Class: Wice::WiceGrid
Instance Attribute Summary collapse
-
#ar_options ⇒ Object
readonly
:nodoc:.
-
#csv_field_separator ⇒ Object
readonly
:nodoc:.
-
#csv_file_name ⇒ Object
readonly
:nodoc:.
-
#csv_tempfile ⇒ Object
:nodoc:.
-
#custom_order ⇒ Object
readonly
:nodoc:.
-
#export_to_csv_enabled ⇒ Object
readonly
:nodoc:.
-
#klass ⇒ Object
readonly
:nodoc:.
-
#name ⇒ Object
readonly
:nodoc:.
-
#output_buffer ⇒ Object
:nodoc:.
-
#query_store_model ⇒ Object
readonly
:nodoc:.
-
#renderer ⇒ Object
writeonly
:nodoc:.
-
#resultset ⇒ Object
readonly
:nodoc:.
-
#saved_query ⇒ Object
readonly
:nodoc:.
-
#status ⇒ Object
readonly
:nodoc:.
-
#view_helper_finished ⇒ Object
:nodoc:.
Instance Method Summary collapse
- #add_references(relation) ⇒ Object
-
#all_pages_records ⇒ Object
Returns the list of objects browsable through all pages with the current filters.
-
#all_record_mode? ⇒ Boolean
:nodoc:.
-
#count ⇒ Object
(also: #size)
:nodoc:.
-
#current_page_records ⇒ Object
Returns the list of objects displayed on current page.
-
#declare_column(column_name, model, custom_filter_active, table_alias, filter_type) ⇒ Object
:nodoc:.
-
#distinct_values_for_column(column) ⇒ Object
with this variant we get even those values which do not appear in the resultset.
-
#distinct_values_for_column_in_resultset(messages) ⇒ Object
:nodoc:.
-
#dump_status ⇒ Object
:nodoc:.
-
#each ⇒ Object
:nodoc:.
-
#empty? ⇒ Boolean
:nodoc:.
-
#filter_params(view_column) ⇒ Object
Getters.
-
#filtered_by ⇒ Object
:nodoc:.
-
#filtered_by?(view_column) ⇒ Boolean
:nodoc:.
-
#filtering_on? ⇒ Boolean
:nodoc:.
-
#form_ar_options(opts = {}) ⇒ Object
:nodoc:.
-
#get_state_as_parameter_value_pairs(including_saved_query_request = false) ⇒ Object
:nodoc:.
-
#initialize(klass_or_relation, controller, opts = {}) ⇒ WiceGrid
constructor
core workflow methods START.
-
#order_direction ⇒ Object
:nodoc:.
-
#ordered_by ⇒ Object
:nodoc:.
-
#ordered_by?(column) ⇒ Boolean
:nodoc:.
-
#output_csv? ⇒ Boolean
:nodoc:.
-
#output_html? ⇒ Boolean
:nodoc:.
-
#process_loading_query ⇒ Object
:nodoc:.
-
#process_params ⇒ Object
:nodoc:.
-
#read ⇒ Object
TO DO: what to do with other @ar_options values?.
-
#with_paginated_resultset(&callback) ⇒ Object
A block executed from within the plugin to process records of the current page.
-
#with_resultset(&callback) ⇒ Object
A block executed from within the plugin to process all records browsable through all pages with the current filters.
