Class: Ld::Tables

Inherits:
Object
  • Object
show all
Defined in:
lib/ld/project/tables.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(root, models) ⇒ Tables

Returns a new instance of Tables.



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# File 'lib/ld/project/tables.rb', line 5

def initialize root, models
  @root = root
  @models = models
  parse
end

Instance Attribute Details

#headings ⇒ Object

Returns the value of attribute headings.



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# File 'lib/ld/project/tables.rb', line 3

def headings
  @headings
end

#rows ⇒ Object

Returns the value of attribute rows.



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# File 'lib/ld/project/tables.rb', line 3

def rows
  @rows
end

#tables ⇒ Object

Returns the value of attribute tables.



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# File 'lib/ld/project/tables.rb', line 3

def tables
  @tables
end

Instance Method Details

#parse ⇒ Object 



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# File 'lib/ld/project/tables.rb', line 11

def parse
  tables = {}
  read_flag = false
  table = ""
  @root.find('db/schema.rb').lines.each do |l|
    if l.split(' ')[0] == 'end'
      read_flag = false
    end
    if l.split(' ')[0] == 'create_table'
      read_flag = true
      table = l.split('"')[1]
      tables[table] = []
    end
    if read_flag
      tables[table] << l
    end
  end
  rows = []
  tables.each do |table_name, lines|
    model_class = parse_class table_name
    lines.delete_at(0)
    lines.each do |line|
      hash = parse_line line
      if hash[:type] != 'index'
        if @models
          @model_name = @models.models.include?(table_name.singularize) ? table_name.singularize : nil
        end
        rows << [@model_name,table_name,hash[:field],hash[:type],hash[:comment],hash[:null],hash[:default],hash[:precision],hash[:limit]]
      end
    end
  end
  @headings = ['所属模型','表名','字段','字段类型','描述','空约束','默认值','精度位数','limit']
  @rows = rows.sort{|a,b| b[1] <=> a[1]}
  @tables = tables.keys
end

#parse_class(table_name) ⇒ Object 



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# File 'lib/ld/project/tables.rb', line 73

def parse_class table_name
  model_class = table_name.singularize.camelize.constantize
  return model_class
rescue
  return nil
end

#parse_line(line) ⇒ Object 



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# File 'lib/ld/project/tables.rb', line 47

def parse_line line
  arr = line.split(' ')
  hash = {}
  if arr[0].match(/^t./)
    hash[:type]    = arr[0].split('.')[1]
    i = nil
    if hash[:type] == 'index'
      hash[:name]    = arr[i + 1] if i = arr.index('name:')
      hash[:unique]    = arr[i + 1] if i = arr.index('unique:')
      hash[:using]    = arr[i + 1] if i = arr.index('using:')
    else
      hash[:field]    = line.split('"')[1]
      hash[:null]    = arr[i + 1] if i = arr.index('name:')
      hash[:limit] = arr[i + 1] if i = arr.index('limit:')
      hash[:comment] = arr[i + 1].split('"')[1] if i = arr.index('comment:')
      hash[:default] = arr[i + 1] if i = arr.index('default:')
      hash[:precision] = arr[i + 1] if i = arr.index('precision:')
      hash[:precision] = arr[i + 1] if i = arr.index('precision:')
    end
    return hash
  else

  end
  return false
end