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  1. Skip Inputfield Label is a tiny module that makes the skipLabel Inputfield option configurable in the admin interface. I'm not entirely sure why this option is not available by default, but I've found it useful for some use cases, as it can reduce the clutter in admin. That being said, it is also potentially problematic, especially when using options that completely remove the label — this is usually a horrible idea due to the accessibility issue it creates. This module is not widely tested yet, so please be careful. Technically it should work with FormBuilder as well, though again that is not something I have tested much. Modules directory: https://processwire.com/modules/skip-inputfield-label/ GitHub: https://github.com/teppokoivula/SkipInputfieldLabel Composer: composer require teppokoivula/skip-inputfield-label
    3 points
  2. This week the ProcessWire core dev branch version has been bumped to 3.0.230. Currently we are about 10 commits ahead of the main/master branch. Relative to that branch, we have 5 issue fixes, 2 pull requests, major improvements to the wireIconMarkup() function and some minor improvements to the ProcessLogger module. We may merge these updates (among others) to the main/master branch as soon as next week. This week I also developed a new security module called LoginTimer that helps to prevent timing attacks in ProcessWire. Admittedly, I started this more for fun than anything, as I don't think timing attacks are a common problem in ProcessWire. But the more I got into it, the more I became aware of the potential dangers of timing attacks (particularly outside of the ProcessWire world). In any case, I now view it as an important security consideration and definitely thought we should have a module for it. Maybe someday we'll have it in the core too. The module is now available in the modules directory and on GitHub, and I wrote up a blog post to accompany the module and that is located here: https://processwire.com/blog/posts/timing-attacks-and-how-to-prevent-them/
    2 points
  3. Generate image placeholders for smoother lazyloading. Currently supports ThumbHash, BlurHash, and average color placeholders. I've been using the wonderful ImageBlurhash module for this in the past, but unfortunately it's no longer in active development. This new module adds ThumbHash and Average Color placeholder algorithms, improves performance by caching generated placeholders, fixes an issue when replacing images, and allows regenerating and clearing placeholders via the admin interface. Try it out using the installation instructions below or check out the GitHub repo for details. Why use image placeholders? Low-Quality Image Placeholders (LQIP) are used to improve the perceived performance of sites by displaying a small, low-quality version of an image while the high-quality version is being loaded. The LQIP technique is often used in combination with progressive lazyloading. How it works This module will automatically generate a small blurry image placeholder for each image that is uploaded to fields configured to use them. In your frontend templates, you can access the image placeholder as a data URI string to display while the high-quality image is loading. See below for markup examples. Placeholder types The module supports generating various types of image placeholders. The recommended type is ThumbHash which encodes most detail and supports transparent images. ThumbHash is a newer image placeholder algorithm with improved color rendering and support for transparency. BlurHash is the original placeholder algorithm, developed at Wolt. It currently has no support for alpha channels and will render transparency in black. Average color calculates the average color of the image. Installation Install the module using composer from the root of your ProcessWire installation. composer require daun/processwire-image-placeholders Open the admin panel of your site and navigate to Modules → Site → ImagePlaceholders to finish installation. Configuration You'll need to configure your image fields to generate image placeholders. Setup → Fields → [images] → Details → Image placeholders There, you can choose the type of placeholder to generate. If you're installing the module on an existing site, you can also choose to batch-generate placeholders for any existing images. Usage Accessing an image's lqip property will return a data URI string of its placeholder. $page->image->lqip; // data:image/png;base64,R0lGODlhEAAQAMQAA Accessing it as a method allows setting a custom width and/or height of the placeholder. $page->image->lqip(300, 200); // 300x200px Markup Using a lazyloading library like lazysizes or vanilla-lazyload, you can show a placeholder image by using its data URI as src of the image. <!-- Using the placeholder as src while lazyloading the image --> <img src="<?= $page->image->lqip ?>" data-src="<?= $page->image->url ?>" data-lazyload /> Another technique is rendering the placeholder and the original image as separate images on top of each other. This allows smoother animations between the blurry unloaded and the final loaded state. <!-- Display placeholder and image on top of each other --> <div class="ratio-box"> <img src="<?= $page->image->lqip ?>" aria-hidden="true"> <img data-src="<?= $page->image->url ?>" data-lazyload> </div>
