Class: Hatio::Generators::MigrationUtil

Inherits:
Object
  • Object
show all
Defined in:
lib/generators/hatio/util/migration_util.rb

Class Method Summary collapse

Class Method Details

.add_migration_columns(columns, pk_col_name) ⇒ Object

입력된 attributes로 부터 migration fields를 추가, columns는 Entity의 Entity Columns



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# File 'lib/generators/hatio/util/migration_util.rb', line 143

def self.add_migration_columns(columns, pk_col_name)
  output = ""
  userstampable, timestampable = false, false
    
  columns.each do |column|
    if(column.name == 'id')
    elsif(column.name == 'domain_id')
      output << "\t\t\tt.references :domain, :null => false\n"
    elsif(column.name == 'created_at' || column.name == 'updated_at')
      timestampable = true
    elsif(column.name == 'creator_id' || column.name == 'updater_id')
      userstampable = true
    elsif(column.ref_type == "Entity")
      if(column.name.ends_with?("_id"))
        ref_name = column.name[0 .. column.name.rindex('_') - 1]
        output << "\t\t\tt.references :#{ref_name}\n"
      else
        output << "\t\t\tt.#{column.col_type} :#{column.name}\n"
      end
    else
      output << "\t\t\tt.#{column.col_type} :#{column.name}"
      output << ", :null => false" if(!column.nullable.nil? && !column.nullable)
      output << ", :limit => #{column.col_size}" if(column.col_type == 'string' && column.col_size && column.col_size > 0)
      output << ", :default => #{column.def_val}" if(column.def_val && !column.def_val.empty?)
      output << "\n"
    end
  end
    
  output << "\t\t\tt.userstamps\n" if userstampable
  output << "\t\t\tt.timestamps\n" if timestampable
  output
end

.add_migration_fields(attributes) ⇒ Object

입력된 attributes로 부터 migration fields를 추가



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# File 'lib/generators/hatio/util/migration_util.rb', line 39

def self.add_migration_fields(attributes)
  output, userstampable, timestampable = "", false, false
    
  attributes.each do |attr|
    if (attr.name == 'id')
    elsif(attr.name == 'domain_id')
      output << "\t\t\tt.references :domain, :null => false\n"
    elsif(attr.name == 'creator_id' || attr.name == 'updater_id')
      userstampable = true
    elsif(attr.name == 'created_at' || attr.name == 'updated_at')
      timestampable = true
    elsif(attr.name == 'name')
      output << "\t\t\tt.references :name, :null => false, :limit => 64\n"
    else
      begin
        output << "\t\t\tt.#{attr.type} :#{attr.name}\n"
      rescue
        output << "\t\t\tt.#{attr.col_type} :#{attr.name}\n"
      end
    end
  end
    
  output << "\t\t\tt.userstamps\n" if userstampable
  output << "\t\t\tt.timestamps\n" if timestampable
  output
end

.add_migration_index(table_name, attributes) ⇒ Object

add migration index



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# File 'lib/generators/hatio/util/migration_util.rb', line 69

def self.add_migration_index(table_name, attributes)
  output, index_seq = "", 0
  domain_id_attr = attributes.find { |attr| attr.name == 'domain_id' }
  name_attr = attributes.find { |attr| attr.name == 'name' }
  updated_at_attr = attributes.find { |attr| attr.name == 'updated_at' }
  
  uniq_cols = attributes.select { |col| col.uniq_rank > 0 }.sort_by(&:uniq_rank)
  if(!uniq_cols.empty?)
    uniq_col_names = uniq_cols.map { |col| ":#{col.name}" }.join(",")
    output << "\t\tadd_index :#{table_name}, [#{uniq_col_names}], :unique => true, :name => :ix_#{table_name}_#{index_seq}\n"
    index_seq += 1
  end        
    
  if(domain_id_attr && updated_at_attr)
    output << "\t\tadd_index :#{table_name}, [:domain_id, :updated_at], :name => :ix_#{table_name}_#{index_seq}\n"
    index_seq += 1
  elsif(updated_at_attr)
    output << "\t\tadd_index :#{table_name}, [:updated_at], :name => :ix_#{table_name}_#{index_seq}\n"
    index_seq += 1
  end
    
  output
end

.create_table_migration(class_name, table_name, attributes, options, pk_col_name) ⇒ Object

table migration 내용 생성



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# File 'lib/generators/hatio/util/migration_util.rb', line 123

def self.create_table_migration(class_name, table_name, attributes, options, pk_col_name)
  id_option = self.id_option_str(options.id_type)
  id_option = ":id => false" if(pk_col_name && pk_col_name != 'id')

  output = "class Create#{class_name.pluralize} < ActiveRecord::Migration\n\n"
  output << "\tdef change\n"
  output << "\t\tcreate_table #{table_name.to_sym.inspect} #{id_option} do |t|\n"
  output << "#{Hatio::Generators::MigrationUtil.add_migration_columns(attributes, pk_col_name)}"
  output << "\t\tend\n\n"

  output << "#{MigrationUtil.add_migration_index(table_name, attributes)}"

  output << "\tend\n\n"
  output << "end\n"
  output
end

.generated_attributes(model_attributes) ⇒ Object

입력한 attributes들로 부터 GeneratedAttribute를 생성하여 array로 리턴



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# File 'lib/generators/hatio/util/migration_util.rb', line 8

def self.generated_attributes(model_attributes)
  attrs = []
  model_attributes.each do |attribute|
    attrs << Rails::Generators::GeneratedAttribute.new(*attribute.split(":")) if attribute.include?(":")
  end
  return attrs
end

.id_option_str(id_type) ⇒ Object

id option str



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# File 'lib/generators/hatio/util/migration_util.rb', line 26

def self.id_option_str(id_type)
  if(id_type == 'auto-increment')
    return ''
  elsif(id_type == 'none')
    return ",:id => false"
  else
    return ",:id => :#{id_type}"
  end
end

.next_migration_number ⇒ Object

generate db migration file number



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# File 'lib/generators/hatio/util/migration_util.rb', line 19

def self.next_migration_number
  Time.now.utc.strftime("%Y%m%d%H%M%S")
end

.remove_migration_index(table_name, attributes) ⇒ Object

remove migration index



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# File 'lib/generators/hatio/util/migration_util.rb', line 96

def self.remove_migration_index(table_name, attributes)
  output, index_seq = "", 0
  domain_id_attr = attributes.find { |attr| attr.name == 'domain_id' }
  name_attr = attributes.find { |attr| attr.name == 'name' }
  updated_at_attr = attributes.find { |attr| attr.name == 'updated_at' }
  
  uniq_cols = attributes.select { |col| col.uniq_rank > 0 }.sort_by(&:uniq_rank)
  if(!uniq_cols.empty?)
    uniq_col_names = uniq_cols.map { |col| ":#{col.name}" }.join(",")
    output << "\t\tremove_index :#{table_name}, [#{uniq_col_names}], :unique => true, :name => :ix_#{table_name}_#{index_seq}\n"
    index_seq += 1
  end        
    
  if(domain_id_attr && updated_at_attr)
    output << "\t\tremove_index :#{table_name}, [:domain_id, :updated_at], :name => :ix_#{table_name}_#{index_seq}\n"
    index_seq += 1
  elsif(updated_at_attr)
    output << "\t\tremove_index :#{table_name}, [:updated_at], :name => :ix_#{table_name}_#{index_seq}\n"
    index_seq += 1
  end
    
  output
end