Thu, 15 Oct 2020 13:31:52 +0200
changes the way how to deal with child entities + adds component lead
1 /*
2 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
3 *
4 * Copyright 2018 Mike Becker. All rights reserved.
5 *
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9 * 1. Redistributions of source code must retain the above copyright
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20 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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29 package de.uapcore.lightpit.dao.postgres;
31 import de.uapcore.lightpit.dao.ProjectDao;
32 import de.uapcore.lightpit.entities.IssueSummary;
33 import de.uapcore.lightpit.entities.Project;
34 import de.uapcore.lightpit.entities.User;
36 import java.sql.Connection;
37 import java.sql.PreparedStatement;
38 import java.sql.ResultSet;
39 import java.sql.SQLException;
40 import java.util.ArrayList;
41 import java.util.List;
42 import java.util.Objects;
44 import static de.uapcore.lightpit.dao.Functions.setForeignKeyOrNull;
45 import static de.uapcore.lightpit.dao.Functions.setStringOrNull;
47 public final class PGProjectDao implements ProjectDao {
49 private final PreparedStatement insert, update, list, find;
50 private final PreparedStatement issue_summary;
52 public PGProjectDao(Connection connection) throws SQLException {
53 list = connection.prepareStatement(
54 "select projectid, name, description, repourl, " +
55 "userid, username, lastname, givenname, mail " +
56 "from lpit_project " +
57 "left join lpit_user owner on lpit_project.owner = owner.userid " +
58 "order by name");
60 find = connection.prepareStatement(
61 "select projectid, name, description, repourl, " +
62 "userid, username, lastname, givenname, mail " +
63 "from lpit_project " +
64 "left join lpit_user owner on lpit_project.owner = owner.userid " +
65 "where projectid = ?");
67 issue_summary = connection.prepareStatement(
68 "select phase, count(*) as total "+
69 "from lpit_issue " +
70 "join lpit_issue_phases using(status) " +
71 "where project = ? "+
72 "group by phase "
73 );
75 insert = connection.prepareStatement(
76 "insert into lpit_project (name, description, repourl, owner) values (?, ?, ?, ?)"
77 );
78 update = connection.prepareStatement(
79 "update lpit_project set name = ?, description = ?, repourl = ?, owner = ? where projectid = ?"
80 );
81 }
83 public Project mapColumns(ResultSet result) throws SQLException {
84 final var proj = new Project(result.getInt("projectid"));
85 proj.setName(result.getString("name"));
86 proj.setDescription(result.getString("description"));
87 proj.setRepoUrl(result.getString("repourl"));
88 proj.setOwner(PGUserDao.mapColumns(result));
90 return proj;
91 }
93 public IssueSummary getIssueSummary(Project project) throws SQLException {
94 issue_summary.setInt(1, project.getId());
95 final var result = issue_summary.executeQuery();
96 final var summary = new IssueSummary();
97 while (result.next()) {
98 final var phase = result.getInt("phase");
99 final var total = result.getInt("total");
100 switch(phase) {
101 case 0:
102 summary.setOpen(total);
103 break;
104 case 1:
105 summary.setActive(total);
106 break;
107 case 2:
108 summary.setDone(total);
109 break;
110 }
111 }
112 return summary;
113 }
115 @Override
116 public void save(Project instance) throws SQLException {
117 Objects.requireNonNull(instance.getName());
118 insert.setString(1, instance.getName());
119 setStringOrNull(insert, 2, instance.getDescription());
120 setStringOrNull(insert, 3, instance.getRepoUrl());
121 setForeignKeyOrNull(insert, 4, instance.getOwner(), User::getId);
122 insert.executeUpdate();
123 }
125 @Override
126 public boolean update(Project instance) throws SQLException {
127 if (instance.getId() < 0) return false;
128 Objects.requireNonNull(instance.getName());
129 update.setString(1, instance.getName());
130 setStringOrNull(update, 2, instance.getDescription());
131 setStringOrNull(update, 3, instance.getRepoUrl());
132 setForeignKeyOrNull(update, 4, instance.getOwner(), User::getId);
133 update.setInt(5, instance.getId());
134 return update.executeUpdate() > 0;
135 }
137 @Override
138 public List<Project> list() throws SQLException {
139 List<Project> projects = new ArrayList<>();
140 try (var result = list.executeQuery()) {
141 while (result.next()) {
142 final var project = mapColumns(result);
143 projects.add(project);
144 }
145 }
146 return projects;
147 }
149 @Override
150 public Project find(int id) throws SQLException {
151 find.setInt(1, id);
152 try (var result = find.executeQuery()) {
153 if (result.next()) {
154 final var project = mapColumns(result);
155 return project;
156 } else {
157 return null;
158 }
159 }
160 }
161 }