Constructor Details
#initialize(klass_or_relation, controller, opts = {}) ⇒ WiceGrid
core workflow methods START
70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 |
# File 'lib/wice_grid.rb', line 70 def initialize(klass_or_relation, controller, opts = {}) #:nodoc: @controller = controller @relation = klass_or_relation @klass = @relation.kind_of?(Class) && @relation.ancestors.index(ActiveRecord::Base) ? klass_or_relation : klass_or_relation.klass unless @klass.kind_of?(Class) && @klass.ancestors.index(ActiveRecord::Base) raise WiceGridArgumentError.new("ActiveRecord model class (second argument) must be a Class derived from ActiveRecord::Base") end # validate :with_resultset & :with_paginated_resultset [:with_resultset, :with_paginated_resultset].each do |callback_symbol| unless [NilClass, Symbol, Proc].index(opts[callback_symbol].class) raise WiceGridArgumentError.new(":#{callback_symbol} must be either a Proc or Symbol object") end end opts[:order_direction].downcase! if opts[:order_direction].kind_of?(String) # validate :order_direction if opts[:order_direction] && ! (opts[:order_direction] == 'asc' || opts[:order_direction] == :asc || opts[:order_direction] == 'desc' || opts[:order_direction] == :desc) raise WiceGridArgumentError.new(":order_direction must be either 'asc' or 'desc'.") end begin # options that are understood @options = { conditions: nil, csv_file_name: nil, csv_field_separator: Defaults::CSV_FIELD_SEPARATOR, custom_order: {}, enable_export_to_csv: Defaults::ENABLE_EXPORT_TO_CSV, group: nil, include: nil, joins: nil, name: Defaults::GRID_NAME, order: nil, order_direction: Defaults::ORDER_DIRECTION, page: 1, page_method_name: Defaults::PAGE_METHOD_NAME, per_page: Defaults::PER_PAGE, saved_query: nil, total_entries: nil, with_paginated_resultset: nil, with_resultset: nil } rescue NameError raise NameError.new('A constant is missing in wice_grid_config.rb: ' + $!. + '. This can happen when you upgrade the WiceGrid to a newer version with a new configuration constant. ' + 'Add the constant manually or re-run `bundle exec rails g wice_grid:install`.') end # validate parameters opts.assert_valid_keys(@options.keys) @options.merge!(opts) @export_to_csv_enabled = @options[:enable_export_to_csv] @csv_file_name = @options[:csv_file_name] @csv_field_separator = @options[:csv_field_separator] case @name = @options[:name] when String when Symbol @name = @name.to_s else raise WiceGridArgumentError.new("name of the grid should be a string or a symbol") end raise WiceGridArgumentError.new("name of the grid can only contain alphanumeruc characters") unless @name =~ /^[a-zA-Z\d_]*$/ @table_column_matrix = TableColumnMatrix.new @table_column_matrix.default_model_class = @klass @ar_options = {} @status = HashWithIndifferentAccess.new if @options[:order] @options[:order] = @options[:order].to_s @options[:order_direction] = @options[:order_direction].to_s @status[:order_direction] = @options[:order_direction] @status[:order] = @options[:order] end @status[:total_entries] = @options[:total_entries] @status[:per_page] = @options[:per_page] @status[:page] = @options[:page] @status[:conditions] = @options[:conditions] @status[:f] = @options[:f] process_loading_query process_params @ar_options_formed = false end |
Instance Attribute Details
#ar_options ⇒ Object (readonly)
:nodoc:
64 65 66 |
# File 'lib/wice_grid.rb', line 64 def @ar_options end |
#csv_field_separator ⇒ Object (readonly)
:nodoc:
64 65 66 |
# File 'lib/wice_grid.rb', line 64 def csv_field_separator @csv_field_separator end |
#csv_file_name ⇒ Object (readonly)
:nodoc:
64 65 66 |
# File 'lib/wice_grid.rb', line 64 def csv_file_name @csv_file_name end |
#csv_tempfile ⇒ Object
:nodoc:
66 67 68 |
# File 'lib/wice_grid.rb', line 66 def csv_tempfile @csv_tempfile end |
#custom_order ⇒ Object (readonly)
:nodoc:
63 64 65 |
# File 'lib/wice_grid.rb', line 63 def custom_order @custom_order end |
#export_to_csv_enabled ⇒ Object (readonly)
:nodoc:
64 65 66 |
