There are a few half-solutions, but it depends on what you're really after.ĭo you need a collection of all Colours used by any Product in a given Category? Try using a scope method in your Colours model. If that's the case, the hasManyThrough relation won't be of help. However, it is executed for values that are present but have the value undefined. It is not invoked for keys that have been deleted. The forEach function executes the provided callback once for each key of the map, which exists. your example of Category::colours), and may not have an instance where the id has been defined, which will cause a different type of error.įrom your SQL, it looks like you have a) tables for category, product and colour, and b) relation/pivot tables product_color, product_category. The JavaScript map forEach () method executes the specified function once for each key/value pair in the Map object. These methods are (usually) called statically (e.g. You could do so by creating a function that multiplies every array item by two, and moving that function into a map () method. For instance, suppose you want to multiply every item in an array by two. The result of this function is then moved into its own array. The text was updated successfully, but these errors were encountered: All reactions Copy link Contributor dnkoutso commented Dec 24, 2020. I haven't had much luck with using QueryBuilder chains or results and with calls.įurthermore, be careful how/where you use "$this->*_id). The JavaScript map () method calls a specific function on each item in an array. Searching for inspections failed: undefined method map for nil:NilClass. colours) to return the result of a Relation method (e.g. I think the issue you're running into is that the 'with' method expects the referenced functions (e.g. The category -> colour relationship has to go through products, so I've got this function in my Category model: public function colours() Remove the entire default code in src/App. I'm building a navigation where the top level is categories, and underneath this you can select a colour to filter, for example, purple carpets. Create a new React project with this command: npx create-react-app myfictionstore - template typescript.
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