Class: Mapper

Constructor

new Mapper(client, optionsopt)

Parameters:

Name	Type	Attributes	Description
client	Client		The Client instance to use to execute the queries and fetch the metadata.
options	MappingOptions	<optional>	The MappingOptions containing the information of the models and table mappings.

Source:

• mapping/mapper.js, line 43

Examples

Creating a Mapper instance with some options for the model 'User'

const mappingOptions = {
  models: {
    'User': {
      tables: ['users'],
      mappings: new UnderscoreCqlToCamelCaseMappings(),
      columnNames: {
        'userid': 'id'
      }
    }
  }
};
const mapper = new Mapper(client, mappingOptions);

Creating a Mapper instance with other possible options for a model

const mappingOptions = {
  models: {
    'Video': {
      tables: ['videos', 'user_videos', 'latest_videos', { name: 'my_videos_view', isView: true }],
      mappings: new UnderscoreCqlToCamelCaseMappings(),
      columnNames: {
        'videoid': 'id'
      },
      keyspace: 'ks1'
    }
  }
};
const mapper = new Mapper(client, mappingOptions);