# File 'lib/wice_grid.rb', line 64 def export_to_csv_enabled @export_to_csv_enabled end |
#output_buffer ⇒ Object
:nodoc:
66 67 68 |
# File 'lib/wice_grid.rb', line 66 def output_buffer @output_buffer end |
#query_store_model ⇒ Object (readonly)
:nodoc:
63 64 65 |
# File 'lib/wice_grid.rb', line 63 def query_store_model @query_store_model end |
#renderer=(value) ⇒ Object (writeonly)
:nodoc:
65 66 67 |
# File 'lib/wice_grid.rb', line 65 def renderer=(value) @renderer = value end |
#resultset ⇒ Object (readonly)
:nodoc:
63 64 65 |
# File 'lib/wice_grid.rb', line 63 def resultset @resultset end |
#saved_query ⇒ Object (readonly)
:nodoc:
64 65 66 |
# File 'lib/wice_grid.rb', line 64 def saved_query @saved_query end |
#status ⇒ Object (readonly)
:nodoc:
64 65 66 |
# File 'lib/wice_grid.rb', line 64 def status @status end |
#view_helper_finished ⇒ Object
:nodoc:
66 67 68 |
# File 'lib/wice_grid.rb', line 66 def view_helper_finished @view_helper_finished end |
Instance Method Details
#add_references(relation) ⇒ Object
294 295 296 297 298 299 300 |
# File 'lib/wice_grid.rb', line 294 def add_references relation if @ar_options[:include] && relation.respond_to?(:references) refs = [@ar_options[:include]] unless @ar_options[:include].is_a?(Array) relation = relation.references(* @ar_options[:include]) end relation end |
#all_pages_records ⇒ Object
Returns the list of objects browsable through all pages with the current filters. Should only be called after the grid
helper.
482 483 484 485 |
# File 'lib/wice_grid.rb', line 482 def all_pages_records raise WiceGridException.new("all_pages_records can only be called only after the grid view helper") unless self.view_helper_finished resultset_without_paging_with_user_filters end |
#all_record_mode? ⇒ Boolean
:nodoc:
469 470 471 |
# File 'lib/wice_grid.rb', line 469 def all_record_mode? #:nodoc: @status[:pp] end |
#count ⇒ Object Also known as: size
:nodoc:
419 420 421 422 423 424 425 426 427 |
# File 'lib/wice_grid.rb', line 419 def count #:nodoc: (skip_ordering: true, forget_generated_options: true) @relation.count( conditions: @ar_options[:conditions], joins: @ar_options[:joins], include: @ar_options[:include], group: @ar_options[:group] ) end |
#current_page_records ⇒ Object
Returns the list of objects displayed on current page. Should only be called after the grid
helper.
488 489 490 491 |
# File 'lib/wice_grid.rb', line 488 def current_page_records raise WiceGridException.new("current_page_records can only be called only after the grid view helper") unless self.view_helper_finished @resultset end |
#declare_column(column_name, model, custom_filter_active, table_alias, filter_type) ⇒ Object
:nodoc:
217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 |
# File 'lib/wice_grid.rb', line 217 def declare_column(column_name, model, custom_filter_active, table_alias, filter_type) #:nodoc: if model # this is an included table column = @table_column_matrix.get_column_by_model_class_and_column_name(model, column_name) raise WiceGridArgumentError.new("Column '#{column_name}' is not found in table '#{model.table_name}'!") if column.nil? main_table = false table_name = model.table_name else column = @table_column_matrix.get_column_in_default_model_class_by_column_name(column_name) if column.nil? raise WiceGridArgumentError.new("Column '#{column_name}' is not found in table '#{@klass.table_name}'! " + "If '#{column_name}' belongs to another table you should declare it in :include or :join when initialising " + "the grid, and specify :model in column declaration.") end main_table = true table_name = @table_column_matrix.default_model_class.table_name end if column conditions_generator = ActiveRecordColumnWrapper.new(column, @status[:f], main_table, table_alias, custom_filter_active, filter_type) conditions, current_parameter_name = conditions_generator.wg_initialize_request_parameters if @status[:f] && conditions.blank? @status[:f].delete(current_parameter_name) end @table_column_matrix.add_condition(column, conditions) [column, table_name , main_table] else nil end end |
#distinct_values_for_column(column) ⇒ Object
