Open a database connection with the given parmeters, if use_default is True, use the
login details from defs.py. This is called by the request handler and is accessible using
the conn global variable. the sql method is also global to run queries
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db.host
- Database host or ‘localhost’
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db.user
- Database user
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db.password
- Database password - cleared after connection is made
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db.is_testing
- 1 if session is in Testing Mode else 0
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db.in_transaction
- 1 if connection is in a Transaction else 0
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db.testing_tables
- list of tables, tables with tab + doctype
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db.connect()
- Connect to a database
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db.use(db_name)
- USE db_name
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db.set_db(account)
- Switch to database of given account
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db.check_transaction_status(query)
- Update in_transaction and check if “START TRANSACTION” is not called twice
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db.fetch_as_dict()
- Internal - get results as dictionary
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db.sql(query, values=(), as_dict = 0, as_list = 0, allow_testing = 1)
- Execute a query, with given values
- returns as a dictionary if as_dict = 1
- returns as a list of lists (with cleaned up dates and decimals) if as_list = 1
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db.convert_to_lists(res)
- Convert the given result set to a list of lists (with cleaned up dates and decimals)
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db.replace_tab_by_test(query)
- Relace all tab + doctype to test + doctype
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db.get_testing_tables()
- Get list of all tables for which tab is to be replaced by test before a query is executed
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db.get_value(doctype, docname, fieldname)
Get a single value from a record.
For Single records, let docname be = None
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db.get_description()
- Get metadata of the last query
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db.field_exists(dt, fn)
- Returns True if fn exists in DocType dt
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db.exists(dt, dn)
- Returns true if the record exists
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db.close()
- Close my connection