php - Modify MySQL query to also show child records sorted under parent records in a menu -


i need build mysql database driven link menu shows links user has permission view.

the link menu have parent , child links. child links under parent links (like directory structure).

i have 2 database tables shown below. intranet_links has link records , user_link_permissions has permissions determine if user can view link or not.

here current sql query returns links user has permission view...

also here working demo see results http://sqlfiddle.com/#!9/8aa75/2

select intranet_links.id,        intranet_links.title,        intranet_links.url,        intranet_links.description,        intranet_links.sort_order,        intranet_links.parent,        user_link_permissions.user_id user_link_permissions join intranet_links on user_link_permissions.link_id=intranet_links.id , user_link_permissions.permission=1 user_link_permissions.permission=1 , user_link_permissions.user_id=1 order title

i need results sort in way let child links ordered under parent links.

i using php doesn't have sql. desird end result menu this...

enter image description here

database structure , data...

create table if not exists `intranet_links` (   `id` int(11) not null auto_increment,   `title` varchar(255) default null,   `description` text not null,   `url` varchar(255) default null,   `active` int(2) not null default '1',   `sort_order` int(11) default null,   `parent` int(10) not null default '1',   primary key (`id`),   unique key `id` (`id`) ) engine=innodb  default charset=latin1 auto_increment=8 ;  -- -- dumping data table `intranet_links` -- insert `intranet_links` (`id`, `title`, `description`, `url`, `active`, `sort_order`, `parent`) values ('1', 'lnk parent 1', '', 'google.com', 1, null, 0), ('2', 'ink 2', '', 'google.com', 1, null, 0), ('3', 'link 3', '', 'google.com', 1, null, 0), ('4', 'lnk parent 2', '', 'google.com', 1, null, 0), ('5', 'ink 5', '', 'google.com', 1, null, 2), ('6', 'link 6', '', 'google.com', 1, null, 2), ('7', 'ink 7', '', 'google.com', 1, null, 2), ('8', 'link 8', '', 'google.com', 1, null, 2);    create table if not exists `user_link_permissions` (   `id` int(100) not null auto_increment,   `user_id` int(30) not null,   `link_id` int(30) not null,   `permission` int(2) not null default '0',   key `id` (`id`) ) engine=innodb  default charset=latin1 auto_increment=8 ;  -- -- dumping data table `user_link_permissions` -- insert `user_link_permissions` (`id`, `user_id`, `link_id`, `permission`) values (1, 1, 1, 1), (2, 1, 2, 1), (3, 1, 3, 0), (4, 1, 4, 1), (5, 1, 5, 1), (6, 1, 6, 0), (7, 1, 7, 1), (8, 1, 8, 1), (9, 2, 1, 1), (10, 2, 2, 1), (11, 2, 3, 1), (12, 2, 4, 1), (13, 2, 5, 1), (14, 2, 6, 1), (15, 2, 7, 1), (16, 2, 8, 1);

i think best best break 2 queries. first query of link_ids user has permission see.

select link_id user_link_permissions user_id=:user , permission=1

then result of query, second query links , order them want

select * intranet_links id in (123, 456, 789) order title

you subquery, prefer , have had great success breaking sql smaller pieces.


Comments

Post a Comment

Popular posts from this blog

asp.net mvc - SSO between MVCForum and Umbraco7 -

i need integrate sso between mvcforum (forum of company) , umbraco7 (manages cms company). however struggling shared authentication work. tried several ways suggested on other threads still not running expected. here did: 1. in mvcforum (forum.mywebsite.com) 1.1. machine key in web.xml: <machinekey validationkey="the same key umbraco7" decryptionkey="the same key umbraco7" validation="sha1" decryption="aes" /> 1.2. authenticate forms in web.xml <forms name="my-sso-auth" protection="all" path="/" timeout="43200" domain="forum.mywebsite.com" loginurl="/members/logon" enablecrossappredirects="true" /> 2. in umbraco7 (news.mywebsite.com) 2.1. machine key in web.xml: <machinekey validationkey="the same key mvcforum" decryptionkey="the same key mvcforum" validation="sha1" decryption="aes" /> 2.2. a
Read more

Python Tkinter keyboard using bind -

i have problem using bind option can click button in keyboard, , call function once key pressed. tried taking other codes have similar purpose , saw i'm doing pretty same, though still have problem must've missed. thankful if me this. here's code: # -*- coding: utf-8 -*- #imports tkinter import * pil import imagetk, image import time import tkmessagebox #===========================================================================================================================================# #tkinter class class app(frame): def __init__(self, master=none): frame.__init__(self, master) self.pack() #===========================================================================================================================================# #game pieces classes class board: def __init__(self, rows = 7, columns = 6, picture_height = none, picture_width = none): self.rows = rows self.columns = columns self.picture
Read more

ubuntu - Selenium Node Not Connecting to Hub, Not Opening Port -

i'm trying set demo selenium grid. have digital ocean ubuntu 14.02 droplet. (i have 2 , tried set using 2 different machines got nowhere.) i'm trying run hub , node both locally. here input both hub, node, , nmap results. https://gist.github.com/mekhami/d5bbecca5ff0de9d2dc9 so, node starting tcp connection reset , port it's supposed operate on closed. i have had no luck in number of different options , configurations work. but... of course, worked randomly once. don't know why, don't know did, know 1 brief moment, node connected , saw on grid console. tried run test , went down again , i've never seen come up. please let me know more information can provide. update: randomly came online again. don't know happened, might related timeout or time_wait or going on. this because vm/server not have enough entropy available. to resolve problem, install haveged (or other similar things). the instructions of how install haveged on ubu
Read more