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Module: Matrix Fieldtype & Inputfield

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FieldtypeMatrix and InputfieldMatrix

Modules Directory: http://modules.processwire.com/modules/fieldtype-matrix/

GitHub: https://github.com/kongondo/FieldtypeMatrix 

The module Matrix enables you to save data from a 2D-Matrix table. The rows and columns of the matrix table are made up of pages retrieved via a ProcessWire selector or via a page field selection of parent pages. The matrix values are made up of the data input in the matrix cells, i.e. the 'intersection of rows and columns'.
 
Example Usage
You have Products whose prices vary depending on colour, size, material, etc. Using the Fieldtype, you can create a table with rows made up of colours and columns made up of sizes the combination of each making up their respective values (in this case price). So rather than creating multiple text fields to do the following:

Colour		Size		Price
Red		Small		£10
Red		Medium		£20
Red		Large		£30
Red		X-large		£35
Green		Small		£9
Green		Medium		£15
Etc...

You can instead have the following in one field:

		Small		Medium		Large 		X-Large
Red		£10		£20		£30		£35
Green		£9		£15
Blue		Etc...
Yellow
Purple

If you set a selector in the Field's settings, to retrieve pages to build your matrix's rows and columns, it follows that all pages using the template the Fieldtype is attached to will have identical rows and columns. In some cases, this could be the intention. For instance, you might have 'Car' pages, e.g. Audi, Volvo, Ford, Citroen, Mazda, BWM, etc., each of which uses a 'Cars' template that has a single FiedltypeMatrix called 'car_attributes'. If you set a selector to build the Fieldtype's rows and columns, your users can easily compare the cars based on a combination of different values. The following matrix table best illustrates this:

        Type            Engine Size Fuel Efficiency Carbon Emissions  Warranty  Road Tax  Price
1994   Audi brand 1    values, etc.            
2000   Audi brand 2             
2006   Audi brand 3              
2012   Audi brand 4            
             

Each of your car pages would have similar matrices. 

This allows you to make easy but powerful queries. Such a setup allows you to compare within and across car brands. Say you wanted to find out which car(s) offered the best value for money given certain parameters such as warranty, emissions etc. You can easily make such comparisons (see code below). You can also compare within one car type, e.g. which brand of BMWs does best in what area...The possibilities are endless.

In the database, Rows and column pages data are stored as their respective page->id. Matrix-values store any data (varchar(255)).

 
If instead you wanted a template's pages to each have a matrix built of different rows and columns, you would have to name a Multiple Page Field (attached to the same template as the as your matrix field) in the matrix field's settings. When editing those pages, your matrix table's rows and columns will be built using the published children pages of the 2 pages you select in the Multiple page field..
 
The module allows the creation of matrix tables of any sizes (rows x columns). The rows and columns dynamically grow/shrink depending on the addition of row/column pages that match what you set in the matrix field's settings (see its 'Details Tab'). Please note that, if such pages are deleted/trashed/hidden/unpublished, their data (and presence) in the matrix are also deleted.

Entering values in the matrix

You have three choices:

  • Manually entry
  • Uploading a comma delimited (CSV) file. This can be delimited by other characters (tab, pipe, etc); not just commas
  • Copy-pasting CSV values. (Tip: you can copy paste directly from an Excel spreadsheet. Such values will be 'tab-delimited').

In addition, if your server supports it, in the field's settings, you can enable the use of MySQL's fast LOAD DATA INFILE to read and save your submitted CSV values.

Note that for large tables, you may have to increase your PHP's max_input_vars from the default 1000 otherwise PHP will timeout/return an error and your values will not be saved. I have successfully tested the module with up to ~3000+ values (10x350 table), the Fieldtype is not really optimised (nor was it intended) to handle mega large matrix tables. For such, you might want to consider other strategies. 

 
Install
Install as any other module.
 
