### Home Classes Methods

### In Files

- lib/sequel/plugins/xml_serializer.rb

### Methods

- #from_xml
- #from_xml_node
- #to_xml
- #to_xml_include

### Files

- CHANGELOG
- MIT-LICENSE
- README.rdoc
- active_record.rdoc
- advanced_associations.rdoc
- association_basics.rdoc
- cheat_sheet.rdoc
- dataset_basics.rdoc
- dataset_filtering.rdoc
- mass_assignment.rdoc
- migration.rdoc
- model_hooks.rdoc
- opening_databases.rdoc
- prepared_statements.rdoc
- querying.rdoc
- reflection.rdoc
- 1.0.txt
- 1.1.txt
- 1.3.txt
- 1.4.0.txt
- 1.5.0.txt
- 2.0.0.txt
- 2.1.0.txt
- 2.10.0.txt
- 2.11.0.txt
- 2.12.0.txt
- 2.2.0.txt
- 2.3.0.txt
- 2.4.0.txt
- 2.5.0.txt
- 2.6.0.txt
- 2.7.0.txt
- 2.8.0.txt
- 2.9.0.txt
- 3.0.0.txt
- 3.1.0.txt
- 3.10.0.txt
- 3.11.0.txt
- 3.12.0.txt
- 3.13.0.txt
- 3.14.0.txt
- 3.15.0.txt
- 3.16.0.txt
- 3.17.0.txt
- 3.18.0.txt
- 3.19.0.txt
- 3.2.0.txt
- 3.20.0.txt
- 3.21.0.txt
- 3.22.0.txt
- 3.23.0.txt
- 3.24.0.txt
- 3.25.0.txt
- 3.26.0.txt
- 3.27.0.txt
- 3.28.0.txt
- 3.29.0.txt
- 3.3.0.txt
- 3.30.0.txt
- 3.31.0.txt
- 3.32.0.txt
- 3.33.0.txt
- 3.4.0.txt
- 3.5.0.txt
- 3.6.0.txt
- 3.7.0.txt
- 3.8.0.txt
- 3.9.0.txt
- schema_modification.rdoc
- sharding.rdoc
- sql.rdoc
- testing.rdoc
- transactions.rdoc
- validations.rdoc
- virtual_rows.rdoc

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# Sequel::Plugins::XmlSerializer::InstanceMethods

### Public Instance Methods

from_xml(xml, opts={}) click to toggle source

Update the contents of this instance based on the given XML. Accepts the following options:

:name_proc | Proc or Hash that accepts a string and returns a string, used to convert tag names to column or association names.
:underscore | Sets the :name_proc option to one that calls `underscore` on the input string. Requires that you load the inflector extension or another library that adds String#underscore.

         # File lib/sequel/plugins/xml_serializer.rb, line 185
    185:         def from_xml(xml, opts={})
    186:           from_xml_node(Nokogiri::XML(xml).children.first, opts)
    187:         end

from_xml_node(parent, opts={}) click to toggle source

Update the contents of this instance based on the given XML node, which should be a Nokogiri::XML::Node instance.

         # File lib/sequel/plugins/xml_serializer.rb, line 191
    191:         def from_xml_node(parent, opts={})
    192:           cols = model.columns.map{|x| x.to_s}
    193:           assocs = {}
    194:           model.associations.map{|x| assocs[x.to_s] = model.association_reflection(x)}
    195:           meths = send(:setter_methods, nil, nil)
    196:           name_proc = model.xml_deserialize_name_proc(opts)
    197:           parent.children.each do |node|
    198:             next if node.is_a?(Nokogiri::XML::Text)
    199:             k = name_proc[node.name]
    200:             if ar = assocs[k]
    201:               klass = ar.associated_class
    202:               associations[k.to_sym] = if ar.returns_array?
    203:                 node.children.reject{|c| c.is_a?(Nokogiri::XML::Text)}.map{|c| klass.from_xml_node(c)}
    204:               else
    205:                 klass.from_xml_node(node)
    206:               end
    207:             elsif cols.include?(k)
    208:               self[k.to_sym] = node.key?('nil') ? nil : node.children.first.to_s
    209:             elsif meths.include?("#{k}=")
    210:               send("#{k}=", node.key?('nil') ? nil : node.children.first.to_s)
    211:             else
    212:               raise Error, "Entry in XML not an association or column and no setter method exists: #{k}"
    213:             end
    214:           end
    215:           self
    216:         end

to_xml(opts={}) click to toggle source

Return a string in XML format. If a block is given, yields the XML builder object so you can add additional XML tags. Accepts the following options:

