/
csv.rb
214 lines (176 loc) · 5.71 KB
/
csv.rb
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require 'csv'
require File.join(File.dirname(__FILE__), 'wrapper_formatter')
module HammerCLI::Output::Adapter
class CSValues < Abstract
class Cell
attr_accessor :field_wrapper, :data
def initialize(field_wrapper, data, formatters)
@field_wrapper = field_wrapper
@data = data
@formatters = formatters
end
def self.create_cells(field_wrappers, data, formatters)
results = []
field_wrappers.each do |field_wrapper|
field = field_wrapper.field
if field.is_a? Fields::Collection
results = results + expand_collection(field, data, formatters)
elsif field.is_a?(Fields::ContainerField)
results = results + expand_container(field, data, formatters)
else
results << Cell.new(field_wrapper, data, formatters)
end
end
return results
end
def formatted_value
WrapperFormatter.new(
@formatters.formatter_for_type(@field_wrapper.field.class),
@field_wrapper.field.parameters).format(value)
end
def self.values(headers, cells)
headers.map do |header|
cell = cells.find { |cell| cell.in_column?(header) }
cell ? cell.formatted_value : ''
end
end
def self.headers(cells, context)
cells.map(&:field_wrapper).select { |fw| ! fw.is_id? ||
context[:show_ids] }.map(&:display_name)
end
def in_column?(header)
self.field_wrapper.display_name == header
end
private
def self.expand_collection(field, data, formatters)
results = []
collection_data = data_for_field(field, data) || []
collection_data.each_with_index do |child_data, i|
field.fields.each do |child_field|
child_field_wrapper = FieldWrapper.new(child_field)
child_field_wrapper.append_prefix(field.label)
child_field_wrapper.append_suffix((i + 1).to_s)
results << Cell.new(child_field_wrapper, collection_data[i] || {}, formatters)
end
end
results
end
def self.expand_container(field, data, formatters)
child_fields = FieldWrapper.wrap(field.fields)
child_fields.each{ |child| child.append_prefix(field.label) }
create_cells(child_fields, data_for_field(field, data), formatters)
end
def self.data_for_field(field, data)
HammerCLI::Output::Adapter::CSValues.data_for_field(field, data)
end
def value
Cell.data_for_field(@field_wrapper.field, data)
end
end
class FieldWrapper
attr_accessor :name, :field
def self.wrap(fields)
fields.map{ |f| FieldWrapper.new(f) }
end
def initialize(field)
@field = field
@name = nil
@prefixes = []
@suffixes = []
end
def append_suffix(suffix)
@suffixes << suffix
end
def append_prefix(prefix)
@prefixes << prefix
end
def prefix
@prefixes.join("::")
end
def suffix
@suffixes.join("::")
end
def display_name
names = []
names << prefix unless prefix.empty?
names << @field.label if @field.label
names << suffix unless suffix.empty?
names.join("::")
end
def is_id?
self.field.class <= Fields::Id
end
end
def initialize(context = {}, formatters = {}, filters = {})
super
@paginate_by_default = false
end
def features
return %i[serialized inline] if tags.empty?
tags.map { |t| HammerCLI::Output::Utils.tag_to_feature(t) }
end
def row_data(fields, collection)
result = []
collection.each do |data|
result << Cell.create_cells(FieldWrapper.wrap(fields), data, @formatters)
end
result
end
def print_record(fields, record)
print_collection(fields, [record].flatten(1))
end
def print_collection(fields, collection, options = {})
current_chunk = options[:current_chunk] || :single
fields = filter_fields(fields).filter_by_classes
.filter_by_sets
.filter_by_data(collection.first,
compact_only: true)
.filtered_fields
rows = row_data(fields, collection)
# get headers using columns heuristic
headers = rows.map{ |r| Cell.headers(r, @context) }.max_by{ |headers| headers.size }
# or use headers from output definition
headers ||= default_headers(fields)
csv_string = generate do |csv|
csv << headers if headers && !@context[:no_headers] && %i[first single].include?(current_chunk)
rows.each do |row|
csv << Cell.values(headers, row)
end
end
output_stream.puts csv_string
end
def print_message(msg, msg_params={})
csv_string = generate do |csv|
labels = [_("Message")]
data = [msg.format(msg_params)]
unless msg_params.nil?
id = msg_params["id"] || msg_params[:id]
name = msg_params["name"] || msg_params[:name]
if id
labels << _("Id")
data << id
end
if name
labels << _("Name")
data << name
end
end
csv << labels
csv << data
end
puts csv_string
end
private
def generate(&block)
CSV.generate(
:col_sep => @context[:csv_separator] || ',',
:encoding => 'utf-8',
&block
)
end
def default_headers(fields)
fields.map(&:label)
end
end
HammerCLI::Output::Output.register_adapter(:csv, CSValues)
end