module Neo4j::Generators::MigrationHelper
Public Instance Methods
base_migration_file_name(file_name, prefix = '')
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# File lib/rails/generators/neo4j_generator.rb 12 def base_migration_file_name(file_name, prefix = '') 13 "#{prefix}#{file_name.parameterize}" 14 end
existing_migration(dirname, file_name)
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# File lib/rails/generators/neo4j_generator.rb 25 def existing_migration(dirname, file_name) 26 migration_lookup_at(dirname).grep(/\d+_#{file_name}.rb$/).first 27 end
migration_file_name(file_name, prefix = '')
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# File lib/rails/generators/neo4j_generator.rb 16 def migration_file_name(file_name, prefix = '') 17 "#{Time.now.utc.strftime('%Y%m%d%H%M%S')}_#{base_migration_file_name(file_name, prefix)}.rb" 18 end
migration_lookup_at(dirname)
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# File lib/rails/generators/neo4j_generator.rb 20 def migration_lookup_at(dirname) 21 Dir.glob("#{dirname}/[0-9]*_*.rb") 22 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/neo4j_generator.rb 30 def migration_template(template_name, prefix = '') 31 real_file_name = case @behavior 32 when :revoke 33 existing_migration( 34 'db/neo4j/migrate', 35 base_migration_file_name(file_name, prefix) 36 ) 37 else 38 migration_file_name(file_name, prefix) 39 end 40 41 # If running with :revoke and migration doesn't exist, real_file_name = nil 42 return if !real_file_name 43 44 @migration_class_name = file_name.camelize 45 46 # template() method is still run on revoke but it doesn't generate anything 47 # other than a consol message indicating the filepath. 48 # (this appears to be behavior provided by rails) 49 template template_name, File.join('db/neo4j/migrate', real_file_name) 50 51 # On revoke, we need to manually remove the file 52 FileUtils.rm(real_file_name) if @behavior == :revoke 53 end