forms

问题 I need to prepopulate a form so that users can edit a blog they have previously created. I'm looking for the best-practices way of doing this in React. I am currently passing the value to a component through props, and then setting a state property to equal a props property, but I have read that this is an anti-pattern. I understand 'source of truth'. But what is a better way to do it? I would rather not use redux-form, for now. Below is my title component, and below that is how I call it

问题 I have just gotten into Django and read a bunch of books, now im building my first app. When I render my forms in my template im using... {{ form.as_ul }} And now I'm trying to apply some CSS to my form. It's proving difficult to get it look nice. I was wondering if there is a better way of rendering and styling forms? 回答1: Well, there are a couple of options that you can take advantage of like: form.as_p form.as_ul form.as_table Its up to you to decide what you would like. As for customizing

问题 I am disabling the inputs using the isFetching prop, but this is getting reduntant as I have to keep this in every input field. Is there a way to disable the entire form? Like a disable property in <form> tag or something? <form> <input type="text" disabled={this.props.isFetching} /> <input type="text" disabled={this.props.isFetching} /> </form> 回答1: I think this should solve your problem https://stackoverflow.com/a/17186342/3298693. You should insert your form inside an element <fieldset

问题 so I'm trying to make this Regex allow this the Dash symbol - For Example this Phone Number is not matching right now +212 659-123456 So I need someone to help me change the Regex to allow it please Here is the Regex: ^\+(?:[0-9]\x20?){6,14}[0-9]$ Because I am trying to only accept the format that is used by WhatsApp and some numbers might have multiple spaces or multiple Dashes. Also the Plus sign has to be mandatory Here some more examples of the format on WA. +96274567123 +967773-123-123

问题 so I'm trying to make this Regex allow this the Dash symbol - For Example this Phone Number is not matching right now +212 659-123456 So I need someone to help me change the Regex to allow it please Here is the Regex: ^\+(?:[0-9]\x20?){6,14}[0-9]$ Because I am trying to only accept the format that is used by WhatsApp and some numbers might have multiple spaces or multiple Dashes. Also the Plus sign has to be mandatory Here some more examples of the format on WA. +96274567123 +967773-123-123

问题 In my model I have a Recipe entity and Ingredient entity. In Recipe entity, the relation is defined like this: /** * @ORM\OneToMany(targetEntity="Ingredient", mappedBy="recipe", cascade={"remove", "persist"}, orphanRemoval=true) * @ORM\OrderBy({"priority" = "ASC"}) */ private $ingredients; In Ingredient entity: /** * @ORM\ManyToOne(targetEntity="Recipe", inversedBy="ingredients") * @ORM\JoinColumn(name="recipe_id", referencedColumnName="id") */ private $recipe; I am working on CRUD controller

问题 In my model I have a Recipe entity and Ingredient entity. In Recipe entity, the relation is defined like this: /** * @ORM\OneToMany(targetEntity="Ingredient", mappedBy="recipe", cascade={"remove", "persist"}, orphanRemoval=true) * @ORM\OrderBy({"priority" = "ASC"}) */ private $ingredients; In Ingredient entity: /** * @ORM\ManyToOne(targetEntity="Recipe", inversedBy="ingredients") * @ORM\JoinColumn(name="recipe_id", referencedColumnName="id") */ private $recipe; I am working on CRUD controller

问题 In my model I have a Recipe entity and Ingredient entity. In Recipe entity, the relation is defined like this: /** * @ORM\OneToMany(targetEntity="Ingredient", mappedBy="recipe", cascade={"remove", "persist"}, orphanRemoval=true) * @ORM\OrderBy({"priority" = "ASC"}) */ private $ingredients; In Ingredient entity: /** * @ORM\ManyToOne(targetEntity="Recipe", inversedBy="ingredients") * @ORM\JoinColumn(name="recipe_id", referencedColumnName="id") */ private $recipe; I am working on CRUD controller

问题 I want to make an input form in Java so that the user can enter details. Something like this: My code import java.awt.GridLayout; import javax.swing.*; class JOptionPaneTest { public static void main(String[] args) { String[] items = {"One", "Two", "Three", "Four", "Five"}; JComboBox combo = new JComboBox(items); JTextField field1 = new JTextField("1234.56"); JTextField field2 = new JTextField("9876.54"); JPanel panel = new JPanel(new GridLayout(0, 1)); panel.add(combo); panel.add(new JLabel(

问题 I'm using jQuery to show/hide a div by clicking on the show/hide buttons. However, my code doesn't work because every time it returns to the way it was before when I click on my buttons. I'm almost sure that this is due to a page reload, because every time I click on a button it reloads the page. Does anybody know what could be the reason behind this? Here is the important chunk of code: <form role="form" method="post" action="./something.php"> ... <button id="hidemultmachines" onclick="$('