:builder | The builder instance used to build the XML, which should be an instance of Nokogiri::XML::Node. This is necessary if you are serializing entire object graphs, like associated objects.
:builder_opts | Options to pass to the Nokogiri::XML::Builder initializer, if the :builder option is not provided.
:camelize | Sets the :name_proc option to one that calls `camelize` on the input string. Requires that you load the inflector extension or another library that adds String#camelize.
:dasherize | Sets the :name_proc option to one that calls `dasherize` on the input string. Requires that you load the inflector extension or another library that adds String#dasherize.
:encoding | The encoding to use for the XML output, passed to the Nokogiri::XML::Builder initializer.
:except | Symbol or Array of Symbols of columns not to include in the XML output.
:include | Symbol, Array of Symbols, or a Hash with Symbol keys and Hash values specifying associations or other non-column attributes to include in the XML output. Using a nested hash, you can pass options to associations to affect the XML used for associated objects.
:name_proc | Proc or Hash that accepts a string and returns a string, used to format tag names.
:only | Symbol or Array of Symbols of columns to only include in the JSON output, ignoring all other columns.
:root_name | The base name to use for the XML tag that contains the data for this instance. This will be the name of the root node if you are only serializing a single object, but not if you are serializing an array of objects using Model.to_xml or Dataset#to_xml.
:types | Set to true to include type information for all of the columns, pulled from the db_schema.

         # File lib/sequel/plugins/xml_serializer.rb, line 256
    256:         def to_xml(opts={})
    257:           vals = values
    258:           types = opts[:types]
    259:           inc = opts[:include]
    260:
    261:           cols = if only = opts[:only]
    262:             Array(only)
    263:           else
    264:             vals.keys - Array(opts[:except])
    265:           end
    266:
    267:           name_proc = model.xml_serialize_name_proc(opts)
    268:           x = model.xml_builder(opts)
    269:           x.send(name_proc[opts.fetch(:root_name, model.send(:underscore, model.name).gsub('/', '__')).to_s]) do |x1|
    270:             cols.each do |c|
    271:               attrs = {}
    272:               if types
    273:                 attrs[:type] = db_schema.fetch(c, {})[:type]
    274:               end
    275:               v = vals[c]
    276:               if v.nil?
    277:                 attrs[:nil] = ''
    278:               end
    279:               x1.send(name_proc[c.to_s], v, attrs)
    280:             end
    281:             if inc.is_a?(Hash)
    282:               inc.each{|k, v| to_xml_include(x1, k, v)}
    283:             else
    284:               Array(inc).each{|i| to_xml_include(x1, i)}
    285:             end
    286:             yield x1 if block_given?
    287:           end
    288:           x.to_xml
    289:         end

### Private Instance Methods

to_xml_include(node, i, opts={}) click to toggle source

Handle associated objects and virtual attributes when creating the xml.

         # File lib/sequel/plugins/xml_serializer.rb, line 295
    295:         def to_xml_include(node, i, opts={})
    296:           name_proc = model.xml_serialize_name_proc(opts)
    297:           objs = send(i)
    298:           if objs.is_a?(Array) && objs.all?{|x| x.is_a?(Sequel::Model)}
    299:             node.send(name_proc[i.to_s]) do |x2|
    300:               objs.each{|obj| obj.to_xml(opts.merge(:builder=>x2))}
    301:             end
    302:           elsif objs.is_a?(Sequel::Model)
    303:             objs.to_xml(opts.merge(:builder=>node, :root_name=>i))
    304:           else
    305:             node.send(name_proc[i.to_s], objs)
    306:           end
    307:         end

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