    1 point
  4. Hello @dynweb Thank you for reporting this issue and offering a solution!! You are right, there was a logical mistake inside the InputfieldPassword class. I have corrected this wrong behavior and updated the module to 2.1.49. You can read the complete changelog here: changelog.md Be aware, that the checkbox will be appended by default and you have to manually disable it by using the following method including false as parameter showPasswordToggle(false); Best regards
    1 point
  5. @aagd I pushed an update, this update has fix for attributes to string fix and added an example component. This component contains example on readme file with 2 different output solution. Method 1 is commented https://github.com/trk/Component/blob/8b973cca955a29fd60c933da9ff9a6d35f5e518b/components/example/templates/template-default.php#L11 Method 2 classic way https://github.com/trk/Component/blob/8b973cca955a29fd60c933da9ff9a6d35f5e518b/components/example/templates/template-default.php#L24
    1 point
  6. Hi, I'm using your module for the first time, looks really promising ? It seems that password fields *always* show a password toggle, even if the showPasswordToggle() method is not called in user code. In InputPassword.php, line 105, it unconditionally appends the checkbox: $this->append($this->showPasswordToggle()->___render()); My solution was the following, but not sure if that won't break other things: // InputPassword.php // Line 26 // protected InputCheckbox $showPasswordToggle; // The password toggle checkbox object protected bool $showPasswordToggle = false; // Line 85 // $this->showPasswordToggle = $toggle; $this->showPasswordToggle = true; // Line 105 // $this->append($this->showPasswordToggle()->___render()); if($this->showPasswordToggle) { $this->append($this->showPasswordToggle()->___render()); }
    1 point
  7. Recent versions of RockMigrations also show you all the settings and their possible values once the module is installed just by hovering over the setting. I'd recommend using this technique rather than copying all the code. Most of the time that is easier and you don't end up with messy migration code...
    1 point
  8. RockMigrations makes total sense for all the projects I'm using it on ?
    1 point
  9. RockMigrations has a lot more to offer. It has a proven workflow for professional and automated deployments for example and it comes with MagicPages that have a lot of great helpers if you are using custom page classes. It has helpers to make working with the page editor easier (eg the wrapFields() method) and it has helpers to quickly see all the properties you need via mouse hover. Even if I died tomorrow you could just continue using RockMigrations for the next 10 years. If anything is not supported, just go with the regular API. If anything breaks with future updates, just remove RockMigrations from the project and that's it. From that time on you could rely on core api and just remove old code (if that's even necessary). But there's nothing bad in using the core api if you prefer. It's just too cumbersome for me.
    1 point
  10. Version 2.1.47 is out!! Now FrontendForms supports Ajax form submission! Ajax form submission prevents a page reload after the form has been submitted. This could be useful in scenarios, where you do not want a reload (fe if your form is inside a modal box or inside a tab) after the form has been submitted. You can disable/enable Ajax submission by checking a checkbox inside the module configuration, or you can overwrite the global value by using the setSubmitWithAjax() method on per form base. If you are enabling this feature, a progress bar will be displayed after you have pressed the submit button to inform the user, that the form will be validated now. Otherwise, the user will not see any action until the validated form will be loaded back into the page. If you do not want to show the progress bar, you can disable it inside the module configuration too. With the showProgressbar() method, you can overwrite this global setting on per form base. In the case, you want to redirect the visitor to another page, after the form has been submitted successfully, you cannot do this via a PHP session redirect, because the form has been submitted via Ajax. In this case a JavaScript redirect has to be done. To force a JS redirect after the submission, you need to use the setRedirectUrlAfterAjax() method. Put the new URL inside the parenthesis, and the user will be redirected to this URL after the form has been validated successful. You will find a more detailed information about these 3 new methods here: https://github.com/juergenweb/FrontendForms/blob/main/README.md#setsubmitwithajax---use-ajax-for-form-submission Screenshot of the new Ajax configuration settings: As always, please test your forms if you are changing to Ajax support and report any bugs directly on Github. A lot of changes have been done, so keep an eye on unwanted side effects. I have tested it with my other module FrontendContact too and it works without problems if you are using Ajax support. Best regards!
