Class: Abebooks4r::Element
- Inherits:
-
Object
- Object
- Abebooks4r::Element
- Defined in:
- lib/abebooks4r.rb
Overview
Internal wrapper class to provide convenient method to access Hpricot element value.
Class Method Summary collapse
-
.get(element, path = '') ⇒ Object
Similar to #get, except an element object must be passed-in.
-
.get_array(element, path = '') ⇒ Object
Similar to #get_array, except an element object must be passed-in.
-
.get_hash(element, path = '') ⇒ Object
Similar to #get_hash, except an element object must be passed-in.
-
.get_unescaped(element, path = '') ⇒ Object
Similar to #get_unescaped, except an element object must be passed-in.
Instance Method Summary collapse
-
#/(path) ⇒ Object
Find Hpricot::Elements matching the given path.
-
#elem ⇒ Object
Returns Hpricot::Elments object.
-
#get(path = '') ⇒ Object
Get the text value of the given path, leave empty to retrieve current element value.
-
#get_array(path = '') ⇒ Object
Get the array values of the given path.
-
#get_hash(path = '') ⇒ Object
Get the children element text values in hash format with the element names as the hash keys.
-
#get_unescaped(path = '') ⇒ Object
Get the unescaped HTML text of the given path.
-
#initialize(element) ⇒ Element
constructor
Pass Hpricot::Elements object.
-
#search_and_convert(path) ⇒ Object
Find Hpricot::Elements matching the given path, and convert to Abebooks4r::Element.
- #to_s ⇒ Object
Constructor Details
#initialize(element) ⇒ Element
Pass Hpricot::Elements object
149 150 151 |
# File 'lib/abebooks4r.rb', line 149 def initialize(element) @element = element end |
Class Method Details
.get(element, path = '') ⇒ Object
Similar to #get, except an element object must be passed-in.
196 197 198 199 200 201 |
# File 'lib/abebooks4r.rb', line 196 def self.get(element, path='') return unless element result = element.at(path) result = result.inner_html if result result end |
.get_array(element, path = '') ⇒ Object
Similar to #get_array, except an element object must be passed-in.
210 211 212 213 214 215 216 217 218 219 220 221 222 223 |
# File 'lib/abebooks4r.rb', line 210 def self.get_array(element, path='') return unless element result = element/path if (result.is_a? Hpricot::Elements) || (result.is_a? Array) parsed_result = [] result.each {|item| parsed_result << Element.get(item) } parsed_result else [Element.get(result)] end end |
.get_hash(element, path = '') ⇒ Object
Similar to #get_hash, except an element object must be passed-in.
226 227 228 229 230 231 232 233 234 235 236 237 238 |
# File 'lib/abebooks4r.rb', line 226 def self.get_hash(element, path='') return unless element result = element.at(path) if result hash = {} result = result.children result.each do |item| hash[item.name.to_sym] = item.inner_html end hash end end |
.get_unescaped(element, path = '') ⇒ Object
Similar to #get_unescaped, except an element object must be passed-in.
204 205 206 207 |
# File 'lib/abebooks4r.rb', line 204 def self.get_unescaped(element, path='') result = get(element, path) CGI::unescapeHTML(result) if result end |
Instance Method Details
#/(path) ⇒ Object
Find Hpricot::Elements matching the given path. Example: element/“author”.
159 160 161 162 163 |
# File 'lib/abebooks4r.rb', line 159 def /(path) elements = @element/path return nil if elements.size == 0 elements end |
#elem ⇒ Object
Returns Hpricot::Elments object
154 155 156 |
# File 'lib/abebooks4r.rb', line 154 def elem @element end |
#get(path = '') ⇒ Object
Get the text value of the given path, leave empty to retrieve current element value.
176 177 178 |
# File 'lib/abebooks4r.rb', line 176 def get(path='') Element.get(@element, path) end |
#get_array(path = '') ⇒ Object
Get the array values of the given path.
186 187 188 |
# File 'lib/abebooks4r.rb', line 186 def get_array(path='') Element.get_array(@element, path) end |
#get_hash(path = '') ⇒ Object
Get the children element text values in hash format with the element names as the hash keys.
191 192 193 |
# File 'lib/abebooks4r.rb', line 191 def get_hash(path='') Element.get_hash(@element, path) end |
#get_unescaped(path = '') ⇒ Object
Get the unescaped HTML text of the given path.
181 182 183 |
# File 'lib/abebooks4r.rb', line 181 def get_unescaped(path='') Element.get_unescaped(@element, path) end |
#search_and_convert(path) ⇒ Object
Find Hpricot::Elements matching the given path, and convert to Abebooks4r::Element. Returns an array Abebooks4r::Elements if more than Hpricot::Elements size is greater than 1.
167 168 169 170 171 172 173 |
# File 'lib/abebooks4r.rb', line 167 def search_and_convert(path) elements = self./(path) return unless elements elements = elements.map{|element| Element.new(element)} return elements.first if elements.size == 1 elements end |
#to_s ⇒ Object
240 241 242 |
# File 'lib/abebooks4r.rb', line 240 def to_s elem.to_s if elem end |