with this variant we get even those values which do not appear in the resultset
436 437 438 439 440 |
# File 'lib/wice_grid.rb', line 436 def distinct_values_for_column(column) #:nodoc: res = column.model.select("distinct #{column.name}").order("#{column.name} asc").collect{|ar| ar[column.name] }.reject{|e| e.blank?}.map{|i|[i,i]} end |
#distinct_values_for_column_in_resultset(messages) ⇒ Object
:nodoc:
443 444 445 446 447 448 449 450 451 452 453 454 455 456 457 458 459 |
# File 'lib/wice_grid.rb', line 443 def distinct_values_for_column_in_resultset() #:nodoc: uniq_vals = Set.new resultset_without_paging_without_user_filters.each do |ar| v = ar.deep_send(*) uniq_vals << v unless v.nil? end return uniq_vals.to_a.map{|i| if i.is_a?(Array) && i.size == 2 i elsif i.is_a?(Hash) && i.size == 1 i.to_a.flatten else [i,i] end }.sort{|a,b| a[0]<=>b[0]} end |
#dump_status ⇒ Object
:nodoc:
473 474 475 476 477 |
# File 'lib/wice_grid.rb', line 473 def dump_status #:nodoc: " params: #{params[name].inspect}\n" + " status: #{@status.inspect}\n" + " ar_options #{@ar_options.inspect}\n" end |
#each ⇒ Object
:nodoc:
354 355 356 357 358 359 |
# File 'lib/wice_grid.rb', line 354 def each #:nodoc: self.read unless @resultset # database querying is late! @resultset.each do |r| yield r end end |
#empty? ⇒ Boolean
:nodoc:
431 432 433 |
# File 'lib/wice_grid.rb', line 431 def empty? #:nodoc: self.count == 0 end |
#filter_params(view_column) ⇒ Object
Getters
340 341 342 343 344 345 346 347 |
# File 'lib/wice_grid.rb', line 340 def filter_params(view_column) #:nodoc: column_name = view_column.attribute_name_fully_qualified_for_all_but_main_table_columns if @status[:f] && @status[:f][column_name] @status[:f][column_name] else {} end end |
#filtered_by ⇒ Object
:nodoc:
383 384 385 |
# File 'lib/wice_grid.rb', line 383 def filtered_by #:nodoc: @status[:f].nil? ? [] : @status[:f].keys end |
#filtered_by?(view_column) ⇒ Boolean
:nodoc:
387 388 389 |
# File 'lib/wice_grid.rb', line 387 def filtered_by?(view_column) #:nodoc: @status[:f].nil? ? false : @status[:f].has_key?(view_column.attribute_name_fully_qualified_for_all_but_main_table_columns) end |
#filtering_on? ⇒ Boolean
:nodoc:
379 380 381 |
# File 'lib/wice_grid.rb', line 379 def filtering_on? #:nodoc: not @status[:f].blank? end |
#form_ar_options(opts = {}) ⇒ Object
:nodoc:
249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 |
# File 'lib/wice_grid.rb', line 249 def (opts = {}) #:nodoc: return if @ar_options_formed @ar_options_formed = true unless opts[:forget_generated_options] # validate @status[:order_direction] @status[:order_direction] = case @status[:order_direction] when /desc/i 'desc' when /asc/i 'asc' else '' end # conditions # do not delete for a while # https://github.com/leikind/wice_grid/issues/144 # if @table_column_matrix.generated_conditions.size == 0 # @status.delete(:f) # end @ar_options[:conditions] = klass.send(:merge_conditions, @status[:conditions], * @table_column_matrix.conditions ) # conditions processed if (! opts[:skip_ordering]) && ! @status[:order].blank? @ar_options[:order] = add_custom_order_sql(complete_column_name(@status[:order])) @ar_options[:order] += ' ' + @status[:order_direction] end @ar_options[:joins] = @options[:joins] @ar_options[:include] = @options[:include] @ar_options[:group] = @options[:group] if self.output_html? @ar_options[:per_page] = @status[:per_page] @ar_options[:page] = @status[:page] @ar_options[:total_entries] = @status[:total_entries] if @status[:total_entries] end end |
#get_state_as_parameter_value_pairs(including_saved_query_request = false) ⇒ Object
:nodoc:
391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 |
