@@ -1,16 +1,18 @@ require File.dirname(__FILE__)+'/../lib/dirdb' +require 'ostruct' -class Article +class Article < OpenStruct include DirDB::Resource # index_class DirDB::Index::YAML - # glob '*.haml' + glob '*.haml' index :by_ctime do |article| File.ctime(article.path) end - index :by_reverse_length do |article| - -article.title.length + + lookup :by_slug do |article| + article.slug end attr_reader :title @@ -24,18 +26,21 @@ class Article # end # end - # title - File.basename(path,'haml').sub(/^\d+_/,'').gsub('_',' ') - end - - def initialize(title) - @title = title || '' + info = { + :title => File.basename(path,'haml').sub(/^\d+_/,'').gsub('_',' '), + :slug => File.basename(path,'haml').sub(/\.$/,'') + } + pp info + [ info ] end + end if __FILE__ == $0 require 'pp' Article.path = File.dirname(__FILE__) + '/blog' - pp Article.all(:by_ctime) + p = Article.all(:by_ctime).first + puts p.path + puts p.read.class end \ No newline at end of file examples/blog.rb @@ -5,6 +5,5 @@ __DIR__ = File.dirname(__FILE__) require "#{__DIR__}/dirdb/resource" -require "#{__DIR__}/dirdb/index" require "#{__DIR__}/dirdb/index/basic" require "#{__DIR__}/dirdb/index/yaml" \ No newline at end of file lib/dirdb.rb @@ -11,6 +11,11 @@ module DirDB @indexes end + def lookups + prepare! unless @lookups + @lookups + end + # access resources def resources prepare! unless @resources @@ -19,13 +24,17 @@ module DirDB # prepare the lazy variables indexes & resources. def prepare! + @lookups = {} scan_resources! build_index! + build_lookups! + + pp @lookups end # scan all the resources resource_class knows about def scan_resources! - @resources = {} + @resources = @lookups[:_default] = {} @resource_arguments = {} @default_order = [] @@ -33,7 +42,7 @@ module DirDB @default_order << basename = File.basename(path) @resource_arguments[basename] = resource_arguments = @resource_class.scan_file(path) - + instantiate_resource!(basename,resource_arguments) end end @@ -46,15 +55,23 @@ module DirDB # build resources using the resource_class def build_index! + puts "build_index!" @indexes = {} @indexes = @resource_class.build_indexes(@resources) @indexes[:_default] ||= @default_order end - - # get a resource - def get(basename) - resources[basename] + + def build_lookups! + @lookups = @resource_class.build_lookups(@resources) + end + + def find(name,key) + pp name + pp key + pp @lookups + + lookups[name][key] end # get all resources sorted using +index+ @@ -62,6 +79,7 @@ module DirDB index_name ||= :_default selected_index = indexes[index_name] || raise(ArgumentError,"Index '#{index_name}' doesn't exist.") + puts "selected_index: #{index_name}" pp selected_index resources.values_at(*selected_index) lib/dirdb/index/basic.rb @@ -22,7 +22,7 @@ module DirDB @resource_arguments = state[:resource_arguments] @resource_arguments.each do |(basename,args)| - instantiate_resource!(basename,resource_arguments) + instantiate_resource!(basename,args) end end lib/dirdb/index/yaml.rb @@ -16,6 +16,10 @@ module DirDB self.class.index end + def read + File.read(path) + end + module ClassMethods def path=(path) @path = path @@ -54,6 +58,11 @@ module DirDB @indexes[name] = block end + def lookup(name,&block) + @lookups ||= {} + @lookups[name] = block + end + def build_indexes(resources) built_index = {} @@ -64,6 +73,20 @@ module DirDB built_index end + def build_lookups(resources) + built_lookups = {} + + (@lookups || {}).each do |(name,block)| + built_lookups[name] = lookup = Hash.new {|h,k| h[k] = []} + + resources.each do |(_,res)| + lookup[block[res]] << res + end + end + + built_lookups + end + def resource_index @resource_index ||= index_class.new(self) end @@ -77,12 +100,22 @@ module DirDB end end + + def all(index_name=nil) resource_index.all(index_name) end def get(basename) - resource_index.get(basename) + resource_index.find(:_default, basename) + end + + def find(lookup_name,key) + resource_index.find(lookup_name,key) + end + + def first(lookup_name,key) + resource_index.find(lookup_name,key).first end end end lib/dirdb/resource.rb lib/dirdb/index.rb lib/dirdb/info.rb lib/dirdb/scanner.rb 332eb4afa7678a4c2f1314e9e7b462341663cc60 lachie lachiec@gmail.com http://github.com/lachie/dirdb/commit/c33f4e85823f0cc45d482731a1eb0dc53bf85556 c33f4e85823f0cc45d482731a1eb0dc53bf85556 2009-02-15T23:21:36-08:00 2009-02-15T23:21:36-08:00 lots of work for real-world application (blog) 6923131fb092d65b557a47d5040ad4224efa6a18 lachie lachiec@gmail.com