Question

我看过rails screencast，我已经完成了：

brew install postgresql

initdb /usr/local/var/postgres

pg_ctl -D /usr/local/var/postgres -l /usr/local/var/postgres/server.log start

rails new ispiti_postgres -d postgresql

bundle install

我启动了服务器，我收到了这个错误：

读取错误：ActiveRecord :: NoDatabaseError：致命：角色“darko”不存在

然后我尝试了这个：

darko@darko-Lenovo-G570 ~/Documents/pokusi/ispiti_postgres $ bundle exec rake db:create:all
FATAL:  role "darko" does not exist
Couldn't create database for {"adapter"=>"postgresql", "encoding"=>"unicode", "pool"=>5, "database"=>"ispiti_postgres_development"}
rake aborted!

我尝试在database.yaml postgres，darko，root中更改darko中的用户名，然后命令使用rails db，但每次都有例如：

darko @ darko-Lenovo-G570~ / Documents / pokusi / ispiti_postgres $ rails db

psql：致命：角色“root”不存在

我尝试没有用户名，但仍然收到消息，即postgres角色不存在。

我不知道如何访问darko@darko-Lenovo-G570 ~/Documents/pokusi/ispiti_postgres $ sudo -u postgres -i [sudo] password for darko: postgres@darko-Lenovo-G570 ~ $ psql psql: FATAL: role "postgres" does not exist。我试试这个：

# product_images/models/models.py
# -*- coding: utf-8 -*-
from odoo import models, fields, api, tools

class PublishingStatus(models.Model):
    _name = 'product_images.publishing_status'
    _description = 'Publishing status'

    name = fields.Char(string="Name")
    slug = fields.Char(string="Slug")


class ProductImage(models.Model):
    _name = 'product_images.product_image'
    _description = 'Product image'

    name = fields.Char(string="Alternative text")
    product_id = fields.Many2one('product.product', string='Product', ondelete='set null', index=True)
    original_image = fields.Binary(string='Original image')

    @api.model
    def _get_default_state(self):
        return self.env['product_images.publishing_status'].search([['slug', '=', 'draft']])

    @api.model
    def _get_all_states(self, groups, domain, order):
        state_ids = self.env['product_images.publishing_status'].search([])
        return state_ids

    state_id = fields.Many2one(
        'product_images.publishing_status',
        string='Publishing status',
        default=_get_default_state,
        group_expand='_get_all_states',
    )

    @api.multi
    def action_set_to_draft(self):
        self.state_id = self.env['product_images.publishing_status'].search([['slug', '=', 'draft']])

    @api.multi
    def action_request_for_approval(self):
        self.state_id = self.env['product_images.publishing_status'].search([['slug', '=', 'pending']])

    @api.multi
    def action_approve(self):
        self.state_id = self.env['product_images.publishing_status'].search([['slug', '=', 'approved']])

    @api.multi
    def action_reject(self):
        self.state_id = self.env['product_images.publishing_status'].search([['slug', '=', 'rejected']])

由于

Answer 1

我使用的是Linux 32位，LinuxBrew只能安装在64位系统上。所以brew命令无效。

Rails app Postgres角色不存在

1 个答案: