feat(database): add check for empty table names #80

Add a check to ensure that the list of table names is not empty before generating the SQL script. If the list is empty, set the progress indicator fraction to 1.0 and log a warning message. Also, add a new function `getAllTables()` to retrieve all table names from `actions.dasTables`.

Author: phodal

exts/database/src/main/kotlin/cc/unitmesh/database/actions/GenSqlScriptBySelection.kt

@@ -87,7 +87,6 @@ class GenSqlScriptBySelection : AbstractChatIntention() {
             override fun run(indicator: ProgressIndicator) {
                 indicator.fraction = 0.2
 
-
                 indicator.text = AutoDevBundle.message("migration.database.sql.generate.clarify")
                 val tables = flow.clarify()
 
@@ -96,6 +95,13 @@ class GenSqlScriptBySelection : AbstractChatIntention() {
                 val tableNames = tables.substringAfter("[").substringBefore("]")
                     .split(", ").map { it.trim() }
 
+                if (tableNames.isEmpty()) {
+                    indicator.fraction = 1.0
+                    val allTables = flow.getAllTables()
+                    logger.warn("no table related: $allTables")
+                    return
+                }
+
                 indicator.fraction = 0.6
                 indicator.text = AutoDevBundle.message("migration.database.sql.generate.generate")
                 val sqlScript = flow.generate(tableNames)
@@ -187,6 +193,10 @@ class GenSqlFlow(
         logger.info("Prompt: $prompter")
         return prompter
     }
+
+    fun getAllTables(): List<String> {
+        return actions.dasTables.map { it.name }
+    }
 }