# File 'lib/wice_grid.rb', line 391 def get_state_as_parameter_value_pairs(including_saved_query_request = false) #:nodoc: res = [] unless status[:f].blank? Wice::WgHash.parameter_names_and_values(status[:f], [name, 'f']).collect do |param_name, value| if value.is_a?(Array) param_name_ar = param_name + '[]' value.each do |v| res << [param_name_ar, v] end else res << [param_name, value] end end end if including_saved_query_request && @saved_query res << ["#{name}[q]", @saved_query.id ] end [:order, :order_direction].select{|parameter| status[parameter] }.collect do |parameter| res << ["#{name}[#{parameter}]", status[parameter] ] end res end |
#order_direction ⇒ Object
:nodoc:
375 376 377 |
# File 'lib/wice_grid.rb', line 375 def order_direction #:nodoc: @status[:order_direction] end |
#ordered_by ⇒ Object
:nodoc:
370 371 372 |
# File 'lib/wice_grid.rb', line 370 def ordered_by #:nodoc: @status[:order] end |
#ordered_by?(column) ⇒ Boolean
:nodoc:
361 362 363 364 365 366 367 368 |
# File 'lib/wice_grid.rb', line 361 def ordered_by?(column) #:nodoc: return nil if @status[:order].blank? if column.main_table && ! offs = @status[:order].index('.') @status[:order] == column.attribute else @status[:order] == column.table_alias_or_table_name + '.' + column.attribute end end |
#output_csv? ⇒ Boolean
:nodoc:
461 462 463 |
# File 'lib/wice_grid.rb', line 461 def output_csv? #:nodoc: @status[:export] == 'csv' end |
#output_html? ⇒ Boolean
:nodoc:
465 466 467 |
# File 'lib/wice_grid.rb', line 465 def output_html? #:nodoc: @status[:export].blank? end |
#process_loading_query ⇒ Object
:nodoc:
183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 |
# File 'lib/wice_grid.rb', line 183 def process_loading_query #:nodoc: @saved_query = nil if params[name] && params[name][:q] @saved_query = load_query(params[name][:q]) params[name].delete(:q) elsif @options[:saved_query] if @options[:saved_query].is_a? ActiveRecord::Base @saved_query = @options[:saved_query] else @saved_query = load_query(@options[:saved_query]) end else return end unless @saved_query.nil? params[name] = HashWithIndifferentAccess.new if params[name].blank? [:f, :order, :order_direction].each do |key| if @saved_query.query[key].blank? params[name].delete(key) else params[name][key] = @saved_query.query[key] end end end end |
#process_params ⇒ Object
:nodoc:
210 211 212 213 214 215 |
# File 'lib/wice_grid.rb', line 210 def process_params #:nodoc: if this_grid_params @status.merge!(this_grid_params) @status.delete(:export) unless self.export_to_csv_enabled end end |
#read ⇒ Object
TO DO: what to do with other @ar_options values?
303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 |
# File 'lib/wice_grid.rb', line 303 def read #:nodoc: @klass.unscoped do @resultset = if self.output_csv? || all_record_mode? relation = @relation. includes(@ar_options[:include]). joins( @ar_options[:joins]). order( @ar_options[:order]). group( @ar_options[:group]). where( @ar_options[:conditions]) relation = add_references relation relation else # p @ar_options relation = @relation. send( @options[:page_method_name], @ar_options[:page]). per( @ar_options[:per_page]). includes(@ar_options[:include]). joins( @ar_options[:joins]). order( @ar_options[:order]). group( @ar_options[:group]). where( @ar_options[:conditions]) relation = add_references relation relation end end invoke_resultset_callbacks end |
#with_paginated_resultset(&callback) ⇒ Object
A block executed from within the plugin to process records of the current page. The argument to the callback is the array of the records. See the README for more details.
172 173 174 |
# File 'lib/wice_grid.rb', line 172 def with_paginated_resultset(&callback) @options[:with_paginated_resultset] = callback end |
#with_resultset(&callback) ⇒ Object
A block executed from within the plugin to process all records browsable through all pages with the current filters. The argument to the callback is a lambda object which returns the list of records when called. See the README for the explanation.
179 180 181 |
# File 'lib/wice_grid.rb', line 179 def with_resultset(&callback) @options[:with_resultset] = callback end |