    1 point
  11. Just an FYI for everyone who may upgrade to the latest PW dev version today. If you make use of AOS's excellent "Add button to check/uncheck all checkboxes" feature, it will break the top level menu dropdowns in the PW admin (and maybe other JS). The fix is to replace: ("[data-no-checkall-checkboxes="1"]") with: ([data-no-checkall-checkboxes="1"]) in: /site/modules/AdminOnSteroids/scripts/aos.min.js
    1 point
  12. I think this would gain more visibility in the requests repository issues, I've had this issue too! I recently had a request and it got action pretty quickly. https://github.com/processwire/processwire-requests/issues
    1 point
  13. Bumping this thread. It's an issue that has been brought up by clients, especially those with larger site structures. Selecting a page in the PageField set to "Tree View" is no problem. However, on edits its hard to identify if the correct page has been selected or which page has been selected altogether. A suggest improvement would be: Field Option: Tree Open/Closed This would improve UX of the field significantly.
    1 point
  14. Hi @Sava, I'm not sure I get your question... do you want to know how to get a URL of the QR code to be able to download it ? In the unformatted output the QR code is already in the form of an <img> (or <svg>), but I went ahead and added a "raw" key in the unformatted output. You can download the latest version and try to do something like... $qrcode = $page->getUnformatted("qrcode_field"); foreach($qrcode as $qr) { $filename = $sanitizer->snakeCase($qr["label"]); $label = "Download QR code for \"{$qr["label"]}\""; echo "<a href=\"{$qr["raw"]}\" target=\"_blank\" download=\"$filename\">$label</a>"; } Hope this helps!
    1 point
  15. After doing a quick check I assume that was it (multilang issue). Here's a new version that will only output the QR Code in the user's language if it's a guest. Please note you'll still have the two QR Codes if you're logged in. I will think of something to help with the output, something like a ->get() to output a specific source and/or language.
    1 point
  16. Probably my method is in the dinosaur category, but it still works without spending too much time on migrating a database: If I do not mix up production with local then it is fool proof. It takes less than 15 secs from start to finish to clone a small database including all the keystrokes I have to perform at the beginning. Sure, it is the other way round regarding migrating, but for a one man show it is not a big deal. When modifying settings in production, I sometimes have to do the cloning more than once but since the whole process is so fast, for me it is a non-issue. "I am still waiting" for an official automated migrating solution included in the ProcessWire core :P
    1 point
  17. This basic tutorial is primarily aimed at those new to PW. It could also serve as a reference to others more seasoned PW users. The question about how to categorise content comes up in the forums now and again. Hopefully with this post we’ll have a reference to guide us right here in the tutorials board. Many times we need to organise our site content into various categories in order to make better sense of the data or to logically and easily access it. So, how do you organise your data when you need to use categories? Here are a few tips gathered from the PW forums on how to go about this. Using these tips will, hopefully, help you avoid repeating yourself in your code and site content and keep things simple. See the links at the end of this post to some useful discussion around the topic of categorisation. Before making decisions about how to organise your site, you need to consider at least three questions: What items on my site are the main items of interest? These could be people or things (cars, plants, etc.). In most cases, these are the most important content on which all the other stuff point to. Where do items need to be grouped into categories? This is about where items need to “live”. It is about the attributes of the items of interest (e.g. responsibilities, job types, colour, etc.). Attributes can have sub-attributes (e.g. a category job type = driver could be further sub-classified as job type role = train driver). Can they live in more than one place? - This is about having multiple attributes. There could be other issues such as the type of content your main items of interest are but that’s for another post. We’ll keep these examples simple. The main principles explained below still apply. There are at least three possible ways in which you can organise your content depending on your answers to the above three questions. These are: Single category Simple multiple categories Complex multiple categories These are illustrated below. Note that this is what I call them; these are not PW terms. 