wundermatics

nick6352683

<p>Adds a formula fields ot Advanced Custom Fields that allows you to perform simple math based on field values. Calculations are updated dynamically via ajax while editing a post on the backend post editor as well as on front end forms.</p>
<h3>Requirements</h3>
<p>Calculated fields requires Advanced Custom Fields 5.0 or later and works with Pro as well as the standard version.</p>
<h3>Frontend forms</h3>
<p>Beginning in version 1.2.3, Calculated fields for ACF supports frontend forms created using the acf_form() function (built in to Advanced Custom Fields).</p>
<h4>Formulas</h4>
<p>Calculated fields adds a new setting “Formula” to the the ACF field editor. Formulas supports referring to other fields in the same Field group using the field name. If a formula is added to a sub field inside a repeater field, the name refers to another sub field in the same repeater.</p>
<p>A sub field inside a repeater field can also refer to a parent field using the “parent.”” prefix.</p>
<p>A formula can contain the basic mathematical operations: plus (+), minus (-), multiply (*), division (/) and power of (^). Formulas can also contains functions like sin, cos, arcsin, log, ln, sqrt, abs. Parentheses are supported.</p>
<p>If an expression can’t be evaluated due to invalid syntax or referring to undefined field names, it will silently return zero.</p>
<p>Examples of valid expressions (note, no equal sign at the beginning):</p>
<ul>
<li>fieldA * 2</li>
<li>fieldA * fieldB</li>
<li>abs(fieldA) * (2 + sqrt(fieldB))</li>
<li>amount * parent.price</li>
</ul>
<h4>Conditional operators</h4>
<p>An expression can also contain a conditional expression that will return either 0 or 1. The supported operators are:</p>
<ul>
<li>Equals (==) – Returns 1 when two values are equal, 0 otherwise</li>
<li>Not equals (!=) – Returns 1 when two values are not equal, 0 otherwise</li>
<li>Greater than (>) – Returns 1 when the first operand is greater than the second, 0 otherwise</li>
<li>Greater than or equal (>=) – Returns 1 when the first operand is greater than or equal to the second, 0 otherwise</li>
<li>Less than (<) – Returns 1 when the first operand is less than the second, 0 otherwise</li>
<li>Less than or equal (<=) – Returns 1 when the first operand is less than or equal to the second, 0 otherwise</li>
</ul>
<p>Examples of valid expressions using conditional operators:</p>
<ul>
<li>10 == 10 (returns 1)</li>
<li>10 == 2 (returns 0)</li>
<li>10 > 2 (returns 1)</li>
<li>10 < 2 (returns 0)</li>
<li>10 <= 10 (returns 1)</li>
</ul>
<h4>Rounding functions</h4>
<p>Round a decimal value to the nearest integer. Supported functions are:</p>
<ul>
<li>round() – Uses standard mathematical rounding rules to round to nearest integer</li>
<li>ceil() – Rounds the value to the next higher integer</li>
<li>floor() – Rounds the value to the next lower integer</li>
</ul>
<p>Examples of valid expressions using rounding functions:</p>
<ul>
<li>round(10.2) (returns 10)</li>
<li>round(10.9)  (returns 11)</li>
<li>round(10.888888 * 10) / 10 (returns 10.9)</li>
<li>ceil(10.2) (returns 11)</li>
<li>floor(10.2) (returns 10)</li>
</ul>
<p>Note that the round() function only takes one parameter and always round to an integer. If you need to round to a higher precision, multiply and divide as shown in third example above.</p>
<h4>Group fields (new from 1.2.4)</h4>
<p>Fields defined as part of a group, subfields, can be addressed using the group name as a prefix. Inside the group, a field defined on the parent level can be addressed using the “parent” prefix. See examples below:</p>
<p>Valid formula to use the value of field “foobar” defined inside the group “group2”:<br />
* group2.foobar + 10</p>
<p>Valid formula in a field inside a group (assuming the parent has a field named count):<br />
* parent.count * 22</p>
<h4>Array functions for repeater fields</h4>
<p>If repeater fields are used, a calculated field in the parent field group can summarize a specific repeater sub fields using the aggregation functions sum, count, average, min or max. For example, the expression: “Sum(orderlines.amount)”” will return the sum of all the “amount” fields in the repeater field “orderlines”.</p>
<p>The available array functions are:</p>
<ul>
<li>sum()</li>
<li>average()</li>
<li>count()</li>
<li>min()</li>
<li>max()</li>
</ul>
<p>Note that anything after the dot (.) in the aggregate expression is an expression in itself. It’s perfectly OK to write a formula like: “Sum(orderlines.price * amount)”. This expression will walk over all lines in the “orderlines” repeater field, perform the calculation “price * amount” and return the sum of all lines.</p>
<p>Note that when working with aggregate functions, parentheses can not be used. If you need to aggregate a more complex calculation, you should add an extra field in the repeater group and let the aggregate function work on this extra field.</p>
<h4>Data type and calculation order</h4>
<p>Calculated fields works with the assumption that all fields are defined as numeric in the ACF editor. Using a text field in a formula WILL PRODUCE UNPREDICTABLE RESULTS.</p>
<p>Calculations are made as the custom field is stored to the database. To minimize the impact of performance, Calculated fields rely on field order. A formula field can only refer to fields ordered BEFORE itself. A formula field that refers to a field ordered after it WILL PRODUCE UNPREDICTABLE RESULTS.</p>


