil)
  where = where_expr ? "WHERE #{where_expr} " : ""
  self.client.query("SELECT #{self.field_list} FROM #{self.sobject_name} #{where}ORDER BY Id ASC LIMIT 1").first
end

.label_for(attr_name) ⇒ Object

Returns the label for the attribute attr_name. Raises ArgumentError if attribute does not exist.



194
195
196
 
# File 'lib/databasedotcom/sobject/sobject.rb', line 194

def self.label_for(attr_name)
  self.type_map_attr(attr_name, :label)
end

.last(where_expr = nil) ⇒ Object

Find the last record. If the where_expr argument is present, it must be the WHERE part of a SOQL query



249
250
251
252
 
# File 'lib/databasedotcom/sobject/sobject.rb', line 249

def self.last(where_expr=nil)
  where = where_expr ? "WHERE #{where_expr} " : ""
  self.client.query("SELECT #{self.field_list} FROM #{self.sobject_name} #{where}ORDER BY Id DESC LIMIT 1").first
end

.materialize(sobject_name) ⇒ Object

Materializes the dynamically created Sobject class by adding all attribute accessors for each field as described in the description of the object on Force.com



162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
 
# File 'lib/databasedotcom/sobject/sobject.rb', line 162

def self.materialize(sobject_name)
  self.cattr_accessor :description
  self.cattr_accessor :type_map
  self.cattr_accessor :sobject_name

  self.sobject_name = sobject_name
  self.description = self.client.describe_sobject(self.sobject_name)
  self.type_map = {}

  self.description["fields"].each do |field|

    # Register normal fields
    name = field["name"]
    register_field( field["name"], field )

    # Register relationship fields.
    if( field["type"] == "reference" and field["relationshipName"] )
      register_field( field["relationshipName"], field )
    end

  end
end

.method_missing(method_name, *args, &block) ⇒ Object

Sobject objects support dynamic finders similar to ActiveRecord.

client.materialize("Car")
Car.find_by_Color("Blue")
Car.find_all_by_Year("2011")
Car.find_by_Color_and_Year("Blue", "2011")
Car.find_or_create_by_Year("2011")
Car.find_or_initialize_by_Name("Foo")



277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
 
# File 'lib/databasedotcom/sobject/sobject.rb', line 277

def self.method_missing(method_name, *args, &block)
  if method_name.to_s =~ /^find_(or_create_|or_initialize_)?by_(.+)$/ || method_name.to_s =~ /^find_(all_)by_(.+)$/
    named_attrs = $2.split('_and_')
    attrs_and_values_for_find = {}
    hash_args = args.length == 1 && args[0].is_a?(Hash)
    attrs_and_values_for_write = hash_args ? args[0] : {}

    named_attrs.each_with_index do |attr, index|
      value = hash_args ? args[0][attr] : args[index]
      attrs_and_values_for_find[attr] = value
      attrs_and_values_for_write[attr] = value unless hash_args
    end

    limit_clause = method_name.to_s.include?('_all_by_') ? "" : " LIMIT 1"

    results = self.client.query("SELECT #{self.field_list} FROM #{self.sobject_name} WHERE #{soql_conditions_for(attrs_and_values_for_find)}#{limit_clause}")
    results = limit_clause == "" ? results : results.first rescue nil

    if results.nil?
      if method_name.to_s =~ /^find_or_create_by_(.+)$/
        results = self.client.create(self, attrs_and_values_for_write)
      elsif method_name.to_s =~ /^find_or_initialize_by_(.+)$/
        results = self.new
        attrs_and_values_for_write.each { |attr, val| results.send("#{attr}=", val) }
      end
    end

    results
  else
    super
  end
end

.picklist_values(attr_name) ⇒ Object

Returns the possible picklist options for the attribute attr_name. If attr_name is not of type picklist or multipicklist, [] is returned. Raises ArgumentError if attribute does not exist.



199
200
201
 
# File 'lib/databasedotcom/sobject/sobject.rb', line 199

def self.picklist_values(attr_name)
  self.type_map_attr(attr_name, :picklist_values)
end

.query(where_expr) ⇒ Object

Returns a collection of instances of self that match the conditional where_expr, which is the WHERE part of a SOQL query.

client.materialize("Car")
Car.query("Color = 'Blue'")    #=>   [#<Car @Id="1", @Color="Blue", ...>, #<Car @Id="5", @Color="Blue", ...>, ...]



233
234
235
 
# File 'lib/databasedotcom/sobject/sobject.rb', line 233

def self.query(where_expr)
  self.client.query("SELECT #{self.field_list} FROM #{self.sobject_name} WHERE #{where_expr}")
end

.search(sosl_expr) ⇒ Object

Delegates to Client.search



238
239
240
 
# File 'lib/databasedotcom/sobject/sobject.rb', line 238

def self.search(sosl_expr)
  self.client.search(sosl_expr)
end

.updateable?(attr_name) ⇒ Boolean

Returns true if the attribute attr_name can be updated. Raises ArgumentError if attribute does not exist.