1. Single Category Suppose you need to do a site for a company that’s made up of several Departments each with employees performing unique functions. These could include “Finance”; “Media Communications”; “Administration”; “Technicians”; “Human Resources”; “Logistics”. We ask ourselves the following questions based on our 3 questions above: 1. Q: What items on my site are the main items of interest? A: Employees. 2. Q: What attributes of our items of interests are we interested in? A: Departments. (Single main category) 3. Do the Departments have sub-categories? A: Yes. (Multiple sub-categories) 4.Can Employees belong to multiple sub-categories? A: No. (Single sub-category) We conclude that what we need is a Single Category model. Why? This is because, in Single Categories model, items of interest can only belong to 1 and only 1 main/parent category and within that only 1 sub-category Employees in this company can only belong to one and only one department. Finance guys do their finance and Logistics guys do their stuff. Letting Techies do press conferences is probably not going to work; that we leave to the Media guys . Assuming the company has the following employees - James, John, Mary, Ahmed, Peter, Jason, Barbara etc., arranging our site content to fit this model could look like the following: Items of interest = Employees Categories = Departments Adopting out strategy to keep it simple and logical, let us write down, hierarchically, our employee names against their departments to mimic the PW tree like this: James Finance John Finance Mary Technician Ahmed Logistics Barbara Media Etc. We notice, of course, that departments start repeating. It doesn't look like we are doing this very logically. If we think about this carefully, we will conclude that, naturally, the thing (attribute in this case) that keeps repeating should be the main criteria for our categorisation. This may seem obvious, but it is worth pointing out. Also, remember, that as per the responses to our questions, the categories (Finance, Logistics, etc.) do not have sub-categories. In this aspect, we are OK. Using this principle about repeating attributes, we find that Departments, rather than Employees, need to be the main categories. Hence, we categorise our PW site content by doing the following. Create a template for each Department. Hence, we have a template called Finance, Logistics, etc. Add the fields needed to those templates. This could be a text field for holding Employee phone numbers, email field for email, title field for their names, etc. Create top level pages for each Department and assign to them their respective templates. Give them appropriate titles, e.g., Finance, Media, etc. Create a page for each employee as a child page of the Department which they belong to. Give them appropriate titles, e.g. James, John, etc. We end up with a tree that looks like this: 1. Finance (ex. main category) a. James (ex. item of interest) b. John c. Shah d. Anne 2. Logistics (ex. main category) a. Ahmed b. Matthew c. Robert d. Cynthia 3. Media a. Barbara b. Jason c. Danita 4. Human Resources a. Michael b. Pedro c. Sally 5. Technician a. Mary b. Oswald c. Dmitri d. Osiris Since an employee can only belong to one Department, our work here is done. We can then use PW variables, e.g. $page->find, $pages->find with the appropriate selectors to find employees within a Department. This is a very basic example, of course, but you get the idea. You have the choice of creating one template file for each category template as well. I prefer the method of using one main template file (see this thread). You could do that and have all Departments use different templates but a single template file. In the template file you can include code to pull in, for example, the file “technician.inc” to display the relevant content when pages using the template “Technician” are viewed. Example code to access and show content in Single Categories model $hr = $pages->find("template=human-resources, limit 50"); foreach ($hr as $h) { echo "{$h->title}"; } But sites do not always lend themselves to this model. Many times, items of interest will need to belong to multiple categories. 2. Simple Multiple Categories Let’s say you were building a site for cars - red cars, blue cars, 2-seaters, 5-seaters, etc. Again, we ask ourselves our questions based on our initial three questions: 1. Q: What items on my site are the main items of interest? A: Cars. 2. Q: What attributes of our items of interests are we interested in? A: Colour, Number of seats, Models, Year of manufacture, Types. (Multiple categories) 3. Do these multiple attributes have sub-attributes? A: Yes. e.g., the attribute Colour has several sub-categories - red, white, green, etc. (Multiple sub-categories) 4. Can Cars have multiple sub-attributes? A: No. e.g., a yellow car cannot be a green car. (Single sub-categories) We therefore conclude that what we need is a Simple Multiple Category model. Why? This is because, in Simple Multiple Categories, items of interest can belong to multiple