Initial commit - Event Planner application

node_modules/kysely/dist/esm/dialect/mssql/mssql-query-compiler.js

@@ -0,0 +1,80 @@
+/// <reference types="./mssql-query-compiler.d.ts" />
+import { DefaultQueryCompiler } from '../../query-compiler/default-query-compiler.js';
+const COLLATION_CHAR_REGEX = /^[a-z0-9_]$/i;
+export class MssqlQueryCompiler extends DefaultQueryCompiler {
+    getCurrentParameterPlaceholder() {
+        return `@${this.numParameters}`;
+    }
+    visitOffset(node) {
+        super.visitOffset(node);
+        this.append(' rows');
+    }
+    // mssql allows multi-column alterations in a single statement,
+    // but you can only use the command keyword/s once.
+    // it also doesn't support multiple kinds of commands in the same
+    // alter table statement, but we compile that anyway for the sake
+    // of WYSIWYG.
+    compileColumnAlterations(columnAlterations) {
+        const nodesByKind = {};
+        for (const columnAlteration of columnAlterations) {
+            if (!nodesByKind[columnAlteration.kind]) {
+                nodesByKind[columnAlteration.kind] = [];
+            }
+            nodesByKind[columnAlteration.kind].push(columnAlteration);
+        }
+        let first = true;
+        if (nodesByKind.AddColumnNode) {
+            this.append('add ');
+            this.compileList(nodesByKind.AddColumnNode);
+            first = false;
+        }
+        // multiple of these are not really supported by mssql,
+        // but for the sake of WYSIWYG.
+        if (nodesByKind.AlterColumnNode) {
+            if (!first)
+                this.append(', ');
+            this.compileList(nodesByKind.AlterColumnNode);
+        }
+        if (nodesByKind.DropColumnNode) {
+            if (!first)
+                this.append(', ');
+            this.append('drop column ');
+            this.compileList(nodesByKind.DropColumnNode);
+        }
+        // not really supported by mssql, but for the sake of WYSIWYG.
+        if (nodesByKind.ModifyColumnNode) {
+            if (!first)
+                this.append(', ');
+            this.compileList(nodesByKind.ModifyColumnNode);
+        }
+        // not really supported by mssql, but for the sake of WYSIWYG.
+        if (nodesByKind.RenameColumnNode) {
+            if (!first)
+                this.append(', ');
+            this.compileList(nodesByKind.RenameColumnNode);
+        }
+    }
+    visitAddColumn(node) {
+        this.visitNode(node.column);
+    }
+    visitDropColumn(node) {
+        this.visitNode(node.column);
+    }
+    visitMergeQuery(node) {
+        super.visitMergeQuery(node);
+        this.append(';');
+    }
+    visitCollate(node) {
+        this.append('collate ');
+        const { name } = node.collation;
+        for (const char of name) {
+            if (!COLLATION_CHAR_REGEX.test(char)) {
+                throw new Error(`Invalid collation: ${name}`);
+            }
+        }
+        this.append(name);
+    }
+    announcesNewColumnDataType() {
+        return false;
+    }
+}