Class: DrgcmsFormFields::MultitextAutocomplete

Inherits:
DrgcmsField
  • Object
show all
Defined in:
app/models/drgcms_form_fields.rb

Overview

Implementation of multitext_autocomplete DRG CMS form field.

multitext_autocomplete field is complex data entry field which uses autocomplete function when selecting multiple values for MongoDB Array field. Array typically holds id’s of selected documents and control typically displays value of the field name defined by search options.

Form options:

  • name: field name (required)

  • type: multitext_autocomplete (required)

  • table Collection (table) name. When defined search must contain field name

  • search: Search may consist of three parameters from which are separated either by dot (.) or comma(,)

    • search_field_name; when table option is defined search must define field name which will be used for search query

    • collection_name.search_field_name; Same as above except that table options must be ommited.

    • collection_name.search_field_name.method_name; When searching is more complex custom search

    method may be defined in CollectionName model which will provide result set for search.

Form example:

90:
  name: kats
  type: multitext_autocomplete
  search: dc_category.name      
  html:
    size: 30

Instance Attribute Summary

Attributes inherited from DrgcmsField

#html, #js

Class Method Summary collapse

Instance Method Summary collapse

Methods inherited from DrgcmsField

#hash_to_options, #initialize, #record_text_for, #set_initial_value, #t

Constructor Details

This class inherits a constructor from DrgcmsFormFields::DrgcmsField

Class Method Details

.get_data(params, name) ⇒ Object

Class method for retrieving data from multitext_autocomplete form field.



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# File 'app/models/drgcms_form_fields.rb', line 519

def self.get_data(params, name)
  r = []
  params['record'].each do |k,v| 
# if it starts with - then it was removed
    r << BSON::ObjectId.from_string(v) if k.match("#{name}_") and v[0,1] != '-'
  end
  r.uniq!
  r
end

Instance Method Details

#render ⇒ Object

Render multitext_autocomplete field html code



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# File 'app/models/drgcms_form_fields.rb', line 413

def render 
# search field name
  if @yaml['search'].to_s.match(/\./)
    table, field_name, method = @yaml['search'].split(/\.|\,/) 
    search = method.nil? ? field_name : "#{field_name}.#{method}"
  else # search and table name are separated
    search = field_name = @yaml['search']
  end
# determine table name 
  if @yaml['table']
    table = if @yaml['table'].class == String
      @yaml['table']
# eval(how_to_get_my_table_name)    
    elsif @yaml['table']['eval']
      eval @yaml['table']['eval']
    else
      p "Field #{@yaml['name']}: Invalid table parameter!"
      nil
    end
  end
  unless (table and search)
    @html << 'Table or search field not defined!' 
    return self
  end
# 
  return ro_standard(table, search) if @readonly
# TODO check if table exists    
  collection = table.classify.constantize
  unless @record.respond_to?(@yaml['name'])
    @html << "Invalid field name: #{@yaml['name']}" 
    return self
  end
# put field to enter search data on form
  @yaml['html'] ||= {}
  @yaml['html']['value'] = ''   # must be. Otherwise it will look into record and return error
  _name = '_' + @yaml['name']
  @html << '<table class="ui-autocomplete-table"><td>'
  @html << @parent.link_to(@parent.fa_icon('plus-square lg', class: 'dc-animate dc-green'), '#',onclick: 'return false;') # dummy add. But it is usefull.

  record = record_text_for(@yaml['name'])    
  @html << ' ' << @parent.text_field(record, _name, @yaml['html'])                 # text field for autocomplete
  @html << "<div id =\"#{record}#{@yaml['name']}\">"        # div to list active records
# find value for each field inside categories 
  unless @record[@yaml['name']].nil?
    @record[@yaml['name']].each do |element|
# this is quick and dirty trick. We have model dc_big_table which can be used for retrive 
# more complicated options
# TODO retrieve choices from big_table
      rec = if table == 'dc_big_table'
        collection.find(@yaml['name'], @parent.session)
      else
        collection.find(element)
      end
# Related data is missing. It happends.
      @html << if rec
        link  = @parent.link_to(@parent.fa_icon('remove lg', class: 'dc-animate dc-red'), '#',
                onclick: "$('##{rec.id}').hide(); var v = $('##{record}_#{@yaml['name']}_#{rec.id}'); v.val(\"-\" + v.val());return false;")
        field = @parent.hidden_field(record, "#{@yaml['name']}_#{rec.id}", value: element)
        "<div id=\"#{rec.id}\" style=\"padding:2px;\">#{link} #{rec[field_name]}<br>#{field}</div>"
      else
        '** error **'
      end
    end
  end
  @html << "</div></td></table>"
# Create text for div to be added when new category is selected  
  link    = @parent.link_to(@parent.fa_icon('remove lg', class: 'dc-animate dc-red'), '#', 
            onclick: "$('#rec_id').hide(); var v = $('##{record}_#{@yaml['name']}_rec_id'); v.val(\"-\" + v.val());return false;")
  field   = @parent.hidden_field(record, "#{@yaml['name']}_rec_id", value: 'rec_id')
  one_div = "<div id=\"rec_id\" style=\"padding:2px;\">#{link} rec_search<br>#{field}</div>"
    
# JS stuff    
  @js << <<EOJS
$(document).ready(function() {
  $("##{record}_#{_name}").autocomplete( {
    source: function(request, response) {
      $.ajax({
        url: "#{ @parent.url_for( controller: 'dc_common', action: 'autocomplete' )}",
        type: "POST",
        dataType: "json",
        data: { input: request.term, table: "#{table}", search: "#{search}" #{(',id: "'+@yaml['id'] + '"') if @yaml['id']} },
        success: function(data) {
          response( $.map( data, function(key) {
            return key;
          }));
        }
      });
    },
    change: function (event, ui) { 
      var div = '#{one_div}';
      div = div.replace(/rec_id/g, ui.item.id)
      div = div.replace('rec_search', ui.item.value)
      $("##{record}#{@yaml['name']}").append(div);
      $("##{record}_#{_name}").val('');
    },
    minLength: 2
  });
});
EOJS

  self 
end

#ro_standard(table, search) ⇒ Object

Returns value for readonly field



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# File 'app/models/drgcms_form_fields.rb', line 398

def ro_standard(table, search)
  result = ''
  table = table.classify.constantize
  return self if @record[@yaml['name']].nil?
# when field name and method are defined together
  search = search.split('.').first if search.match('.')
  @record[@yaml['name']].each do |element|
    result << table.find(element)[search] + '<br>'
  end
  super(result)
end