replace helper

elastic · Oct 16, 2020 · 4213b66 · 4213b66
1 parent 62ad2a1
commit 4213b66
Show file tree

Hide file tree

Showing 2 changed files with 57 additions and 0 deletions.
diff --git a/x-pack/plugins/ui_actions_enhanced/public/drilldowns/url_drilldown/url_template.test.ts b/x-pack/plugins/ui_actions_enhanced/public/drilldowns/url_drilldown/url_template.test.ts
@@ -175,6 +175,55 @@ describe('formatNumber helper', () => {
   });
 });
 
+describe('replace helper', () => {
+  test('replaces all occurrences', () => {
+    const url = 'https://elastic.co/{{replace value "replace-me" "with-me"}}';
+
+    expect(compile(url, { value: 'replace-me test replace-me' })).toMatchInlineSnapshot(
+      `"https://elastic.co/with-me%20test%20with-me"`
+    );
+  });
+
+  test('can be used to remove a substring', () => {
+    const url = 'https://elastic.co/{{replace value "Label:" ""}}';
+
+    expect(compile(url, { value: 'Label:Feature:Something' })).toMatchInlineSnapshot(
+      `"https://elastic.co/Feature:Something"`
+    );
+  });
+
+  test('works if no matches', () => {
+    const url = 'https://elastic.co/{{replace value "Label:" ""}}';
+
+    expect(compile(url, { value: 'No matches' })).toMatchInlineSnapshot(
+      `"https://elastic.co/No%20matches"`
+    );
+  });
+
+  test('throws on incorrect args', () => {
+    expect(() =>
+      compile('https://elastic.co/{{replace value "Label:"}}', { value: 'No matches' })
+    ).toThrowErrorMatchingInlineSnapshot(
+      `"[replace]: \\"searchString\\" and \\"valueString\\" parameters expected to be strings, but not a string or missing"`
+    );
+    expect(() =>
+      compile('https://elastic.co/{{replace value "Label:" 4}}', { value: 'No matches' })
+    ).toThrowErrorMatchingInlineSnapshot(
+      `"[replace]: \\"searchString\\" and \\"valueString\\" parameters expected to be strings, but not a string or missing"`
+    );
+    expect(() =>
+      compile('https://elastic.co/{{replace value 4 ""}}', { value: 'No matches' })
+    ).toThrowErrorMatchingInlineSnapshot(
+      `"[replace]: \\"searchString\\" and \\"valueString\\" parameters expected to be strings, but not a string or missing"`
+    );
+    expect(() =>
+      compile('https://elastic.co/{{replace value}}', { value: 'No matches' })
+    ).toThrowErrorMatchingInlineSnapshot(
+      `"[replace]: \\"searchString\\" and \\"valueString\\" parameters expected to be strings, but not a string or missing"`
+    );
+  });
+});
+
 describe('basic string formatting helpers', () => {
   test('lowercase', () => {
     const compileUrl = (value: unknown) =>

diff --git a/x-pack/plugins/ui_actions_enhanced/public/drilldowns/url_drilldown/url_template.ts b/x-pack/plugins/ui_actions_enhanced/public/drilldowns/url_drilldown/url_template.ts
@@ -103,6 +103,14 @@ handlebars.registerHelper('mid', (rawValue: unknown, start: number, length: numb
   if (typeof length !== 'number') throw new Error('[left]: expected "length" to be a number');
   return String(rawValue).substr(start, length);
 });
+handlebars.registerHelper('replace', (...args) => {
+  const [str, searchString, valueString] = args.slice(0, -1) as [string, string, string];
+  if (typeof searchString !== 'string' || typeof valueString !== 'string')
+    throw new Error(
+      '[replace]: "searchString" and "valueString" parameters expected to be strings, but not a string or missing'
+    );
+  return String(str).split(searchString).join(valueString);
+});
 
 export function compile(url: string, context: object): string {
   const template = handlebars.compile(url, { strict: true, noEscape: true });