OMOP/R/writeDDL.R

38 lines
1.7 KiB
R

# Copyright 2019 Observational Health Data Sciences and Informatics
#
# This file is part of DDLGeneratr
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
#' Write DDL script
#'
#' @param targetdialect The dialect of the target database. Choices are "oracle", "postgresql", "pdw", "redshift", "impala", "netezza", "bigquery", "sql server"
#' @param cdmVersion The version of the CDM for which you are creating the DDL. e.g. 5.3.1
#' @param cdmDatabaseSchema The schema of the CDM instance where the DDL will be run. For example, this would be "ohdsi.dbo" when testing on sql server.
#' Defaults to "@cdmDatabaseSchema"
#'
#' @export
writeDDL <- function(targetdialect, cdmVersion, cdmDatabaseSchema = "@cdmDatabaseSchema") {
outputpath <- file.path("ddl", cdmVersion, targetdialect)
dir.create(outputpath, showWarnings = FALSE, recursive = TRUE)
sql <- createDdl(cdmVersion)
sql <- SqlRender::render(sql = sql, cdmDatabaseSchema = cdmDatabaseSchema, targetdialect = targetdialect)
sql <- SqlRender::translate(sql, targetDialect = targetdialect)
filename <- paste("OMOPCDM", targetdialect, cdmVersion, "ddl.sql", sep = "_")
SqlRender::writeSql(sql = sql,
targetFile = file.path(outputpath, filename)
)
}