Created
July 31, 2021 13:18
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A groovy script to generate typescript definitions in Jetbrains IDE's. Put this file in your \JetBrains\{ProductName}\extensions\com.intellij.database\schema directory, and right click a database table > scripted extensions to use it
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| import com.intellij.database.model.DasTable | |
| import com.intellij.database.util.Case | |
| import com.intellij.database.util.DasUtil | |
| /* | |
| * Available context bindings: | |
| * SELECTION Iterable<DasObject> | |
| * PROJECT project | |
| * FILES files helper | |
| */ | |
| typeMapping = [ | |
| (~/(?i)int/) : "number", | |
| (~/(?i)float|double|decimal|real/): "number", | |
| (~/(?i)timestamp/) : "number", | |
| (~/(?i)datetime|date/) : "Date", | |
| (~/(?i)time/) : "string", | |
| (~/(?i)text/) : "string", | |
| (~/(?i)jsonb/) : 'Object', | |
| (~/(?i)/) : 'unknown' | |
| ] | |
| arrayModMapping = [ | |
| (~/(?i)\[\]/) : '[]', | |
| (~/(?i)/) : "", | |
| ] | |
| FILES.chooseDirectoryAndSave("Choose directory", "Choose where to store generated definition file") { dir -> | |
| SELECTION.filter { it instanceof DasTable }.each { generate(it, dir) } | |
| } | |
| def generate(table, dir) { | |
| def className = javaName(table.getName(), true) | |
| def fields = calcFields(table) | |
| new File(dir, "I${className}DatabaseItem.ts").withPrintWriter { out -> generate(out, className, fields) } | |
| } | |
| def generate(out, className, fields) { | |
| out.println "// generated typescript definitions from database using groovy script" | |
| out.println "" | |
| out.println "export interface I${className}DatabaseItem {" | |
| fields.each() { | |
| out.println "\t${it.name}?: ${it.type}${it.arrayMod};" | |
| } | |
| out.println "}" | |
| out.println "" | |
| out.println "export interface I${className}Item {" | |
| fields.each() { | |
| out.println "\t${it.typeScriptName}?: ${it.type}${it.arrayMod};" | |
| } | |
| out.println "}" | |
| out.println "" | |
| out.println "export function convert${className}DatabaseItemToItem(databaseItem: I${className}DatabaseItem): I${className}Item {" | |
| out.println "\tconst item = {" | |
| fields.each() { | |
| out.println "\t\t${it.typeScriptName}: databaseItem.${it.name}," | |
| } | |
| out.println "\t}" | |
| out.println "\treturn item;" | |
| out.println "}" | |
| } | |
| def calcFields(table) { | |
| DasUtil.getColumns(table).reduce([]) { fields, col -> | |
| def spec = Case.LOWER.apply(col.getDataType().getSpecification()) | |
| def typeStr = typeMapping.find { p, t -> p.matcher(spec).find() }.value | |
| def arrayMod = arrayModMapping.find {p, t -> p.matcher(spec).find() }.value | |
| fields += [[ | |
| name : col.getName(), | |
| typeScriptName: getTypeScriptName(col.getName(), false), | |
| type : typeStr, | |
| arrayMod: arrayMod]] | |
| } | |
| } | |
| def getTypeScriptName(str, capitalize) { | |
| def s = com.intellij.psi.codeStyle.NameUtil.splitNameIntoWords(str) | |
| .collect { Case.LOWER.apply(it).capitalize() } | |
| .join("") | |
| .replaceAll(/[^\p{javaJavaIdentifierPart}[_]]/, "_") | |
| capitalize || s.length() == 1? s : Case.LOWER.apply(s[0]) + s[1..-1] | |
| } |
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