parent categories. However, within those parent categories, they can only belong to one sub-category. Assuming we have the following cars, manufactured between 2005 and 2008, as items of interest: Mercedes, Volvo, Ford, Subaru, Toyota, Nissan, Peugeot, Renault, Mazda, arranging our site content to fit this model could look like the following: Items of interest = Cars Categories = Model, Year, Colour, Number of seats, Type Sub Categories = Model [Prius, etc.]; Year [2005, 2006, 2007, 2008]; Colour [Red, Silver, Black, White, Green]; Number of seats [2, 5, 7]; Types [sports, SUV, MPV]. Adopting out strategy to keep it simple and logical, if we wrote down our cars names against their attributes like this: Mercedes Model-Name: Year: 2005 Colour: Silver Seats: 2-seater Type: Sports Volvo Model-Name: Year: 2007 Colour: Green Seats: 5-seater Type: SUV Ford Model-Name: Year: 2007 Colour: Red Seats: 7-seater Type: MPV Etc We notice, again, that car attributes start repeating. In order not to repeat ourselves, we want to avoid the situation where our child pages “names” keep repeating. For instance, in the above example tree, we want to avoid repeating year, colour, etc. within the tree. Of course in the frontend our output needs to look like the above where we can list our cars and their respective attributes. We just don’t need a tree that looks like this in the backend. Since we have multiple categories and sub-categories, we need to rethink our strategy for categorising our content as illustrated below. The strategy we used in the first category model will not work well here. Hence, these repeating attributes (year, colour, etc.) need to be the main criteria for our categorisation. We need to end up with a tree that looks like this: 1. Cars a. Mercedes (ex. item of interest) b. Volvo c. Ford d. Subaru e. Toyota f. Range Rover g. Peugeot h. Renault i. Mazda 2. Model (ex. main category) a. Fiesta (ex. sub-category) b. Miata c. Impreza d. Matrix e. Prius f. E-Class g. XC-90 h. Scenic i. L322 j. 505 3. Year a. 2005 b. 2006 c. 2007 (ex. sub-category) d. 2008 4. Colour a. Red b. Silver c. Black d. White e. Green 5. Number of Seats a. 2 b. 5 c. 7 6. Type a. MPV b. Sports c. SUV d. Other At the top of the tree, we have our main items of interest, Cars. They do not have to come first on top of the tree like that but it just makes sense to have them like this. Next, we have the Cars’ categories (attributes). The main categories are parent pages. Each main category has children which act as its sub-categories (cars’ sub-attributes). For instance, the main category colour has sub-categories “red”, “green”, etc. Grouping them under their main category like this makes better sense than having them dangling all over the tree as parent pages themselves. Now that we know what we want to achieve, the next question is how do we go about relating our categories and sub-categories to our main items of interest, i.e., cars? Fields come to mind. OK, yes, but what about the sub-categories (2006, red, 5-seater, etc.)? Surely, we can’t keep typing those in text fields! Of course not; this is PW. We like to simplify tasks as much as we can. What we need is a special type of field. Page Reference Fields or Page Fieldtypes add the ability to reference other pages, either single or multiple pages, within a page. For instance, we could have a Page Reference Field in the template that our Car pages use. Let’s call this “car-template”. When viewing Car pages, we would have the ability to select other pages on our site that we wish to reference, for instance, because they are related to the page we are viewing. In other cases, we could also wish to reference other pages that contain attributes/values of the page we are viewing. This is the situation with our Cars example above. Hence, the sub-categories/sub-attributes for our Cars will be pulled into our car pages using Page Reference Fields. There are two types of Page Reference Fields; single page and multiple pages. What each do is obvious from their names. Single Page Reference Fields will only reference one page at a time. Multiple Page Reference Fields will reference multiple pages. OK, let’s go back to the issue at hand. We need to categorise Cars by various attributes. Do we need to reference the main categories (Year, Type, etc.) in our Car pages? In fact, we don’t. What we need to reference are the sub-categories, i.e. 2005, red, SUV, etc. These will provide the actual attributes regarding the parent attribute of the Cars. We have said we do not wish to type these sub-categories/attributes all the time hence we use Page Reference Fields. Which type of Page Reference Field should we use? Remember that our Cars can have only one sub-category/sub-attribute. That’s our cue right there. In order to select one and only one sub-attribute per Car, we need to use the single Page Reference Field. Hence, we categorise our Cars PW site by doing the following (you