Module: MapFields
- Defined in:
- lib/map_fields.rb
Defined Under Namespace
Modules: ClassMethods
Classes: InconsistentStateError, MappedFields, MissingFileContentsError, ParamsParser
Constant Summary
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- VERSION =
'1.0.0'
Class Method Summary
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Instance Method Summary
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Class Method Details
.included(base) ⇒ Object
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# File 'lib/map_fields.rb', line 6
def self.included(base)
base.extend(ClassMethods)
end
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Instance Method Details
#fields_mapped? ⇒ Boolean
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# File 'lib/map_fields.rb', line 62
def fields_mapped?
raise @map_fields_error if @map_fields_error
@mapped_fields
end
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#map_field_parameters(&block) ⇒ Object
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# File 'lib/map_fields.rb', line 67
def map_field_parameters(&block)
end
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#map_fields ⇒ Object
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# File 'lib/map_fields.rb', line 10
def map_fields
default_options = {
:file_field => 'file',
:params => []
}
options = default_options.merge(
self.class.read_inheritable_attribute(:map_fields_options)
)
if session[:map_fields].nil? || params[options[:file_field]]
session[:map_fields] = {}
if params[options[:file_field]].blank?
@map_fields_error = MissingFileContentsError
return
end
file_field = params[options[:file_field]]
temp_path = File.join(Dir::tmpdir, "map_fields_#{Time.now.to_i}_#{$$}")
File.open(temp_path, 'wb') do |f|
f.write file_field.read
end
session[:map_fields][:file] = temp_path
@rows = []
FasterCSV.foreach(temp_path) do |row|
@rows << row
break if @rows.size == 10
end
expected_fields = self.class.read_inheritable_attribute(:map_fields_fields)
@fields = ([nil] + expected_fields).inject([]){ |o, e| o << [e, o.size]}
@parameters = []
options[:params].each do |param|
@parameters += ParamsParser.parse(params, param)
end
else
if session[:map_fields][:file].nil? || params[:fields].nil?
session[:map_fields] = nil
@map_fields_error = InconsistentStateError
else
@mapped_fields = MappedFields.new(session[:map_fields][:file],
params[:fields],
params[:ignore_first_row])
end
end
end
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#map_fields_cleanup ⇒ Object
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# File 'lib/map_fields.rb', line 71
def map_fields_cleanup
if @mapped_fields
if session[:map_fields][:file]
File.delete(session[:map_fields][:file])
end
session[:map_fields] = nil
@mapped_fields = nil
@map_fields_error = nil
end
end
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#mapped_fields ⇒ Object
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# File 'lib/map_fields.rb', line 58
def mapped_fields
@mapped_fields
end
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