Class: MyDiff::CLI

Inherits:
HighLine
  • Object
show all
Defined in:
lib/mydiff/cli.rb

Instance Method Summary collapse

Constructor Details

#initialize(parent) ⇒ CLI

Returns a new instance of CLI.



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# File 'lib/mydiff/cli.rb', line 5

def initialize(parent)
  @md = parent
  @tables = []
  @md.new_tables.each {|t| @tables << {:status => :new, :table => t}}
  @md.dropped_tables.each {|t| @tables << {:status => :drop, :table => t}}
  @md.changed_tables.each {|t| @tables << {:status => :change, :table => t}}
  
  @tables.sort! {|t1,t2| t1[:table] <=> t2[:table]}
  @changes = {}
  super()
end

Instance Method Details

#accept ⇒ Object 



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# File 'lib/mydiff/cli.rb', line 45

def accept
  submenu do |table|
    change = @changes[table[:table]]
    if change #and change.type.eql?(:patch)
      @changes.delete(table[:table])
    end
    @changes[table[:table]] = Change.new(@md, :add, table[:table])
  end
end

#apply! ⇒ Object 



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# File 'lib/mydiff/cli.rb', line 146

def apply!
  @changes.each_value do |change|
    change.apply!
  end
end

#main_menu ⇒ Object 



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# File 'lib/mydiff/cli.rb', line 17

def main_menu
  continue = true
  begin
    while continue
      choose do |menu|
        menu.prompt = "What now?"
      
        menu.choice("Status") { status }
        menu.choice("Accept") { accept }
        menu.choice("Reject") { reject }
        menu.choice("Patch")  { patch  }
        menu.choice("Apply")  { apply! }
        menu.choice("Quit")   { continue = false }
      end
    end
  rescue Interrupt
  end
end

#patch ⇒ Object 



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# File 'lib/mydiff/cli.rb', line 64

def patch
  submenu([:change, :new]) do |table|
    continue = true
    while continue
      rows = []
      @md.deleted_rows(table[:table]).each {|r| rows << {:status => :delete, :row => r}}
      @md.changed_rows(table[:table]).each {|r| rows << {:status => :change, :row => r}}
      @md.new_rows(table[:table]).each {|r| rows << {:status => :new, :row => r}}
      rows.each_with_index do |row, count|
        status = row[:status]
        row = row[:row]
        pkey = {}
        @md.pkey_of(table[:table]).each do |f|
          pkey[f] = row[f]
        end
        ndata = @md.data_fields_of(table[:table]).map do |f|
          row["n_#{f}"]
        end
        odata = @md.data_fields_of(table[:table]).map do |f|
          row["o_#{f}"]
        end
        
        begin
          if @changes[table[:table]].has_chunk?(pkey)
            status = "*"
          else
            status = " "
          end
        rescue
          status = " "
        end
        say ""
        say "%2d. [%s] (%s) %s" % [count, status, pkey.values.join("||"), odata.join("||")]
        puts "    [%s] (%s) %s" % [status, pkey.values.join("||"), ndata.join("||")]            
        
      end
      
      opt = ask "Which one?"
      if opt.empty? or opt.downcase.eql?("q")
        continue = false
      else
        if opt =~ /(\d+)-(\d+)/
          opts = ($1..$2).to_a
        elsif opt =~ /(\d+)/
          opts = [$1]
        end
        opts.each do |opt|
          row = rows[opt.to_i]
          if row.nil? or not opt =~ /[0-9+]/
            say "Wrong answer!"
            next
          end
          change = @changes[table[:table]]
          if (change and not change.type.eql?(:patch)) or not change
            @changes.delete(table[:table])
            change = Change.new(@md, :patch, table[:table])
          end

          pkey = {}
          @md.pkey_of(table[:table]).each do |f|
            pkey[f] = row[:row][f]
          end
          if change.has_chunk?(pkey)
            change.delete_chunk(pkey)
          else
            data = {}
            @md.data_fields_of(table[:table]).each do |f|
              data[f] = row[:row]["n_#{f}"]
            end
            change.add_chunk(row[:status], pkey, data)
          end

          @changes[table[:table]] = change
          if change.chunks.empty?
            @changes.delete(table[:table])
          end              
        end
      end
    end
  end      
end

#reject ⇒ Object 



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# File 'lib/mydiff/cli.rb', line 55

def reject
  submenu do |table|
    change = @changes[table[:table]]
    if change #and change.type.eql?(:patch)
      @changes.delete(table[:table])
    end
  end
end

#status(type = :all) ⇒ Object 



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# File 'lib/mydiff/cli.rb', line 36

def status(type = :all)
  type = [type] unless type.is_a?(Array)
  @tables.each_with_index do |table, count|
    if type.include?(:all) or type.include?(table[:status])
      render_row(count, table[:table], table[:status])
    end
  end
end