Class: Gm::Notepad::InputHandlers::QueryTableNamesHandler

Inherits:
DefaultHandler
  • Object
show all
Defined in:
lib/gm/notepad/input_handlers/query_table_names_handler.rb

Constant Summary collapse

QUERY_TABLE_NAMES_PREFIX = 
'+'.freeze
WITH_GREP_REGEXP = 
%r{(?<declaration>\/(?<grep>[^\/]+)/)}

Class Method Summary collapse

Instance Method Summary collapse

Methods inherited from DefaultHandler

build_if_handled, #initialize, #lines

Constructor Details

This class inherits a constructor from Gm::Notepad::InputHandlers::DefaultHandler

Class Method Details

.handles?(input:) ⇒ Boolean

Returns:

  • (Boolean) 


8
9
10
11
12
13
14
15
16
 
# File 'lib/gm/notepad/input_handlers/query_table_names_handler.rb', line 8

def self.handles?(input:)
  # Does not have the table prefix
  return false unless input.match(/^\+/)
  # It is only the table prefix
  return true if input.match(/^\+$/)
  # It is querying all tables by way of grep
  return true if input.match(/^\+\//)
  false
end

Instance Method Details

#after_initialize! ⇒ Object 



19
20
21
22
23
24
25
26
27
28
29
30
31
32
 
# File 'lib/gm/notepad/input_handlers/query_table_names_handler.rb', line 19

def after_initialize!
  grep = nil
  input.sub!(/^./,'')
  if match = input.match(WITH_GREP_REGEXP)
    input.sub!(match[:declaration], '')
    grep = match[:grep]
  end

  table_names = table_registry.table_names
  table_names = table_names.grep(%r{#{grep}}) if grep
  table_names.each do |table_name|
    input.render_current_text(text: table_name, to_interactive: true, to_output: false, expand_line: false)
  end
end