Returns:

  • (Boolean) 


204
205
206
 
# File 'lib/databasedotcom/sobject/sobject.rb', line 204

def self.updateable?(attr_name)
  self.type_map_attr(attr_name, :updateable?)
end

.upsert(field, value, attrs) ⇒ Object

Delegates to Client.upsert with arguments self, field, values, and attrs



255
256
257
 
# File 'lib/databasedotcom/sobject/sobject.rb', line 255

def self.upsert(field, value, attrs)
  self.client.upsert(self.sobject_name, field, value, attrs)
end

Instance Method Details

#==(other) ⇒ Object 



8
9
10
11
 
# File 'lib/databasedotcom/sobject/sobject.rb', line 8

def ==(other)
  return false unless other.is_a?(self.class)
  self.Id == other.Id
end

#[](attr_name) ⇒ Object

Get a named attribute on this object



143
144
145
 
# File 'lib/databasedotcom/sobject/sobject.rb', line 143

def [](attr_name)
  self.send(attr_name) rescue nil
end

#[]=(attr_name, value) ⇒ Object

Set a named attribute on this object

Raises:

  • (ArgumentError) 


148
149
150
151
 
# File 'lib/databasedotcom/sobject/sobject.rb', line 148

def []=(attr_name, value)
  raise ArgumentError.new("No attribute named #{attr_name}") unless self.class.attributes.include?(attr_name)
  self.send("#{attr_name}=", value)
end

#attributes ⇒ Object

Returns a hash representing the state of this object



29
30
31
32
33
34
 
# File 'lib/databasedotcom/sobject/sobject.rb', line 29

def attributes
  self.class.attributes.inject({}) do |hash, attr|
    hash[attr] = self.send(attr.to_sym) if self.respond_to?(attr.to_sym)
    hash
  end
end

#attributes=(attrs) ⇒ Object

Set attributes of this object, from a hash, in bulk



37
38
39
40
41
 
# File 'lib/databasedotcom/sobject/sobject.rb', line 37

def attributes=(attrs)
  attrs.each do |key, value|
    self.send("#{key}=", value)
  end
end

#delete ⇒ Object

Deletes the corresponding record from the Force.com database. Returns self.

client.materialize("Car")
c = Car.find_by_Color("Yellow")
c.delete



126
127
128
129
130
 
# File 'lib/databasedotcom/sobject/sobject.rb', line 126

def delete
  if self.client.delete(self.class, self.Id)
    self
  end
end

#new_record? ⇒ Boolean

Returns true if this record has not been persisted in the Force.com database.

Returns:

  • (Boolean) 


49
50
51
 
# File 'lib/databasedotcom/sobject/sobject.rb', line 49

def new_record?
  !self.persisted?
end

#persisted? ⇒ Boolean

Returns true if the object has been persisted in the Force.com database.

Returns:

  • (Boolean) 


44
45
46
 
# File 'lib/databasedotcom/sobject/sobject.rb', line 44

def persisted?
  !self.Id.nil?
end

#reload ⇒ Object

Reloads the record from the Force.com database. Returns self.

client.materialize("Car")
c = Car.find_by_Color("Yellow")
c.reload



137
138
139
140
 
# File 'lib/databasedotcom/sobject/sobject.rb', line 137

def reload
  self.attributes = self.class.find(self.Id).attributes
  self
end

#save(options = {}) ⇒ Object

Updates the corresponding record on Force.com with the attributes of self.

client.materialize("Car")
c = Car.find_by_Color("Yellow")
c.Color = "Green"
c.save

options can contain the following keys:

exclusions # an array of field names (case sensitive) to exclude from save



102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
 
# File 'lib/databasedotcom/sobject/sobject.rb', line 102

def save(options={})
  attr_hash = {}
  selection_attr = self.Id.nil? ? "createable" : "updateable"
  self.class.description["fields"].select { |f| f[selection_attr] }.collect { |f| f["name"] }.each { |attr| attr_hash[attr] = self.send(attr) }

  # allow fields to be removed on a case by case basis as some data is not allowed to be saved 
  # (e.g. Name field on Account with record type of Person Account) despite the API listing 
  # some fields as editable
  if options[:exclusions] and options[:exclusions].respond_to?(:include?) then
    attr_hash.delete_if { |key, value| options[:exclusions].include?(key.to_s) }
  end

  if self.Id.nil?
    self.Id = self.client.create(self.class, attr_hash).Id
  else
    self.client.update(self.class, self.Id, attr_hash)
  end
end

#to_key ⇒ Object

Returns a unique object id for self.



59
60
61
 
# File 'lib/databasedotcom/sobject/sobject.rb', line 59

def to_key
  [object_id]
end

#to_model ⇒ Object

Returns self.



54
55
56
 
# File 'lib/databasedotcom/sobject/sobject.rb', line 54

def to_model
  self
end

#to_param ⇒ Object

Returns the Force.com Id for this instance.



64
65
66
 
# File 'lib/databasedotcom/sobject/sobject.rb', line 64

def to_param
  self.Id
end

#update_attribute(attr_name, attr_value) ⇒ Object

Updates the corresponding record on Force.com by setting the attribute attr_name to attr_value.

client.materialize("Car")
c = Car.new
c.update_attribute("Color", "Blue")



73
74
75
 
# File 'lib/databasedotcom/sobject/sobject.rb', line 73

def update_attribute(attr_name, attr_value)
  update_attributes(attr_name => attr_value)
end

#update_attributes(new_attrs) ⇒ Object

Updates the corresponding record on Force.com with the attributes specified by the new_attrs hash.

client.materialize("Car")
c = Car.new
c.update_attributes {"Color" => "Blue", "Year" => "2012"}



82
83
84
85
86
87
88
89
90
 
# File 'lib/databasedotcom/sobject/sobject.rb', line 82

def update_attributes(new_attrs)
  if self.client.update(self.class, self.Id, new_attrs)
    new_attrs = new_attrs.is_a?(Hash) ? new_attrs : JSON.parse(new_attrs)
    new_attrs.each do |attr, value|
      self.send("#{attr}=", value)
    end
  end
  self
end