Class: StaticDataListWidget

Inherits:
BaseList show all
Defined in:
lib/cuca/stdlib/listwidget/staticdatalist.rb

Overview

Displays data from memory

Example:

StaticDataList(‘list_name’,

:columns => [ { :id => 'id',    :display=>'ID' },
              { :id => 'name',  :display=>'Name' } ],
:data    => [[ 1, 'Jack'],
             [ 2, 'Elvis'],
             [ 3, 'Alice']])

Instance Attribute Summary

Attributes inherited from BaseList

#data, #rewrite_hooks

Instance Method Summary collapse

Methods inherited from BaseList

#add_rewrite_hook, #check_query_def, #load_query_definition, #rewrite_field

Methods included from Cuca::Generator::Markaby

#mab, #mabtext

Methods included from Cuca::Generator::View

#view, #view_p, #viewtext, #viewtext_p

Methods inherited from Cuca::Widget

#app, #cgi, #clear, clear_hints, #content, #content=, #controller, define_attr_method, #escape, #escapeHTML, #get_assigns, #hints, #initialize, #log, #params, #query_parameters, #request_method, #request_parameters, run_attr_method, #session, #to_s, #unescape, #unescapeHTML

Constructor Details

This class inherits a constructor from Cuca::Widget

Instance Method Details

#apply_filters(query_def) ⇒ Object 



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# File 'lib/cuca/stdlib/listwidget/staticdatalist.rb', line 50

def apply_filters(query_def)
  query_def.filters.each_pair do |k,v|
    @data = filter(@data, k,v)
  end
#   $stderr.puts "Done filtering: #{@data.inspect}"
end

#col_idx_by_id(col) ⇒ Object 



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# File 'lib/cuca/stdlib/listwidget/staticdatalist.rb', line 70

def col_idx_by_id(col)
  @sd_columns.each_index do |idx|
     if @sd_columns[idx][:id] == col then
       return idx
     end 
  end
  return nil
end

#columns ⇒ Object 



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# File 'lib/cuca/stdlib/listwidget/staticdatalist.rb', line 29

def columns
  return @sd_columns
end

#filter(data, column_name, value) ⇒ Object 



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# File 'lib/cuca/stdlib/listwidget/staticdatalist.rb', line 33

def filter(data, column_name, value)
  cidx = col_idx_by_id(column_name)
  return data if cidx.nil?
  return data if value.strip.empty?

  new_data = []
  data.each_index do |didx|
    if data[didx][cidx].instance_of?(String) then
#         $stderr.puts "Filter: #{@data[didx][cidx]} on #{value}"
        new_data << data[didx] if data[didx][cidx].include?(value)
#         $stderr.puts @new_data.inspect
    end
  end
#   $stderr.puts "Filter done(#{column_name}, #{value}): #{new_data.inspect}"
  return new_data
end

#output(list_name = "noname", data_setup = {}) ⇒ Object 



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# File 'lib/cuca/stdlib/listwidget/staticdatalist.rb', line 19

def output(list_name = "noname", data_setup = {})
  @sd_columns = data_setup[:columns] || []
  @sd_data    = data_setup[:data] || []
  @list_name = list_name
  setup
  @sd_columns.freeze
  @sd_data.freeze
  super(@list_name)
end

#query(query_def) ⇒ Object 



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# File 'lib/cuca/stdlib/listwidget/staticdatalist.rb', line 59

def query(query_def)
  cidx = col_idx_by_id(query_def.order_by) || 0
  
  @data = @sd_data.sort { |a,b| a[cidx] <=> b[cidx] }
  @data = @data.reverse if query_def.order == 'DESC'
  apply_filters(query_def)
  @total_rows = @data.size
  @data = @data[query_def.range]
  
end

#setup ⇒ Object 



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# File 'lib/cuca/stdlib/listwidget/staticdatalist.rb', line 15

def setup
  super
end