Add docs for a few functions

Signed-off-by: David Arendsen <darendsen@gamepoint.com>

docs/04-functions.md

@@ -4,10 +4,14 @@
 
 On this page you will find the methods you can use in the query builder.
 
+* [from()](functions/from.md)
+* [fromBucket()](functions/fromBucket.md)
+* [fromMeasurement()](functions/fromMeasurement.md)
 * [addAggregateWindow()](functions/addAggregateWindow.md)
 * [addDuplicate()](functions/addDuplicate.md)
 * [addGroup()](functions/addGroup.md)
 * [addLimit()](functions/addLimit.md)
 * [addMean()](functions/addMean.md)
-* [addRange()](functions/addRange.md)
+* [addRangeStart()](functions/addRangeStart.md)
+* [addRangeInBetween()](functions/addRangeInBetween.md)
 * [addRawFunction()](functions/addRawFunction.md)

docs/functions/addRangeInBetween.md

@@ -0,0 +1,51 @@
+# Flux Query Builder Docs
+
+## Functions » addRangeInBetween()
+
+### Parameters:
+
+<table>
+  <tbody>
+    <tr>
+      <th>Name</th>
+      <th>Required</th>
+      <th>Data type</th>
+      <th>Description</th>
+    </tr>
+    <tr>
+      <td>start</td>
+      <td>Yes</td>
+      <td>DateTime</td>
+      <td>Earliest time to include in results.</td>
+    </tr>
+    <tr>
+      <td>stop</td>
+      <td>Yes</td>
+      <td>DateTime</td>
+      <td>Latest time to include in results. Default is the current time.</td>
+    </tr>
+  </tbody>
+</table>
+
+
+### Example
+
+```php
+->addRangeInBetween(
+    new DateTime('2022-08-12 18:00:00'),
+    new DateTime('2022-08-12 20:00:00')
+)
+```
+
+This will result in the following Flux function part:
+
+```
+|> range(
+  start: time(v: 2022-08-12T18:00:00Z), 
+  stop: time(v: 2022-08-12T20:00:00Z)
+)
+```
+
+### Extra resources
+
+* [Flux documentation](https://docs.influxdata.com/flux/v0.x/stdlib/universe/range/)

docs/functions/addRangeStart.md

@@ -0,0 +1,43 @@
+# Flux Query Builder Docs
+
+## Functions » addRangeStart()
+
+### Parameters:
+
+<table>
+  <tbody>
+    <tr>
+      <th>Name</th>
+      <th>Required</th>
+      <th>Data type</th>
+      <th>Description</th>
+    </tr>
+    <tr>
+      <td>start</td>
+      <td>Yes</td>
+      <td>DateTime</td>
+      <td>Earliest time to include in results.</td>
+    </tr>
+  </tbody>
+</table>
+
+
+### Example
+
+```php
+->addRangeStart(
+    new DateTime('2022-08-12 18:00:00')
+)
+```
+
+This will result in the following Flux function part:
+
+```
+|> range(
+  start: time(v: 2022-08-12T18:00:00Z)
+)
+```
+
+### Extra resources
+
+* [Flux documentation](https://docs.influxdata.com/flux/v0.x/stdlib/universe/range/)

docs/functions/from.md

@@ -0,0 +1,49 @@
+# Flux Query Builder Docs
+
+## Functions » from()
+
+### Parameters:
+
+<table>
+  <tbody>
+    <tr>
+      <th>Name</th>
+      <th>Required</th>
+      <th>Data type</th>
+      <th>Description</th>
+    </tr>
+    <tr>
+      <td>settings</td>
+      <td>Yes</td>
+      <td>array</td>
+      <td>Settings to retrieve a data source.</td>
+    </tr>
+  </tbody>
+</table>
+
+
+### Example
+
+```php
+->from([
+  'bucket' => 'test_bucket',
+  'host' => 'https://us-west-2-1.aws.cloud2.influxdata.com',
+  'org' => 'example-org',
+  'token' => 'token'
+])
+```
+
+This will result in the following Flux function part:
+
+```
+|> from(
+    bucket: "test_bucket",
+    host: "https://us-west-2-1.aws.cloud2.influxdata.com",
+    org: "example-org",
+    token: "token",
+)
+```
+
+### Extra resources
+
+* [Flux documentation](https://docs.influxdata.com/flux/v0.x/stdlib/universe/from/)

docs/functions/fromBucket.md

@@ -0,0 +1,39 @@
+# Flux Query Builder Docs
+
+## Functions » fromBucket()
+
+### Parameters:
+
+<table>
+  <tbody>
+    <tr>
+      <th>Name</th>
+      <th>Required</th>
+      <th>Data type</th>
+      <th>Description</th>
+    </tr>
+    <tr>
+      <td>bucket</td>
+      <td>Yes</td>
+      <td>string</td>
+      <td>The bucket you want to retrieve data from.</td>
+    </tr>
+  </tbody>
+</table>
+
+
+### Example
+
+```php
+->fromBucket('test_bucket')
+```
+
+This will result in the following Flux function part:
+
+```
+|> from(bucket: "test_bucket")
+```
+
+### Extra resources
+
+* [Flux documentation](https://docs.influxdata.com/flux/v0.x/stdlib/universe/from/)

docs/functions/fromMeasurement.md

@@ -0,0 +1,39 @@
+# Flux Query Builder Docs
+
+## Functions » fromMeasurement()
+
+### Parameters:
+
+<table>
+  <tbody>
+    <tr>
+      <th>Name</th>
+      <th>Required</th>
+      <th>Data type</th>
+      <th>Description</th>
+    </tr>
+    <tr>
+      <td>measurement</td>
+      <td>Yes</td>
+      <td>string</td>
+      <td>The measurement to filter on.</td>
+    </tr>
+  </tbody>
+</table>
+
+
+### Example
+
+```php
+->fromMeasurement('test_measurement')
+```
+
+This will result in the following Flux function part:
+
+```
+|> filter(fn: (r) => r._measurement == "test_measurement")
+```
+
+### Extra resources
+
+* [Flux documentation](https://docs.influxdata.com/flux/v0.x/stdlib/universe/filter/)