API + Output
A typical output case for this module would work like this:
 
The matrix's rows, columns and values are subfields of your matrix's field. So, if you created a field called 'products' of the type FieldtypeMatrix, you can access as:

product.row, product.column and product.value respectively

 

foreach($page->matrix as $m) {
  echo "
    <p>
    Colour: $m->row<br />
    Size: $m->column<br />
    Price: $m->value
    </p>
    ";
}

Of if you want to output a matrix table in the frontend: 
 

//create array to build matrix
$products = array();

foreach($page->matrix as $m) $products[$m->row][$m->column] = $m->value;

$tbody ='';//matrix rows
$thcols = '';//matrix table column headers

$i = 0;//set counter not to output extraneous column label headers
$c = true;//set odd/even rows class
foreach ($products as $row => $cols) {

          //matrix table row headers (first column)
          $rowHeader = $pages->get($row)->title;

          $tbody .= "<tr" . (($c = !$c) ? " class='even' " : '') . "><td class='MatrixRowHeader'>" . $rowHeader . "</td>";

          $count = count($cols);//help to stop output of extra/duplicate column headers

          foreach ($cols as $col => $value) {

                    //matrix table column headers
                    $columnHeader = $pages->get($col)->title;

                    //avoid outputting extra duplicate columns
                    if ($i < $count) $thcols .= "<th class='MatrixColumnHeader'>" . $columnHeader . "</th>";

                    //output matrix values
                    $currency = $value > 0 ? '£' : '';
                    $tbody .= "<td>" . $currency . $value . "</td>";

                    $i++;

          }

          $tbody .= "</tr>";

}

//final matrix table for output
 $tableOut =   "<table class='Matrix'>
                <thead>
                  <tr class=''>
                    <th></th>
                    $thcols
                   </tr>
                </thead>
                <tbody>
                  $tbody
                </tbody>
            </table>";

echo $tableOut;

The module provides a default rendering capability as well, so that you can also do this (below) and get a similar result as the first example above (without the captions). 

echo $page->matrix;

Or this

foreach($page->matrix as $m) {
         echo $m; 
}

Finding matrix items
The fieldtype includes indexed row, column and value fields. This enables you to find matrix items by either row types (e.g. colours) or columns (e.g. sizes) or their values (e.g. price) or a combination of some/all of these. For instance:

//find all pages that have a matrix value of less than 1000
$results = $pages->find("products.value<1000"); 
//find some results in the matrix (called products) of this page
$results = $page->products->find("column=$country, value=Singapore");//or
$page->products->find("column=$age, value>=25");
//$country and $age would be IDs of two of your column pages

Other more complex queries are possible, e.g. find all products that are either red or purple in colour, come in x-large size and are priced less than $50.

Credits
@Ryan on whose Fieldtype/InptufieldEvents this is largely based
@charger and @sakkoulas for their matrix ideas
 
Screens
 
Field Details Tab
matrix-fieldtype-selector.png
 
Inputfield
matrix-inputfield.png

Larger matrix table

matrix-csv-100x10-values.png
 
Example output
matrix-table-output.png

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Some follow up questions here about select row/column pages per page vs per field:

Coming soon...pls wait...

Resolved this (answered my own questions :-)) see below update..

Edited by kongondo

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Great stuff!! Thanks a lot! I did some testing, and everything seems to work.

I have one feature that I'm missing. I'm aware this is not the core idea of this module, but I wanted to mention it anyway. Ok, so here it is:

If I have a selector for columns/rows that goes like parent=1283|1284, it works as expected by listing the children of both parents. The output could be like this:

S
M
L
Cotton
Nylon

However, it would be cool to have an option (checkbox) that creates all possible combinations of the selected children, like this:

S Cotton
M Cotton
L Cotton
S Nylon
M Nylon
L Nylon

In my case, I need this because I have multiple currencies for the rows.

As mentioned, I don't know if this too much out of scope and maybe needs an additional module.

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@Charger,

I see no easy way of doing that (3-way relationship) using this particular module. I'll see if I can do a bespoke one for your needs.

