56 lines
1.8 KiB
R
56 lines
1.8 KiB
R
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cdmVersion <- '5.4'
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cdmPart <- c('CDM','VOCAB', 'RESULTS')
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cdmTableCsvLoc <- system.file(file.path("csv", paste0("OMOP_CDMv", cdmVersion, "_Table_Level.csv")), package = "CommonDataModel", mustWork = TRUE)
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cdmFieldCsvLoc <- system.file(file.path("csv", paste0("OMOP_CDMv", cdmVersion, "_Field_Level.csv")), package = "CommonDataModel", mustWork = TRUE)
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tableSpecs <- read.csv(cdmTableCsvLoc, stringsAsFactors = FALSE)
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cdmSpecs <- read.csv(cdmFieldCsvLoc, stringsAsFactors = FALSE)
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mermaidDdlLines <- c()
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mermaidFkLines <- c()
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for (i in 1:nrow(tableSpecs)) {
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table <- tableSpecs[i,]
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tableName <- table$cdmTableName
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if (!(table$schema %in% cdmPart)) {
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next
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}
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mermaidDdlLines <- c(mermaidDdlLines,
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sprintf(' %s {', tableName))
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fields <- subset(cdmSpecs, cdmTableName == tableName)
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for (j in 1:nrow(fields)) {
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field <- fields[j,]
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cdmFieldName <- field$cdmFieldName
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cdmDataType <- field$cdmDatatype
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if (startsWith(cdmDataType, 'varchar')) {
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cdmDataType <- 'varchar'
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}
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if (cdmFieldName == '"offset"') {
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cdmFieldName <- 'offset'
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}
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mermaidDdlLines <- c(mermaidDdlLines,
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sprintf(' %s %s', cdmFieldName, cdmDataType))
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if (field$isForeignKey == 'Yes') {
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fkTable <- subset(tableSpecs, cdmTableName == field$fkTableName)
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if (!(fkTable$schema %in% cdmPart)) {
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next
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}
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fkRelation <- sprintf(' %s ||--o{ %s : ""', tableName, field$fkTableName)
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if (fkRelation %in% mermaidFkLines) {
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next
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}
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mermaidFkLines <- c(mermaidFkLines,
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fkRelation)
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}
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}
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mermaidDdlLines <- c(mermaidDdlLines, ' }')
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}
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mermaidString <- paste(c('erDiagram', mermaidDdlLines, mermaidFkLines), collapse = '\n')
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fileName <- sprintf('OMOP_CDMv%s_ER_Diagram.mmd', cdmVersion)
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write(mermaidString, file.path('extras', fileName))
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