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Generate Squash classes from existing DB table
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import com.intellij.database.model.DasTable | |
import com.intellij.database.model.ObjectKind | |
import com.intellij.database.util.Case | |
import com.intellij.database.util.DasUtil | |
/* | |
* Available context bindings: | |
* SELECTION Iterable<DasObject> | |
* PROJECT project | |
* FILES files helper | |
*/ | |
packageName = "com.sample;" | |
typeMapping = [ | |
(~/(?i)int/) : "Int", | |
(~/(?i)float|double|decimal|real/): "Double", | |
(~/(?i)numeric/) : "BigDecimal", | |
(~/(?i)datetime|timestamp/) : "java.sql.Timestamp", | |
(~/(?i)date/) : "java.sql.Date", | |
(~/(?i)time/) : "java.sql.Time", | |
(~/(?i)/) : "String" | |
] | |
squashTypeMapping = [ | |
(~/(?i)int/) : "integer", | |
(~/(?i)float|double|decimal|real/): "decimal", | |
(~/(?i)numeric/) : "decimal", | |
(~/(?i)datetime|timestamp/) : "datetime", | |
(~/(?i)date/) : "date", | |
(~/(?i)time/) : "time", | |
(~/(?i)/) : "text" | |
] | |
FILES.chooseDirectoryAndSave("Choose directory", "Choose where to store generated files") { dir -> | |
SELECTION.filter { it instanceof DasTable && it.getKind() == ObjectKind.TABLE }.each { generate(it, dir) } | |
} | |
def generate(table, dir) { | |
def className = javaName(table.getName().replace("al_", ""), true) | |
def fields = calcFields(table) | |
new File(dir, className + ".kt").withPrintWriter { out -> generateDataClass(out, className, fields) } | |
new File(dir, className + "Table.kt").withPrintWriter { out -> generateTable(out, table.getName(), className, fields) } | |
new File(dir, className + "DAO.kt").withPrintWriter { out -> generateDAO(out, className, fields) } | |
} | |
def generateDataClass(out, className, fields) { | |
out.println "package $packageName" | |
out.println "" | |
out.println "" | |
out.println "data class ${className}(" | |
fields.each() { | |
if (it.annos != "") out.println " ${it.annos}" | |
out.println " val ${it.name}: ${it.type}," | |
} | |
out.println ")" | |
} | |
def generateTable(out, tableName, className, fields) { | |
out.println "package $packageName" | |
out.println "" | |
out.println "import org.jetbrains.squash.definition.*" | |
out.println "" | |
out.println "object ${className}Table: TableDefinition(\"$tableName\") {" | |
fields.each() { | |
if (it.annos != "") out.println " ${it.annos}" | |
out.println " val ${it.name} = ${it.squashType}(\"$it.column\")" | |
} | |
out.println "}" | |
} | |
def generateDAO(out, className, fields) { | |
out.println "package $packageName" | |
out.println "" | |
out.println "import org.jetbrains.squash.results.ResultRow" | |
out.println "" | |
out.println "class ${className}DAO {" | |
out.println "" | |
out.println "private fun map${className}(row: ResultRow): $className {" | |
out.println " with(${className}Table) { " | |
out.println " return $className(" | |
fields.each() { | |
if (it.annos != "") out.println " ${it.annos}" | |
out.println " ${it.name} = row[${it.name}]," | |
} | |
out.println " )" | |
out.println " }" | |
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 squashTypeStr = squashTypeMapping.find { p, t -> p.matcher(spec).find() }.value | |
fields += [[ | |
name : javaName(col.getName(), false), | |
column: col.getName(), | |
type : typeStr, | |
squashType: squashTypeStr, | |
annos: ""]] | |
} | |
} | |
def javaName(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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