KI-AGENT: Erhalte Bankkonten und Buchungszuordnungen beim Import

This reverts commit 30aaf141c7.

backend/src/utils/tenantFullExport.ts

@@ -296,6 +296,65 @@ const insertRows = async (client: any, table: string, rows: Record<string, any>[
     return inserted
 }
 
+const insertIdentityRowsWithRemap = async (
+    client: any,
+    table: string,
+    rows: Record<string, any>[],
+    metadata: TableMetadata
+) => {
+    if (!rows.length) return { count: 0, idMap: new Map<number, number>() }
+
+    let count = 0
+    const idMap = new Map<number, number>()
+    const availableColumns = new Set(metadata.columns.filter((column) => !metadata.generatedColumns.has(column)))
+
+    for (const row of rows) {
+        const sourceId = Number(row.id)
+        if (!sourceId) continue
+
+        const existing = await client.query(`select * from ${quoteIdent(table)} where ${quoteIdent("id")} = $1 limit 1`, [sourceId])
+        const existingTenant = existing.rows[0]?.tenant ?? existing.rows[0]?.tenant_id
+        const rowTenant = row.tenant ?? row.tenant_id
+        const shouldPreserveId = existing.rows.length === 0
+        const shouldReuseExisting = existing.rows.length > 0 && rowTenant && existingTenant === rowTenant
+        const rowForInsert = shouldPreserveId ? row : { ...row, id: undefined }
+        const rowColumns = Object
+            .keys(rowForInsert)
+            .filter((column) => availableColumns.has(column) && typeof rowForInsert[column] !== "undefined")
+
+        if (shouldReuseExisting) {
+            idMap.set(sourceId, sourceId)
+            continue
+        }
+
+        if (!rowColumns.length) continue
+
+        const placeholders = rowColumns.map((_, index) => `$${index + 1}`).join(", ")
+        const values = rowColumns.map((column) => prepareColumnValue(rowForInsert[column], metadata.jsonColumns.has(column)))
+        const inserted = await client.query(
+            `insert into ${quoteIdent(table)} (${rowColumns.map(quoteIdent).join(", ")}) values (${placeholders}) returning ${quoteIdent("id")}`,
+            values
+        )
+        const targetId = Number(inserted.rows[0]?.id)
+        if (targetId) {
+            idMap.set(sourceId, targetId)
+        }
+        count += 1
+    }
+
+    return { count, idMap }
+}
+
+const remapTableColumn = (rows: Record<string, any>[] = [], column: string, idMap: Map<number, number>) => {
+    if (!idMap.size) return
+
+    for (const row of rows) {
+        const currentValue = Number(row[column])
+        const mappedValue = idMap.get(currentValue)
+        if (mappedValue) row[column] = mappedValue
+    }
+}
+
 const refreshSequences = async (client: any, columnsByTable: Map<string, TableMetadata>) => {
     for (const [table, metadata] of columnsByTable.entries()) {
         const { columns } = metadata
@@ -350,7 +409,24 @@ export const importTenantFullExport = async (
         const files = await restoreFiles(exportData)
 
         const importedTables: { table: string; rows: number }[] = []
+        const bankaccountMetadata = columnsByTable.get("bankaccounts")
+        if (bankaccountMetadata) {
+            const result = await insertIdentityRowsWithRemap(client, "bankaccounts", exportData.tables.bankaccounts || [], bankaccountMetadata)
+            remapTableColumn(exportData.tables.bankstatements, "account", result.idMap)
+            importedTables.push({ table: "bankaccounts", rows: result.count })
+        }
+
+        const bankstatementMetadata = columnsByTable.get("bankstatements")
+        if (bankstatementMetadata) {
+            const result = await insertIdentityRowsWithRemap(client, "bankstatements", exportData.tables.bankstatements || [], bankstatementMetadata)
+            remapTableColumn(exportData.tables.statementallocations, "bs_id", result.idMap)
+            remapTableColumn(exportData.tables.historyitems, "bankstatement", result.idMap)
+            importedTables.push({ table: "bankstatements", rows: result.count })
+        }
+
         for (const table of tableNames) {
+            if (["bankaccounts", "bankstatements"].includes(table)) continue
+
             const rows = exportData.tables[table] || []
             const metadata = columnsByTable.get(table)
             if (!metadata) continue