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Update: version 0.0.2

Added ability to reuse a single matrix field across pages/templates to build unique matrix tables on a page by page basis. This is achieved by specifying the name of a Multiplepages select field in the Fieldtype settings (Details Tab). It allows you to select row and column parent pages from within the page containing the matrix itself. The child pages of these parents are used to build the matrix. This setting overrides the Row and Column selector settings of the fieldtype.

Example usage:

  1. Create a Multiplepages field and call it, for example, 'product_select'. Set it up as you wish (e.g. custom PHP, selectors, etc for selectable pages). You may wish to use ASM select to make things prettier/easier below.
  2. Add it to the same template(s) where you will be using a matrix field.
  3. In your matrix field's Details Tab, specify the name of the page field (i.e. 'product_select') under the 'Matrix Row and Column Parent Pages' setting.
  4. Edit the page where you will be building a matrix table.
  5. Select 2 pages in your 'product_select' whose child pages will be used to create your matrix rows and columns. The order is important! The first selected page will be assumed to be the row pages parent and the second one the column pages parent. Any additional pages here will be ignored.
  6. Save your page and your matrix table will be built using the children of the selected parent pages.
  7. Note: The usual error checking will be done and 'thrown' (e.g. if parent pages do not have children, if your specified page field is not a page field/does not return a PageArray, etc.
  8. Note 2: You can swap/change the row/column pages in your page field (product_select) HOWEVER, all previously saved values will be deleted(!) on save and your matrix table rebuilt to reflect the new specified row/column structure.

Todo/think about

  • Copy values from Excel and directly paste this in a similarly structured matrix table
  • Export matrix table?
  • 1-click clear all values entered in a matrix table
  • Etc?

Download:

https://github.com/kongondo/FieldtypeMatrix

Screens

Named Page Field to select rows and columns parent pages

post-894-0-51198400-1418959469_thumb.png

Row and Column parent pages selection in a specified Page Field

post-894-0-04615700-1418985321_thumb.png

Reusing a single matrix field on a different page(s)

post-894-0-38870300-1418985322_thumb.png

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Great stuff!! Thanks a lot! I did some testing, and everything seems to work.

I have one feature that I'm missing. I'm aware this is not the core idea of this module, but I wanted to mention it anyway. Ok, so here it is:

If I have a selector for columns/rows that goes like parent=1283|1284, it works as expected by listing the children of both parents. The output could be like this:

S
M
L
Cotton
Nylon

However, it would be cool to have an option (checkbox) that creates all possible combinations of the selected children, like this:

S Cotton
M Cotton
L Cotton
S Nylon
M Nylon
L Nylon

In my case, I need this because I have multiple currencies for the rows.

As mentioned, I don't know if this too much out of scope and maybe needs an additional module.

@Charger,

I see no easy way of doing that (3-way relationship) using this particular module. I'll see if I can do a bespoke one for your needs.

Hmm, or maybe I should include this in the present module but with a max 3-way relationship? Otherwise it get messy if more. The 3rd relationship (materials in your case) would only kick in if user configures it in the Fieldtype settings as you suggested. What do you guys think?

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Looks great kongondo!! Very impressed.

How are the intersection values being stored? (Sorry, I've not dug around in the code.)

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...How are the intersection values being stored? (Sorry, I've not dug around in the code.)

That turned out (later) to be the easy bit :-). They are stored similar to Page Fields...(see second screenshot below)

Matrix array (see post below - we use this only for grabbing db values to later manipulate to build matrix cells/intersections. We use a different array for saving)

post-894-0-11754400-1418998901_thumb.png

Matrix db table (see update below [version 0.0.3] about avoiding saving records with empty values)

post-894-0-11824800-1418998904_thumb.png

Edited by kongondo
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@kongondo, is there any need to store the empty results?

Just wondered as once you get into the world of combinatorials things quickly get memory hungry big; and PHP associative arrays aren't exactly the world's most efficient storage format. Any idea how this fieldtype works out memory wise? 

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@Steve,

Good catch about empty values! Don't know how I mised that! I have corrected it in Version 0.0.3 (post here soon), thanks!

Memory issue: That was my next question. I would like to do/see some real world tests....+ there's also PHP post limits...Would appreciate if anybody could help test :-), thanks.

