persist

How to re-use model data on post back with MVC

别等时光非礼了梦想. 提交于 2019-12-08 07:35:22
问题 I'm passing structured data to my MVC page when it loads initially. After the user submits a contact form, I want to re-use the same data (I just "leave" the same page up) so I don't have to hit the database again. I declared a variable global to the controller to store the model data, but it's null at the end of the post back, so it looks like I can't re-use it there. Seems like this would be a typical scenario. How do I handle it? 回答1: If you are wanting to reuse viewmodel or other

Symfony2 remove and save many to many relations

折月煮酒 提交于 2019-12-07 15:44:53
问题 I need your help today. I'm working on a small application using symphony 2.1 but I have a base problem, I have to tables with a many to many relation which creates a third table: class Usuario implements UserInterface { /** * @ORM\ManyToMany(targetEntity="Alood\BackBundle\Entity\Alergeno", inversedBy="usuarios") * @ORM\JoinTable(name="UsuariosProductos", * joinColumns={@ORM\JoinColumn(name="usuario_user", referencedColumnName="user")}, * inverseJoinColumns={@ORM\JoinColumn(name="alergeno_id"

How to persist data and model in angular JS

早过忘川 提交于 2019-12-07 13:40:26
问题 I have one search page where user enters search criteria and search results will be displayed and when the user navigates to another page and comes back to this page the results should be persist. Each submodule has it's own app.js and controller and how to persist data across pages. I am not pretty sure how to go with $localStorage 回答1: As comments have said, services and factories are both capable of this. I generally handle this using localStorageService like you have suggested. First,

Hibernate Cascade PERSIST

北城余情 提交于 2019-12-07 01:07:36
问题 I have a general question about Hibernate that I'm batteling with. I have class A and class B, where B is dependent on A In my code when I call em.persist(objOfTypeA) I would expect the insert to go and insert into both tables AAA and BBB. If I manually presist A get A's ID and fill it in the list for each object and then persist that list, things are working. But I would expect this to happen magically by Hibernate. Am I doing something wrong? Or am I just expecting too much of Hibernate?

How to persist data and model in angular JS

蓝咒 提交于 2019-12-05 20:03:45
I have one search page where user enters search criteria and search results will be displayed and when the user navigates to another page and comes back to this page the results should be persist. Each submodule has it's own app.js and controller and how to persist data across pages. I am not pretty sure how to go with $localStorage As comments have said, services and factories are both capable of this. I generally handle this using localStorageService like you have suggested. First, load the local storage module in your index.html AFTER angularJS, but BEFORE your app.js. <script src="/angular

Redis 命令参考

本小妞迷上赌 提交于 2019-12-05 14:02:53
Key(键) DEL DUMP EXISTS EXPIRE EXPIREAT KEYS MIGRATE MOVE OBJECT PERSIST PEXPIRE PEXPIREAT PTTL RANDOMKEY RENAME RENAMENX RESTORE SORT TTL TYPE SCAN String(字符串) APPEND BITCOUNT BITOP DECR DECRBY GET GETBIT GETRANGE GETSET INCR INCRBY INCRBYFLOAT MGET MSET MSETNX PSETEX SET SETBIT SETEX SETNX SETRANGE STRLEN Hash(哈希表) HDEL HEXISTS HGET HGETALL HINCRBY HINCRBYFLOAT HKEYS HLEN HMGET HMSET HSET HSETNX HVALS HSCAN List(列表) BLPOP BRPOP BRPOPLPUSH LINDEX LINSERT LLEN LPOP LPUSH LPUSHX LRANGE LREM LSET LTRIM RPOP RPOPLPUSH RPUSH RPUSHX Set(集合) SADD SCARD SDIFF SDIFFSTORE SINTER SINTERSTORE SISMEMBER

Spring transactional context doesn't persist data

醉酒当歌 提交于 2019-12-05 11:27:45
I know that my problem is a common problem, but I've checked a lot of questions here, checked Spring documentation and I really don't know what I am doing wrong. My problem: I've got a Spring WebFlow project using JPA (implementation: OpenJPA + MySQL database). I use Spring ORM to inject EntityManager (by @PersistenceContext annotation) to my simple RegisterDAO. I have configured GlassFishs (which I am using) connection pools for using MySQL and everything works - I can work with my database, but when I am persisting something - nothing happens (data are not persist to database). I know that

How to persist a new entity containing multiple identical instances of another unpersisted entity with spring-boot and JPA?

£可爱£侵袭症+ 提交于 2019-12-04 17:06:26
Overview: I'm building a spring-boot application which, in part, retrieves some entities from an external REST service and compares it to previous versions of the entity held locally in a database. I'm injecting EntityManager with @PersistenceContext , and using that to work with the database, as there are many entity types, and the type is initially unknown to the module. I could get a JpaRepository from a factory, but the number of different entity types is liable to grow, and I'd rather not rely on that if at all possible. Problem: When the module retrieves an entity which it doesn't hold

Redis中的键值过期操作

∥☆過路亽.° 提交于 2019-12-04 06:49:43
1.过期设置 Redis 中设置过期时间主要通过以下四种方式: expire key seconds:设置 key 在 n 秒后过期; pexpire key milliseconds:设置 key 在 n 毫秒后过期; expireat key timestamp:设置 key 在某个时间戳(精确到秒)之后过期; pexpireat key millisecondsTimestamp:设置 key 在某个时间戳(精确到毫秒)之后过期; 下面分别来看以上这些命令的具体实现。 1)expire:N 秒后过期 127.0.0.1:6379> set key value OK 127.0.0.1:6379> expire key 100 (integer) 1 127.0.0.1:6379> ttl key (integer) 97 其中命令 ttl 的全称是 Time To Live 表示此键值在 n 秒后过期。例如,上面的结果 97 表示 key 在 97s 后过期。 2)pexpire:N 毫秒后过期 127.0.0.1:6379> set key2 value2 OK 127.0.0.1:6379> pexpire key2 100000 (integer) 1 127.0.0.1:6379> pttl key2 (integer) 94524 其中 pexpire key2

Android: onSaveInstanceState in Back button

妖精的绣舞 提交于 2019-12-04 04:00:51
问题 I am developing an application in which i am overriding the back button. I created a check box. On click of which i am calling intent for: startActivityforResult(); And also maintaining the state of activity as : @Override public void onSaveInstanceState(Bundle savedInstanceState) { super.onSaveInstanceState(savedInstanceState); savedInstanceState.putBoolean("checkbox", checkbox.isChecked()); } @Override protected void onRestoreInstanceState(Bundle savedInstanceState) { super