Class: MigrExt::Migration

Inherits:
Object
  • Object
show all
Defined in:
lib/migrext/migration.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(set, filename) ⇒ Migration

Returns a new instance of Migration.



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# File 'lib/migrext/migration.rb', line 8

def initialize(set, filename)
    @set = set
    @filename = filename

    if filename =~ /(\d+)_(\w+)\.rb$/i
        @original_version = @version = $1.to_i
        @original_name = @name = $2
        @original_plugin = @plugin = @set.name
    end

    if File.read(filename) =~ /#\s+imported\s+migration\s+(\d+)\s+(\w+)\s+from\s+(\w+)/i
        @version = $1.to_i
        @name = $2
        @plugin = $3
    end
end

Instance Attribute Details

#filename ⇒ Object (readonly)

Returns the value of attribute filename.



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# File 'lib/migrext/migration.rb', line 3

def filename
  @filename
end

#name ⇒ Object (readonly)

Returns the value of attribute name.



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# File 'lib/migrext/migration.rb', line 5

def name
  @name
end

#original_name ⇒ Object (readonly)

Returns the value of attribute original_name.



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# File 'lib/migrext/migration.rb', line 6

def original_name
  @original_name
end

#original_plugin ⇒ Object (readonly)

Returns the value of attribute original_plugin.



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# File 'lib/migrext/migration.rb', line 6

def original_plugin
  @original_plugin
end

#original_version ⇒ Object (readonly)

Returns the value of attribute original_version.



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# File 'lib/migrext/migration.rb', line 6

def original_version
  @original_version
end

#plugin ⇒ Object (readonly)

Returns the value of attribute plugin.



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# File 'lib/migrext/migration.rb', line 5

def plugin
  @plugin
end

#set ⇒ Object (readonly)

Returns the value of attribute set.



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# File 'lib/migrext/migration.rb', line 3

def set
  @set
end

#version ⇒ Object (readonly)

Returns the value of attribute version.



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# File 'lib/migrext/migration.rb', line 5

def version
  @version
end

Instance Method Details

#==(other_migration) ⇒ Object 



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# File 'lib/migrext/migration.rb', line 25

def ==(other_migration)
    version == other_migration.version && name == other_migration.name && plugin == other_migration.plugin
end

#create_rooted_content! ⇒ Object 



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# File 'lib/migrext/migration.rb', line 33

def create_rooted_content!
    if set.root?
        raise RuntimeError, "Set has to be from an extension root"
    end

    content = File.read(filename)
    name = set.name + "_" + self.name
    content.gsub! /^class \w+/, "class #{name.camelize}"
    content << "\n\n# imported migration #@version #@name from #@plugin\n"

    version = self.version.to_i

    if version < set.app.database_version
        version = set.app.database_version + 1
    end

    while true
        break unless set.app.current_migrations.any? {|migration| migration.original_version == version }
        version = version + 1
    end

    set.app.create_migration! version, name, content
    
end

#imported? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/migrext/migration.rb', line 29

def imported?
    set.app.current_migrations.include?(self)
end

#inspect ⇒ Object 



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# File 'lib/migrext/migration.rb', line 58

def inspect
    "#<MigrExt::Migration #@version/#@name/#@plugin original[#@original_version/#@original_name/#@original_plugin] @set=#{@set.name.inspect}>"
end