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i do tests with matrixField and seems to be working fine, (i have edit a little the inputfieldMatrix.module to retrieve matrix_columns and matrix_rows from a pagefield inside the same page) i'm still testing it, for any issues i will post here...

Thaaaaaaanks kongondo :)

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Update: version 0.0.3
 
Small but important update to correct oversight whereby records with empty values were being saved to the database, thx @netcarver.

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i do tests with matrixField and seems to be [/size]working fine, (i have edit a little the inputfieldMatrix.module to retrieve matrix_columns and matrix_rows from a pagefield inside the same page) i'm still testing it, for any issues i will post here...

How is that different from version 0.0.2 I posted earlier? :-)

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no different but i have to tested that way from version 0.0.1 :P

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hmm is it possible in settings to search for matrix_row or matrix_column  where $field = $page->field;

  

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Partial reply...

Looking at this some more I don't think this will be a major concern for most small combinations that people were suggesting (like {S, M, L, XL} crossed with {Red, Green, Blue}) but I am interested in how this might scale if people start specifying a set of pages for the x-axis with a larger number of members - say 30 options and a set of pages for the y-axis with another 20 options. Or perhaps if a user mistypes a selector and end up with 1000s of pages in one of the axis - would there be issues? (I'm kinda asking as I'm hitting an issue with a module of my own that needs a safe fallback position if something goes wrong.)

When I've looked at memory usage in the past, I've tended to use the memory_get_usage() function to track this kind of thing.

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hmm is it possible in settings to search for matrix_row or matrix_column  where $field = $page->field;  

Yes. They are subfields of whatever your field is. The subfields are the names of the columns in the Fieldtype's db table, i.e. matrix_row, matrix_column and matrix_value.

The selector format would be: field.subfield=value

E.g., if your your matrix field was called 'product', you would search for: . product.matrix_row, product.matrix_column and product.matrix_value.

I'm in a hurry atm, see examples here:

http://processwire.com/api/selectors/#subfield

https://processwire.com/talk/topic/5040-events-fieldtype-inputfield-how-to-make-a-table-fieldtypeinputfield/

https://processwire.com/talk/topic/5040-events-fieldtype-inputfield-how-to-make-a-table-fieldtypeinputfield/

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@kongondo, this looks great, thanks for making it available!

Will take a closer look soon, but just a (very) minor note at this point: I can't help wondering why the subfields are prefixed with matrix_ -- doesn't honestly matter that much, but I fail to see much value in that either, just slight increase in verbosity compared to non-prefixed alternatives  :)

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kongondo, about the way that pagefield shows columns and rows,   i have changed inputfield Matrix.module selector and i have two pagefields one for columns and one for rows, so every time i add a page to pagefield the matrixfield shows the specific page.title. 

the problem is that if matrix_value has a value and delete the pageField with the specific matrix column the cell is not deleted until i clear the value from the specific cell and save the page. 

matrixField.jpg

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....Will take a closer look soon, but just a (very) minor note at this point: I can't help wondering why the subfields are prefixed with matrix_ -- doesn't honestly matter that much, but I fail to see much value in that either, just slight increase in verbosity compared to non-prefixed alternatives  :)

Thanks @teppo. Yeah, I battled with this one; I am not a fan of such prefixes myself :-). I was trying to avoid collision with MySQL reserved words - row(?), value and column. Funny though that in my tests selectors still work when I drop the 'matrix' prefix...hmm. 

Guys..suggestions for naming the row/column/value  COLUMNS? Maybe:

mrow - mcolumn (or mcol)  - mvalue

OR maybe...

use the PW data COLUMN for 'values' (i.e. intersection/combination cell/value of row vs column), i.e.

$page->product.mrow//rows
$page->products.mcol//columns
$page->products.data//their data/values

Any thoughts? Thanks.