may follow a different order of tasks if you wish). Create a template to be used by the Car pages. Give it a name such as car-template Create a page for each of your cars and make them use the car-template Create one template to be used by all the main attribute/categories and their children (the sub-categories). We do not need a template for each of the categories/sub-categories. I name my template “car-attributes” Of course you can name yours differently if you wish. Add the fields needed to this template. You don’t need anything other than a title field for each actually. Create top level pages for each main category and assign to them the template car-attributes. As before, give your pages meaningful titles. Do the same respectively for their child pages. E.g., you should have the following child pages under the parent “Year” - 2005, 2006, 2007 and 2008. Create the Page Reference Fields for each of your main categories/parent attributes. Using our example, you should end up with 5 Page Reference Fields (model, year, colour, seats and type). Each of these should be single Page Reference Fields. It’s a good idea, under the BASICS settings while editing the fields, to include some Description text to, include additional info about the field, e.g. instructions. In addition, you don’t want any page that doesn't belong to a particular attribute to be selectable using any of the Page Reference Fields. For instance, when referencing the year a car was manufactured, we want to be able to only select children of the page Year since that is where the year sub-categories are. We do not want to be able to select children of Colour (red, green, etc.) as the year a car was manufactured! How do we go about this? PW makes this very easy. Once you have created your Page Reference Fields, while still in the editing field mode, look under the settings INPUT. The fourth option down that page is “Selectable Pages”. Its first child option is “Parent of selectable page(s)”. Where it says “Select the parent of the pages that are selectable” click on change to change the parent. By now you know where I am going with this. For the Page Reference Field named Year, choose the page “Year” as the parent whose children will be selectable when using that Page Reference Field to select pages. Similarly, do this for the remaining 4 Page Reference Fields. Note that under this field settings INPUT you can change how you want your pages to be selectable. Be careful that you only select the types that match single Page Reference Fields, i.e. the ones WITHOUT *. For single Page Reference Fields, you have the choices:Select - a drop down select Radio buttons PageListSelect Now edit the car-template to add all 5 of your Car Page Reference Fields. We are now ready to roll. Go ahead and edit your Car pages. In each of them you will see your 5 Page Reference Fields. If you followed the instructions correctly, each of them should only have the relevant child pages/sub-attributes as selectable. Do your edits - select year when car was manufactured, its colour, type, number of seats, etc. and hit Save. By the way, note that Page Reference Fields give you access to all the fields and properties of the page being referenced! You have access to the referenced page’s title, name, path, children, template name, page reference fields, etc. This is really useful when creating complex sites. I call it going down the rabbit hole! These properties of the referenced page are available to you on request. It does mean that you will have to specifically echo out the property you want from that page. Page Reference Fields are echoed out like any other field. Example code to access and show content in Simple Multiple Categories model $cars = $pages->find("template=car-template, limit=10, colour=red, year=2006, seats=5"); foreach ($cars as $car) { echo $car->title; echo $car->year; echo $car->colour; } I have made the above verbose so you can easily follow what I'm trying to achieve. The above code will find 10 red 5-seater cars manufactured in 2006. Remember, colour, year and seats are the names of your custom Page Reference Fields that you created earlier. Some sites will have content that belong to multiple categories and multiple sub-categories. We address this below. 3. Complex Multiple Categories Suppose you are developing a site for a school. The school has teachers (duh!) some of whom teach more than one subject. Besides their classroom duties, some teachers are active in various clubs. On the administration side, some teachers are involved in various committees. You know the drill by now. Let’s deal with our basic questions. 1. Q: What items on my site are the main items of interest? A: Teachers. 