php - Encountering problems with related tables when filling data using Laravel 5.4 fzaninotto/Faker, how to fill the data?

1. There are existing tables raceinfo and groupinfo, and the field race_id of table groupinfo is associated with the primary key of table raceinfo. 2. When using fzaninotto/Faker to fill data into table groupinfo, data filling failure will occur. Question: How to solve the problem of foreign key ass...

巴扎黑 2017-05-16 13:14:54 0  1  540

Do all one-to-one relationships between Laravel data tables use hasOne or hasOne and belongsTo?

Laravel data tables are related one-to-one, use hasOne for both data tables? Or should one table use hasOne and the other table use belongsTo?

天蓬老师 2017-05-16 16:54:24 0  1  1000

java - When dealing with data relationships, what are the advantages and disadvantages of using database table foreign keys versus in-code maintenance?

Recently, I was designing a library table for an enterprise application project. I encountered some data association problems. I was undecided whether it would be better to maintain within the code or perform external association. I am seeking the opinions of experts.

曾经蜡笔没有小新 2017-05-17 10:08:48 0  2  587

Use the primary key value of the data as the index of the associative array to obtain the data

Use the primary key value of the data as the index of the associative array to obtain the data

王林 2023-07-16 17:41:35 0  2  8113

Vuetify data table header array does not accept empty subassociations

I have a datatable using Vuetify that passes the localAuthority attribute from the Rails backend. Everything works fine until I pass an empty child association (nested attribute). In this case "county":<script>importaxiosfrom"axios";exportdefault{name:'LocalAuthorityIndex',...

P粉928591383 2024-03-27 17:30:37 0  1  501

javascript - Problems with dynamically loading data in element ui tables

I wrote a timer. The timer requests background data every 5 seconds, and then passes the data to element ui for table rendering. The data can come out, but the table will jitter when the data is re-rendered. The user experience is not good. What should I do? solve? When the table is empty, no data i...

天蓬老师 2017-06-28 09:26:25 0  1  979

Regarding the data display problem obtained by fastadmin association model

Table A associates with table B and obtains the data of table B. Now I want to output the multiple names obtained in table B as "1,2,3" as shown in the figure. Get multiple "patient_name" of table B through the fields of table A , how should I change the code so that the result o...

小包子 2023-10-07 03:11:05 1  3  725

How to use php+mysql to make dynamic data tables, urgent! ! !

How to use php+mysql to make dynamic data tables, urgent! ! ! How to use php+mysql to make dynamic data tables, urgent! ! ! How to use php+mysql to make dynamic data tables, urgent! ! ! How to use php+mysql to make dynamic data tables, urgent! ! ! How to use php+mysql to make dynamic data tables, ur...

joer 2021-05-12 02:06:09 0  4  1261

Problems with writing data to associated tables when laravel uses DB classes

Problems with writing data to associated tables when laravel uses the DB class: When using the facade, to set roles for the current user, you can use $user-&gt;roles()-&gt;attach(1); as shown below: {Code. ..} Question: Now we need to use the DB class to complete the above functions. The $us...

迷茫 2017-05-16 16:47:37 0  1  417

I could get data related to multiple tables yesterday, but I can't get it today.

There is no problem with the associated model, but I can’t get it if I get the URI of the database. I could get it normally yesterday, but I can’t get it today.

今天敲代码了吗 2020-12-15 10:06:23 0  2  1101

laravel - How to retrieve N pieces of data with associated field values ​​A/B/C from a table using one SQL statement?

How to retrieve N pieces of data with associated field values ​​A/B/C from a table using one SQL statement?

phpcn_u1582 2017-05-16 16:47:32 0  1  370

SQL Select from main table - detail table (formatted data)

I have two tables named "Suppliers" and "Contacts". The data in the Contact table corresponds to a record in the Supplier table. Vendor Data id Name 1 HP 2 Huawei Contact Data id Vendor ID Contact 11 John 21 Smith 31 Will 42 US DOE 52 Wick Now, I want to make a query that should ...

P粉904191507 2024-03-27 22:03:16 0  1  465

javascript - How to count the data in the table with JS

How can I count the data in the table using JS and merge the data as shown in the figure? Please help me solve it.

给我你的怀抱 2017-05-18 10:44:45 0  2  904

How to import PHPExcel table into database

How do I import PHPExcel tables into the database? Can anyone give me a relevant tutorial? When I was looking for tutorials, I found many but couldn’t apply them. Please give me a tutorial

手机用户1616641001 2021-04-08 16:56:29 0  1  988

Mysql database generally uses ID or user name for association

I am a front-end person, and I am exploring while working on a personal PHP project. I need to pass a user ID through a connection to display the data of the corresponding user. I am using mysql. {Code...} So I would like to ask about how to make this ID. (Association) Generally, id or username is u...

三叔 2017-06-24 09:41:31 0  7  1641

javascript - jQuery gets all data from table

As shown in the picture, clicking the Add a Row button will add a row. After filling in the data, click Save below and it will be inserted into the database. The question now is how to get all the data in the table? Please post the code

phpcn_u1582 2017-06-30 09:58:28 0  1  952

The use of adding data in laravel uses valdiate to verify whether the data exists in the relational table

When adding data, is it possible to verify whether the data exists in the relational table through valdiate?

黄舟 2017-05-16 16:48:44 0  3  591

Use IMPORTRANGE to remove one spreadsheet's permission to extract data from another spreadsheet

withIMPORTRANGESpreadSheetA, B, C, etc. request access to extract data from SpreadSheet1 (Figure 1). Example: =IMPORTRANGE("SpreadSheet1";"Sheet!A1") I want to remove access (revoke permission) from spreadsheet A to extract data from spreadsheet 1 (image 2) revoke access allowed ...

P粉511985082 2024-03-30 23:27:35 0  1  698

python - xlwt insert table data horizontally

There is data: [(1,),(2,),(3,)],[('a',),('b',),('c',)],[('e', ),('f',),('g',)] respectively represent the values ​​of three different columns. The requirement is: write table records horizontally: My program is as follows, it can only achieve sequence insertion. I don’t know how to modify the order ...

phpcn_u1582 2017-05-18 10:50:46 0  2  770

Datatables ajax returns data order inconsistent with data order in table

Datatables in the project uses Ajax as the data source. When ajax returns the data, I check the data returned by ajax and find that the order of the data returned by ajax is inconsistent with the order of the data displayed in the datatables table. How can I make the two display consistent? The foll...

PHP中文网 2017-06-12 09:28:06 0  1  839