module ActiveGraph::Generators::MigrationHelper
Public Instance Methods
base_migration_file_name(file_name, prefix = '')
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# File lib/rails/generators/active_graph_generator.rb 14 def base_migration_file_name(file_name, prefix = '') 15 "#{prefix}#{file_name.parameterize}" 16 end
existing_migration(dirname, file_name)
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# File lib/rails/generators/active_graph_generator.rb 27 def existing_migration(dirname, file_name) 28 migration_lookup_at(dirname).grep(/\d+_#{file_name}.rb$/).first 29 end
migration_file_name(file_name, prefix = '')
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# File lib/rails/generators/active_graph_generator.rb 18 def migration_file_name(file_name, prefix = '') 19 "#{Time.now.utc.strftime('%Y%m%d%H%M%S')}_#{base_migration_file_name(file_name, prefix)}.rb" 20 end
migration_lookup_at(dirname)
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# File lib/rails/generators/active_graph_generator.rb 22 def migration_lookup_at(dirname) 23 Dir.glob("#{dirname}/[0-9]*_*.rb") 24 end
migration_template(template_name, prefix = '')
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:revoke happens when task is invoked with `rails destroy model ModelName`
# File lib/rails/generators/active_graph_generator.rb 32 def migration_template(template_name, prefix = '') 33 real_file_name = case @behavior 34 when :revoke 35 existing_migration( 36 'db/neo4j/migrate', 37 base_migration_file_name(file_name, prefix) 38 ) 39 else 40 migration_file_name(file_name, prefix) 41 end 42 43 # If running with :revoke and migration doesn't exist, real_file_name = nil 44 return if !real_file_name 45 46 @migration_class_name = file_name.camelize 47 48 # template() method is still run on revoke but it doesn't generate anything 49 # other than a consol message indicating the filepath. 50 # (this appears to be behavior provided by rails) 51 template template_name, File.join('db/neo4j/migrate', real_file_name) 52 53 # On revoke, we need to manually remove the file 54 FileUtils.rm(real_file_name) if @behavior == :revoke 55 end