CDR Data Dictionary to YAML Translator

Prototype YAML Generator

This document will guide you through setting up the yaml generator in your environment.

Create your working environment and load the required packages.

1. Create a virtual environment. For python 2.7, try virtualenv <env_folder_name>
2. Source your virtual environment. source <env_folder_name>/bin/activate
3. Ensure pip is up to date. pip install --upgrade pip
4. Install the requirements from the requirements file. pip install -r requirements.txt

Set up your google account credentials and API access. This document will go through the process of setting up the google drive requirements. You may study google's documentation for more in-depth knowledge.

Enable the Google Sheets API

1. Ensure you are logged into the Google project that will host the spreadsheet.
2. Using a web browser, navigate to google libraries at: https://console.developers.google.com/apis/library.
3. Search for Google Sheets API.
4. Select the Google Sheets API and enable it.

Create Account Credentials

1. Using a web browser, navigate to https://console.developers.google.com/apis/credentials
2. Select the project owning the Google Sheet.
3. Use the Create credentials button to create an OAuth Client ID.
4. You may have to create a consent screen for your project. Provide a name and any other requirements you would like to place on the screen. Then go back to the main credentials screen.
5. Select a type of Other and give it a name.
6. Download the client secret key.

Alternatively, you may use a service account key if you prefer.

Execute the program from the command line

To execute the yaml generator:

1. Ensure your virtual environment is active. source <env_name>/bin/activate
2. To create a yaml file for a single spreadsheet, in the directory with generate_yaml.py, type: python generate_yaml.py -k <path_to_client_secret_key> -i <URL identifier of the Google Sheet> -s "<Sheet Name>" --cdr-version <CDR version spreadsheet correlates with> -c
3. To create a yaml file for all spreadsheets, type: python generate_yaml.py -k <path_to_client_secret_key> -i <URL identifier of the Google Sheet> --cdr-version <CDR version spreadsheet correlates with> -c

This will generate a yaml file for the sheet identified by the URL identifier and the sheet name. For example, if the URL of the sheet is: https://docs.google.com/spreadsheets/d/1qDTcz5tUnEGFoZfyPPtp-2mF6U/edit, then the identifier is: 1qDTcz5tUnEGFoZfyPPtp-2mF6U. If the document contained sheets named: Field Gen, Row Sup, you would generate a yaml file for the Row Sup sheet for CDR version R1 with the command line: python generate_yaml.py -k <path_to_client_secret_key> -i 1qDTcz5tUnEGFoZfyPPtp-2mF6U -s "Row Sup" --cdr-version R1

Other optional command line arguments exist and can be viewed with: python generate_yaml.py -h. These optional arguments allow you to define a range of cells in the sheet to read and the column to use when grouping.

(yaml_env) $ python generate_yaml.py -h
usage: generate_yaml.py [-h] -k KEY_FILE -i SPREADSHEET_ID [-s SHEET_NAME]
                        [-r RANGE] [-o OUTPUT_FILE] [-g COLUMN_ID]
                        [-d SCHEMA_FILE] [-l LOG_PATH] [-c] --cdr-version
                        CDR_VERSION

Google drive yaml prototype. Automatically generates a yaml file from the read
only version of the identified file. Defaults exist for choosing the value to
group around. See https://developers.google.com/sheets/api/quickstart/python
and https://developers.google.com/sheets/api/guides/concepts for information
on configuring required credentials for reading Google Drive files.

optional arguments:
  -h, --help            show this help message and exit
  -k KEY_FILE, --key-file KEY_FILE
                        Filepath to your service account or client secret key
  -i SPREADSHEET_ID, --spreadsheet-id SPREADSHEET_ID
                        Google spreadsheet ID (as seen in URL)
  -s SHEET_NAME, --sheet-name SHEET_NAME
                        Name of the sheet in the spreadsheet to parse. Enclose
                        in quotes if the name contains spaces. If not
                        provided, defaults to all sheets.
  -r RANGE, --range RANGE
                        Range of cells to select in the sheet. If not
                        specified, returns all cell values.
  -o OUTPUT_FILE, --output-file OUTPUT_FILE
                        Name to give the produced yaml file. Always
                        overridden, to create CDR_<version>_YYYYMMDD.yaml
  -g COLUMN_ID, --group-by COLUMN_ID
                        Used to create groupings around fields in a tab. Tabs
                        with 'Field' in the title default to Column B. Tabs
                        with 'Row' in the title default to Column D. Tabs with
                        neither in the title default to Column A. Valid
                        choices are letters A-Z.
  -d SCHEMA_FILE, --schema-file SCHEMA_FILE
                        Path to the schema yaml file. If not provided,
                        defaults to 'schema.yaml'.
  -l LOG_PATH, --log-path LOG_PATH
                        Specify the log file path and/or name. File name
                        should end in '.log'. Defaults to
                        LOGS/generate_yaml.log
  -c, --console-log     Print logs to the console, in addition to the log
                        file.
  --cdr-version CDR_VERSION
                        CDR version number. Used as part of output file name.