2. Q: What attributes of our items of interest are we interested in? A: Subjects, Administration, Clubs (Multiple categories) 3. Do these multiple attributes have sub-attributes? A: Yes. e.g., the attribute Subjects has several sub-categories - History, Maths, Chemistry, Physics, Geography, English, etc. (Multiple sub-categories) 4. Can Teachers have multiple sub-attributes? A: Yes. e.g., a Teacher who teaches both maths and chemistry (Multiple sub-categories) Apart from the response to the final question, the other responses are identical to our previous model, i.e. the Simple Multiple Categories. We already know how to deal with multiple categories so we’ll skip some of the steps we followed in the previous example. Since our items of interest (Teachers) can belong to more than one sub-category, we conclude that what we need is a Complex Multiple Category model. In Complex Multiple Categories, items of interest can belong to multiple parent categories and multiple sub-categories both within and without main/parent categories. By now we should know what will be the main criteria for our categorisation. We need to end up with a tree that looks like this: 1. Teachers a. Mr Smith (ex. item of interest) b. Mrs Wesley c. Ms Rodriguez d. Mr Peres e. Mr Jane f. Mrs Potter g. Ms Graham h. Mrs Basket i. Dr Cooper 2. Subjects (ex. main category) a. History (ex. sub-category) b. Maths c. English d. Physics e. Chemistry f. Geography g. Religion h. Biology i. French j. Music 3. Clubs a. Basketball b. Debate c. Football d. Scouts e. Sailing f. Writing 4. Administration a. Discipline b. Counselling c. Exams board d. Public relations e. Education We are ready to build our site. Which type of Page Reference Field should we use? Remember that our Teachers can teach more than one subject and can be involved in various sub-category activities. That’s our cue right there. In order to select multiple attributes/categories, we of course go for the multiple Page Reference Field. Similar to the previous example, create necessary templates and fields for the site. For our multiple Page Reference Fields, remember to select the correct input field types. These should match multiple Page Reference Fields and are marked with *. For multiple Page Reference Fields, the available choices are: Select Multiple* AsmSelect* Checkboxes* PageListSelectMultiple* PageAutoComplete* Remember to add the multiple Page Reference Fields to the Teachers template. Go ahead and test different selectors, e.g. find Teachers that teach Maths and Chemistry and are involved in the Writing club. Whether you get results or not depends on whether there is actually that combination. An important point to remember is that your multiple Page Reference Fields will return an array of pages. You will need to traverse them using foreach (or similar). Example code Complex Multiple Categories model Find the subjects taught by the Teacher whose page we are currently viewing. You can use if statements to only show results if a result is found. In this case, of course we expect a result to be found; if a Teacher doesn't teach any subject, he/she has no business teaching! subjects is the name of one of your custom Multiple Page Reference Fields. echo "<ul>"; foreach ($page->subjects as $x) { echo "<li>{$x->title}</li>"; } echo "</ul>"; There will be situations where you will need to use both Single and Multiple Page Reference Fields (independently, of course). For instance, in our Teachers example, we might be interested in the Gender of the Teacher. That would require a Single Page Reference Field. Summary What we have learnt: Categorising our site content need not be a nightmare if we carefully think it through. Of course not all sites will fit neatly into the 3 models discussed. By providing answers to a few simple key questions, we will be able to quickly arrive at a decision on how to categorise our content. There are at least 3 models we can adopt to categorise our content - single category; simple multiple category; and complex multiple category. In the latter two models, we make full use of PW’s powerful Page Reference Fields to mimic a relational database enabling us to roll out complex sites fast and easy. Useful links: http://processwire.com/talk/topic/3553-handling-categories-on-a-product-catalogue/ http://processwire.com/videos/create-new-page-references/ http://processwire.com/videos/page-fieldtype/ http://processwire.com/talk/topic/1041-raydale-multimedia-a-case-study/ http://processwire.com/talk/topic/683-page-content-within-another-page/ http://processwire.com/talk/topic/2780-displaying-products-category-wise/ http://processwire.com/talk/topic/1916-another-categories-question/ http://processwire.com/talk/topic/2802-how-would-you-build-a-daily-newspaper/ http://processwire.com/talk/topic/2519-nested-categories/ http://processwire.com/talk/topic/71-categorizingtagging-content/ http://processwire.com/talk/topic/2309-best-way-to-organize-categories-in-this-case/ http://processwire.com/talk/topic/2200-related-pages/ http://processwire.com/talk/topic/64-how-do-you-call-data-from-a-page-or-pages-into-another-page/
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