Class: Ridgepole::DSLParser::Context

Inherits:
Object
  • Object
show all
Defined in:
lib/ridgepole/dsl_parser.rb

Defined Under Namespace

Classes: TableDefinition

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(opts = {}) ⇒ Context

Returns a new instance of Context.



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# File 'lib/ridgepole/dsl_parser.rb', line 137

def initialize(opts = {})
  @__working_dir = File.expand_path(opts[:path] ? File.dirname(opts[:path]) : Dir.pwd)
  @__definition = {}
  @__execute = []
end

Instance Attribute Details

#__definition ⇒ Object (readonly)

Returns the value of attribute __definition.



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# File 'lib/ridgepole/dsl_parser.rb', line 134

def __definition
  @__definition
end

#__execute ⇒ Object (readonly)

Returns the value of attribute __execute.



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# File 'lib/ridgepole/dsl_parser.rb', line 135

def __execute
  @__execute
end

Class Method Details

.eval(dsl, opts = {}) ⇒ Object 



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# File 'lib/ridgepole/dsl_parser.rb', line 143

def self.eval(dsl, opts = {})
  ctx = self.new(opts)

  if opts[:path]
    ctx.instance_eval(dsl, opts[:path])
  else
    ctx.instance_eval(dsl)
  end

  [ctx.__definition, ctx.__execute]
end

Instance Method Details

#add_foreign_key(from_table, to_table, options = {}) ⇒ Object 



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# File 'lib/ridgepole/dsl_parser.rb', line 211

def add_foreign_key(from_table, to_table, options = {})
  unless options[:name]
    raise "Foreign key name in `#{from_table}` is undefined"
  end

  from_table = from_table.to_s
  to_table = to_table.to_s
  options[:name] = options[:name].to_s
  @__definition[from_table] ||= {}
  @__definition[from_table][:foreign_keys] ||= {}
  idx = options[:name]

  if @__definition[from_table][:foreign_keys][idx]
    raise "Foreign Key `#{from_table}(#{idx})` already defined"
  end

  @__definition[from_table][:foreign_keys][idx] = {
    :to_table => to_table,
    :options => options,
  }
end

#add_index(table_name, column_name, options = {}) ⇒ Object 



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# File 'lib/ridgepole/dsl_parser.rb', line 175

def add_index(table_name, column_name, options = {})
  table_name = table_name.to_s
  # Keep column_name for expression index support
  # https://github.com/rails/rails/pull/23393
  unless column_name.is_a?(String) && /\W/ === column_name
    column_name = [column_name].flatten.map {|i| i.to_s }
  end
  options[:name] = options[:name].to_s if options[:name]
  @__definition[table_name] ||= {}
  @__definition[table_name][:indices] ||= {}
  idx = options[:name] || column_name

  if @__definition[table_name][:indices][idx]
    raise "Index `#{table_name}(#{idx})` already defined"
  end

  if options[:length].is_a?(Numeric)
    index_length = options[:length]
    options[:length] = {}

    column_name.each do |col|
      options[:length][col] = index_length
    end

    # XXX: fix for https://github.com/rails/rails/commit/5025fd3a99c68f95bdd6fd43f382c62e9653236b
    if ActiveRecord::VERSION::MAJOR >= 6 or (ActiveRecord::VERSION::MAJOR == 5 and (ActiveRecord::VERSION::MINOR >= 1 or ActiveRecord::VERSION::TINY >= 1))
      options[:length] = options[:length].symbolize_keys
    end
  end

  @__definition[table_name][:indices][idx] = {
    :column_name => column_name,
    :options => options,
  }
end

#create_table(table_name, options = {}) {|table_definition| ... } ⇒ Object

Yields:

  • (table_definition) 


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# File 'lib/ridgepole/dsl_parser.rb', line 155

def create_table(table_name, options = {})
  table_name = table_name.to_s
  table_definition = TableDefinition.new(table_name, self)

  if options[:primary_key] and options[:primary_key].is_a?(Symbol)
    options[:primary_key] = options[:primary_key].to_s
  end

  yield(table_definition)
  @__definition[table_name] ||= {}

  if @__definition[table_name][:definition]
    raise "Table `#{table_name}` already defined"
  end

  @__definition[table_name][:definition] = table_definition.__definition
  options.delete(:force)
  @__definition[table_name][:options] = options
end

#execute(sql, name = nil, &cond) ⇒ Object 



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# File 'lib/ridgepole/dsl_parser.rb', line 245

def execute(sql, name = nil, &cond)
  @__execute << {
    :sql => sql,
    :condition => cond,
  }
end

#require(file) ⇒ Object 



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# File 'lib/ridgepole/dsl_parser.rb', line 233

def require(file)
  schemafile = (file =~ %r|\A/|) ? file : File.join(@__working_dir, file)

  if File.exist?(schemafile)
    instance_eval(File.read(schemafile), schemafile)
  elsif File.exist?(schemafile + '.rb')
    instance_eval(File.read(schemafile + '.rb'), schemafile + '.rb')
  else
    Kernel.require(file)
  end
end