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@kongondo: had to check, and apparently column is a reserved word, row and value should be fine. Either way, prefixed values make sense after all, no point in having only one prefixed. Also, I kind of prefer matrix_* over m*, and matrix_value over data, so wouldn't chance anything to be honest :)

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kongondo, about the way that pagefield shows columns and rows,   i have changed inputfield Matrix.module selector and i have two pagefields one for columns and one for rows, so every time i add a page to pagefield the matrixfield shows the specific page.title. 

the problem is that if matrix_value has a value and delete the pageField with the specific matrix column the cell is not deleted until i clear the value from the specific cell and save the page. 

@sakkoulas,

Does this mean that all the rows and columns that make up your matrix table will have have their corresponding pages displayed in your page fields? It's an interesting idea but would probably not work well (visually) if you have a large table? The list of pages in your page fields could get very long :-)

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      Download the module Place the module files in /site/modules/PageImageManipulator/ In your admin, click Modules > Check for new modules Click "install" for PageImageManipulator Done! There are no configuration settings needed, just install and use it. Download    (version 0.2.0)
      get it from the Modules Directory History of origins

      http://processwire.com/talk/topic/3278-core-imagemanipulation/


      ----------------------------------------------------------------------------------------------------------


      Page Image Manipulator - Methods

      * pimLoad  or  pim2Load, depends on the version you use!

      pimLoad($prefix, $param2=optional, $param3=optional)
      param 1: $prefix - (string) = mandatory! param 2: mixed, $forceRecreation or $options param 3: mixed, $forceRecreation or $options return: pim - (class handle) $options - (array) default is empty, see the next method for a list of valid options! $forceRecreation - (bool) default is false It check if the desired image variation exists, if not or if forceRecreation is set to true, it prepares all settings to get ready for image manipulation
      -------------------------------------------------------------------

      * setOptions

      setOptions(array $options)
      param: $options - (array) default is empty return: pim - (class handle) Takes an array with any number valid options / properties and set them by replacing the class-defaults and / or the global config defaults optionally set in the site/config.php under imageSizerOptions or imageManipulatorOptions.

      valid options are:
      quality = 1 - 100 (integer) upscaling = true | false (boolean) cropping = true | false (boolean) autoRotation =true | false (boolean) sharpening = 'none' | 'soft' | 'medium' | 'strong' (string) bgcolor = (array) css rgb or css rgba, first three values are integer 0-255 and optional 4 value is float 0-1, - default is array(255,255,255,0) thumbnailColorizeCustom = (array) rgb with values for colorize, integer -255 - 255 (this can be used to set a custom color when working together with Thumbnails-Module)
        outputFormat = 'gif' | 'jpg' | 'png' (Attention: outputFormat cannot be specified as global option in $config->imageManipulatorOptions!) set {singleOption} ($value)
      For every valid option there is also a single method that you can call, like setQuality(90), setUpscaling(false), etc.
      -------------------------------------------------------------------

      * pimSave

      pimSave()
      return: PageImage-Object If a new image is hold in memory, it saves the current content into a diskfile, according to the settings of filename, imagetype, targetFilename and outputFormat. Returns a PageImage-Object!
      -------------------------------------------------------------------

      * release

      release()
      return: void (nothing) if you, for what ever reason, first load image into memory but than do not save it, you should call release() to do the dishes! 😉 If you use pimSave() to leave the ImageManipulator, release() is called automatically.
      -------------------------------------------------------------------

      * getOptions

      getOptions()
      return: associative array with all final option values example:
      ["autoRotation"] bool(true) ["upscaling"] bool(false) ["cropping"] bool(true) ["quality"] int(90) ["sharpening"] string(6) "medium" ["targetFilename"] string(96) "/htdocs/site/assets/files/1124/pim_prefix_filename.jpg" ["outputFormat"] string(3) "jpg" get {singleOption} ()
      For every valid option there is also a single method that you can call, like getQuality(), getUpscaling(), etc. See method setOptions for a list of valid options!
      -------------------------------------------------------------------