Calculated fields for ACF

A very pedantic developer. Thank You for your attention to detail.

Classwork!

Simple field math for Advanced Custom Fields.

CodeFish

<p>This plugin creates a new field for <a href="https://wordpress.org/plugins/advanced-custom-fields/" title="Advanced Custom Fields" rel="ugc">Advanced Custom Fields (ACF)</a><br />
extending the functionality of the built-in Google Map field with several handy features:</p>
<ul>
<li>Saves map center. You can center your maps wherever you want and indicate that you want to save that place as map center. This can be handy, if you want your front-end map to show some specific place in the center of the map (not necessary the location marker).</li>
<li>Saves zoom level.</li>
<li>Disables (optionally) map zooming with a scrollwheel. Sometimes you can get annoyed with your maps starting to zoom, when you scroll the post in the admin area. This feature comes handy here.</li>
<li>Shows location coordinates. It is easy to get any place’s location coordinates (latitude and longitude) with this plugin by setting a marker to the place you need using user friendly map interface.</li>
<li>Compatible with the data format of the Google Map field coming with ACF. See F.A.Q. for details.</li>
<li>Saves all maps shown at a page in the global array. This is a bonus for programmers. See F.A.Q. for details.</li>
</ul>
<p>The plugin makes use of the Google Maps API version 3.<br />
The plugin doesn’t use an API key and is therefore operating under the <a href="https://developers.google.com/maps/faq#usage_pricing" rel="nofollow ugc">restrictions of the free Google Maps API</a>,<br />
which should be more than enough for most websites.</p>
<h4>Compatibility</h4>
<p>This ACF field type is compatible with:</p>
<ul>
<li>ACF 4</li>
<li>ACF 5 (PRO version)</li>
<li>Google Map field coming with ACF 4/5. See F.A.Q.</li>
</ul>
<h4>Translations</h4>
<p>The plugin is translated to:</p>
<ul>
<li>French</li>
<li>German</li>
<li>Netherlands</li>
<li>Russian</li>
<li>Ukrainian</li>
</ul>
<p>There is a POT file under the <code>lang</code> directory holding all translation strings, so it should be pretty easy to translate to other languages.</p>
<h4>Website</h4>
<p>http://code.fish</p>
<h4>Please Vote and Enjoy</h4>
<p>Your votes really make a difference! Thanks.</p>
<h4>License</h4>
<p>This plugin is licensed under the GPLv2. See http://www.gnu.org/licenses/gpl-2.0.html</p>


ACF: Google Map Extended

Fantastic plugin that adds much-needed functionality to the ACF Google Map field. I appreciate that the array of key-value pairs is saved in exactly the same way as the default Google Map field, but with the addition of values for zoom, center_lat, and center_lng:
array(
  'address' => '',
  'lat' => '',
  'lng' => '',
  'zoom' => '',
  'center_lat' => '',
  'center_lng' => '',
)
Ultimately this data allows you to recreate the exact Google Map that the user creates in WP Admin on the front-end of your site - something that simply isn't possible with the default ACF Google Map field. Keep up the great work!



A More Powerful ACF Google Maps Field

ACF field. Saves map center, zoom level. Disables map zooming on scroll. Shows location coordinates. Bonus for programmers.

Calculated fields for ACF vs ACF: Google Map Extended