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Added methods for creating and dropping a index. #472

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Sep 28, 2017
Merged

Added methods for creating and dropping a index. #472

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b971b71
added methods for creating and dropping a index.
ZhengKeli Sep 18, 2017
a07804c
reformat
ZhengKeli Sep 20, 2017
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20 changes: 20 additions & 0 deletions anko/library/static/sqlite/src/Database.kt
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Original file line number Diff line number Diff line change
Expand Up @@ -90,6 +90,26 @@ fun SQLiteDatabase.dropTable(tableName: String, ifExists: Boolean = false) {
execSQL("DROP TABLE $ifExistsText `$escapedTableName`;")
}

fun SQLiteDatabase.createIndex(indexName: String, tableName: String, unique: Boolean = false, ifNotExists: Boolean = false, vararg columns: String) {
val escapedIndexName = indexName.replace("`", "``")
val escapedTableName = tableName.replace("`", "``")
val ifNotExistsText = if (ifNotExists) "IF NOT EXISTS" else ""
val uniqueText = if (unique) "UNIQUE" else ""
execSQL(
columns.joinToString(
separator = ",",
prefix = "CREATE $uniqueText INDEX $ifNotExistsText `$escapedIndexName` ON `$escapedTableName`(",
postfix = ");"
)
)
}

fun SQLiteDatabase.dropIndex(indexName: String, ifExists: Boolean = false) {
val escapedIndexName = indexName.replace("`", "``")
val ifExistsText = if (ifExists) "IF EXISTS" else ""
execSQL("DROP INDEX $ifExistsText `$escapedIndexName`;")
}

private val ARG_PATTERN: Pattern = Pattern.compile("([^\\\\])\\{([^{}]+)\\}")

internal fun applyArguments(whereClause: String, vararg args: Pair<String, Any>): String {
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