      * getImageInfo

      getImageInfo()
      return: associative array with useful informations of source imagefile example:
      ["type"] string(3) "jpg" ["imageType"] int(2) ["mimetype"] string(10) "image/jpeg" ["width"] int(500) ["height"] int(331) ["landscape"] bool(true) ["ratio"] float(1.5105740181269) ["bits"] int(8) ["channels"] int(3) ["colspace"] string(9) "DeviceRGB" -------------------------------------------------------------------

      * getPimVariations

      getPimVariations()
      return: array of Pageimages Collect all pimVariations of this Pageimage as a Pageimages array of Pageimage objects. All variations created by the core ImageSizer are not included in the collection.
      -------------------------------------------------------------------

      * removePimVariations

      removePimVariations()
      return: pim - (class handle) Removes all image variations that was created using the PIM, all variations that are created by the core ImageSizer are left untouched!
      -------------------------------------------------------------------
      * width

      width($dst_width, $sharpen_mode=null)
      param: $dst_width - (integer) param: $auto_sharpen - (boolean) default is true was deleted with version 0.0.8, - sorry for breaking compatibility param: $sharpen_mode - (string) possible: 'none' | 'soft' | 'medium' | 'strong', default is 'soft' return: pim - (class handle) Is a call to resize where you prioritize the width, like with pageimage. Additionally, after resizing, an automatic sharpening can be done with one of the three modes.
      -------------------------------------------------------------------

      * height

      height($dst_height, $sharpen_mode=null)
      param: $dst_height - (integer) param: $auto_sharpen - (boolean) default is true was deleted with version 0.0.8, - sorry for breaking compatibility param: $sharpen_mode - (string) possible: 'none' | 'soft' | 'medium' | 'strong', default is 'soft' return: pim - (class handle) Is a call to resize where you prioritize the height, like with pageimage. Additionally, after resizing, an automatic sharpening can be done with one of the three modes.
      -------------------------------------------------------------------

      * resize

      resize($dst_width=0, $dst_height=0, $sharpen_mode=null)
      param: $dst_width - (integer) default is 0 param: $dst_height - (integer) default is 0 param: $auto_sharpen - (boolean) default is true was deleted with version 0.0.8, - sorry for breaking compatibility param: $sharpen_mode - (string) possible: 'none' | 'soft' | 'medium' | 'strong', default is 'soft' return: pim - (class handle) Is a call to resize where you have to set width and / or height, like with pageimage size(). Additionally, after resizing, an automatic sharpening can be done with one of the three modes.
      -------------------------------------------------------------------

      * stepResize

      stepResize($dst_width=0, $dst_height=0)
      param: $dst_width - (integer) default is 0 param: $dst_height - (integer) default is 0 return: pim - (class handle) this performs a resizing but with multiple little steps, each step followed by a soft sharpening. That way you can get better result of sharpened images.
      -------------------------------------------------------------------

      * sharpen

      sharpen($mode='soft')
      param: $mode - (string) possible values 'none' | 'soft'| 'medium'| 'strong' return: pim - (class handle) Applys sharpening to the current memory image. You can call it with one of the three predefined pattern, or you can pass an array with your own pattern.
      -------------------------------------------------------------------

      * unsharpMask

      unsharpMask($amount, $radius, $threshold)
      param: $amount - (integer) 0 - 500, default is 100 param: $radius - (float) 0.1 - 50, default is 0.5 param: $threshold - (integer) 0 - 255, default is 3 return: pim - (class handle) Applys sharpening to the current memory image like the equal named filter in photoshop.
      Credit for the used unsharp mask algorithm goes to Torstein Hønsi who has created the function back in 2003.
      -------------------------------------------------------------------

      * smooth

      smooth($level=127)
      param: $level - (integer) 1 - 255, default is 127 return: pim - (class handle) Smooth is the opposite of sharpen. You can define how strong it should be applied, 1 is low and 255 is strong.
      -------------------------------------------------------------------

      * blur

      blur()
      return: pim - (class handle) Blur is like smooth, but cannot called with a value. It seems to be similar like a result of smooth with a value greater than 200.
      -------------------------------------------------------------------

      * crop

      crop($pos_x, $pos_y, $width, $height)
      param: $pos_x - (integer) start position left param: $pos_y - (integer) start position top param: $width - (integer) horizontal length of desired image part param: $height - (integer) vertical length of desired image part return: pim - (class handle) This method cut out a part of the memory image.
      -------------------------------------------------------------------

      * canvas

      canvas($width, $height, $bgcolor, $position, $padding)
      param: $width = mixed, associative array with options or integer, - mandatory! param: $height = integer, - mandatory if $width is integer! param: $bgcolor = array with rgb or rgba, - default is array(255, 255, 255, 0) param: $position = one out of north, northwest, center, etc, - default is center param: $padding = integer as percent of canvas length, - default is 0 return: pim - (class handle) This method creates a canvas according to the given width and height and position the memory image onto it.
      You can pass an associative options array as the first and only param. With it you have to set width and height and optionally any other valid param. Or you have to set at least width and height as integers.
      Hint: If you want use transparency with rgba and your sourceImage isn't of type PNG, you have to define 'png' as outputFormat with your initially options array or, for example, like this: $image->pimLoad('prefix')->setOutputFormat('png')->canvas(300, 300, array(210,233,238,0.5), 'c', 5)->pimSave()
      -------------------------------------------------------------------

      * flip

      flip($vertical=false)
      param: $vertical - (boolean) default is false return: pim - (class handle) This flips the image horizontal by default. (mirroring)
      If the boolean param is set to true, it flips the image vertical instead.
      -------------------------------------------------------------------

      * rotate

      rotate($degree, $backgroundColor=127)
      param: $degree - (integer) valid is -360 0 360 param: $backgroundColor - (integer) valid is 0 - 255, default is 127 return: pim - (class handle) This rotates the image. Positive values for degree rotates clockwise, negative values counter clockwise. If you use other values than 90, 180, 270, the additional space gets filled with the defined background color.
      -------------------------------------------------------------------

      * brightness

      brightness($level)
      param: $level - (integer) -255 0 255 return: pim - (class handle) You can adjust brightness by defining a value between -255 and +255. Zero lets it unchanged, negative values results in darker images and positive values in lighter images.
      -------------------------------------------------------------------

      * contrast

      contrast($level)
      param: $level - (integer) -255 0 255 return: pim - (class handle) You can adjust contrast by defining a value between -255 and +255. Zero lets it unchanged, negative values results in lesser contrast and positive values in higher contrast.
      -------------------------------------------------------------------

      * grayscale

      grayscale()
      return: pim - (class handle) Turns an image into grayscale. Remove all colors.
      -------------------------------------------------------------------

      * sepia

      sepia()
      return: pim - (class handle) Turns the memory image into a colorized grayscale image with a predefined rgb-color that is known as "sepia".
      -------------------------------------------------------------------

      * colorize

      colorize($anyColor)
      param: $anyColor - (array) like css rgb or css rgba - but with values for rgb -255 - +255,  - value for alpha is float 0 - 1, 0 = transparent  1 = opaque return: pim - (class handle) Here you can adjust each of the RGB colors and optionally the alpha channel. Zero lets the channel unchanged whereas negative values results in lesser / darker parts of that channel and higher values in stronger saturisation of that channel.
      -------------------------------------------------------------------

      * negate

      negate()
      return: pim - (class handle) Turns an image into a "negative".
      -------------------------------------------------------------------

      * pixelate

      pixelate($blockSize=3)
      param: $blockSize - (integer) 1 - ??, default is 3 return: pim - (class handle) This apply the well known PixelLook to the memory image. It is stronger with higher values for blockSize.
      -------------------------------------------------------------------

      * emboss

      emboss()
      return: pim - (class handle) This apply the emboss effect to the memory image.
      -------------------------------------------------------------------

      * edgedetect

      edgedetect()
      return: pim - (class handle) This apply the edge-detect effect to the memory image.
      -------------------------------------------------------------------

      * getMemoryImage

      getMemoryImage()
      return: memoryimage - (GD-Resource) If you want apply something that isn't available with that class, you simply can check out the current memory image and apply your image - voodoo - stuff
      -------------------------------------------------------------------

      * setMemoryImage

      setMemoryImage($memoryImage)
      param: $memoryImage - (GD-Resource) return: pim - (class handle) If you are ready with your own image stuff, you can check in the memory image for further use with the class.
      -------------------------------------------------------------------

      * watermarkLogo

      watermarkLogo($pngAlphaImage, $position='center', $padding=2)
      param: $pngAlphaImage - mixed [systemfilepath or PageImageObject] to/from a PNG with transparency param: $position - (string) is one out of: N, E, S, W, C, NE, SE, SW, NW,
      - or: north, east, south, west, center, northeast, southeast, southwest, northwest
      default is 'center' param: $padding - (integer) 0 - 25, default is 5, padding to the borders in percent of the images length! return: pim - (class handle) You can pass a transparent image with its filename or as a PageImage to the method. If the watermark is bigger than the destination-image, it gets shrinked to fit into the targetimage. If it is a small watermark image you can define the position of it:
      NW - N - NE | | | W - C - E | | | SW - S - SE  
      The easiest and best way I have discovered to apply a big transparency watermark to an image is as follows:
      create a square transparent png image of e.g. 2000 x 2000 px, place your mark into the center with enough (percent) of space to the borders. You can see an example here! The $pngAlphaImage get centered and shrinked to fit into the memory image. No hassle with what width and / or height should I use?, how many space for the borders?, etc.
      -------------------------------------------------------------------

      * watermarkLogoTiled

      watermarkLogoTiled($pngAlphaImage)
      param: $pngAlphaImage - mixed [systemfilepath or PageImageObject] to/from a PNG with transparency return: pim - (class handle) Here you have to pass a tile png with transparency (e.g. something between 150-300 px?) to your bigger images. It got repeated all over the memory image starting at the top left corner.
      -------------------------------------------------------------------

      * watermarkText

      watermarkText($text, $size=10, $position='center', $padding=2, $opacity=50, $trueTypeFont=null)
      param: $text - (string) the text that you want to display on the image param: $size - (integer) 1 - 100, unit = points, good value seems to be around 10 to 15 param: $position - (string) is one out of: N, E, S, W, C, NE, SE, SW, NW,
      - or: north, east, south, west, center, northeast, southeast, southwest, northwest
      default is 'center' param: $padding - (integer) 0 - 25, default is 2, padding to the borders in percent of the images length! param: $opacity- (integer) 1 - 100, default is 50 param: $trueTypeFont - (string) systemfilepath to a TrueTypeFont, default is freesansbold.ttf (is GPL & comes with the module) return: pim - (class handle) Here you can display (dynamic) text with transparency over the memory image. You have to define your text, and optionally size, position, padding, opacity for it. And if you don't like the default font, freesansbold, you have to point to a TrueTypeFont-File of your choice.
      Please have a look to example output: http://processwire.com/talk/topic/4264-release-page-image-manipulator/page-2#entry41989
      -------------------------------------------------------------------





      PageImage Manipulator - Example Output


    • By d'Hinnisdaël
      Format Datetime fields as Carbon instances.
      You can find the latest release and the complete readme on Github.
      Installation
      composer require daun/datetime-carbon-format Usage
      All Datetime fields will now be formatted as Carbon instances instead of strings. Some examples:
      // $page->date is a Datetime field // Output format: j/n/Y echo $page->date; // 20/10/2020 echo $page->date->add('7 days'); // 27/10/2020 echo $page->date->format('l, F j'); // Monday, October 20 echo $page->date->year; // 2020 echo $page->date->diffForHumans(); // 28 minutes ago Frontend only
      The ProcessWire admin seems to expect datetime fields to be strings. This module will only return Carbon instances on frontend page views.
      Date output format
      When casting a Carbon instance to a string (usually when outputting the field in a template), the field's date output format will be respected.
      Links
      GitHub • Readme • Carbon docs
       
       
      PS. I remember reading about a Carbon module in a recent newsletter, but couldn't find it anywhere. Was that you, @bernhard?
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