src/relation.cpp
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|---|---|---|---|
| 1 | /****************************************************************************** | ||
| 2 | ** | ||
| 3 | ** Copyright (C) 2026 Ivan Pinezhaninov <ivan.pinezhaninov@gmail.com> | ||
| 4 | ** | ||
| 5 | ** This file is part of the SQLon - which can be found at | ||
| 6 | ** https://github.com/IvanPinezhaninov/sqlon/. | ||
| 7 | ** | ||
| 8 | ** THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR | ||
| 9 | ** IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, | ||
| 10 | ** FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. | ||
| 11 | ** IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, | ||
| 12 | ** DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR | ||
| 13 | ** OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR | ||
| 14 | ** THE USE OR OTHER DEALINGS IN THE SOFTWARE. | ||
| 15 | ** | ||
| 16 | ******************************************************************************/ | ||
| 17 | |||
| 18 | #include <sqlon/relation.h> | ||
| 19 | |||
| 20 | #include <memory> | ||
| 21 | #include <utility> | ||
| 22 | |||
| 23 | namespace sqlon { | ||
| 24 | |||
| 25 | 163 | qualified_name::qualified_name(std::initializer_list<std::string> parts) | |
| 26 |
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326 | : m_parts(parts) |
| 27 | { | ||
| 28 |
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163 | if (m_parts.empty()) throw invalid_query{"a qualified name requires at least one component"}; |
| 29 |
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326 | for (const std::string& part : m_parts) |
| 30 |
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166 | if (part.empty()) throw invalid_query{"qualified name components cannot be empty"}; |
| 31 | 163 | } | |
| 32 | |||
| 33 | 978 | const std::vector<std::string>& qualified_name::parts() const noexcept | |
| 34 | { | ||
| 35 | 978 | return m_parts; | |
| 36 | } | ||
| 37 | |||
| 38 | 203 | relation::relation(detail::relation_ptr node) | |
| 39 | 203 | : m_node(std::move(node)) | |
| 40 | 203 | {} | |
| 41 | |||
| 42 | 194 | const detail::relation_ptr& detail::relation_access::node(const relation& value) noexcept | |
| 43 | { | ||
| 44 | 194 | return value.m_node; | |
| 45 | } | ||
| 46 | |||
| 47 | 16 | relation detail::relation_access::make(detail::relation_ptr node) | |
| 48 | { | ||
| 49 | 16 | return relation{std::move(node)}; | |
| 50 | } | ||
| 51 | |||
| 52 | 156 | table::table(std::string name) | |
| 53 |
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313 | : table(qualified_name{std::move(name)}) |
| 54 | 312 | {} | |
| 55 | |||
| 56 | 2 | table::table(std::string name, std::string alias) | |
| 57 |
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6 | : table(qualified_name{std::move(name)}, std::move(alias)) |
| 58 | 4 | {} | |
| 59 | |||
| 60 | 157 | table::table(qualified_name name) | |
| 61 |
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157 | : table(std::move(name), {}) |
| 62 | 157 | {} | |
| 63 | |||
| 64 | 172 | table::table(qualified_name name, std::string alias) | |
| 65 | 172 | : relation(make_node(name, alias)) | |
| 66 | 172 | , m_identifier(std::move(name)) | |
| 67 |
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344 | , m_alias(std::move(alias)) |
| 68 | 172 | {} | |
| 69 | |||
| 70 | 1 | const std::string& table::name() const noexcept | |
| 71 | { | ||
| 72 | 1 | return m_identifier.parts().back(); | |
| 73 | } | ||
| 74 | |||
| 75 | 473 | const qualified_name& table::identifier() const noexcept | |
| 76 | { | ||
| 77 | 473 | return m_identifier; | |
| 78 | } | ||
| 79 | |||
| 80 | 543 | const std::string& table::alias_name() const noexcept | |
| 81 | { | ||
| 82 | 543 | return m_alias; | |
| 83 | } | ||
| 84 | |||
| 85 | 172 | detail::relation_ptr table::make_node(const qualified_name& name, const std::string& alias) | |
| 86 | { | ||
| 87 |
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172 | std::shared_ptr<detail::relation_node> node = std::make_shared<detail::relation_node>(); |
| 88 | 172 | node->kind = detail::relation_kind::table; | |
| 89 |
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172 | node->name = name.parts().back(); |
| 90 |
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172 | node->qualifiers.assign(name.parts().begin(), name.parts().end() - 1); |
| 91 |
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172 | node->alias = alias; |
| 92 | 344 | return node; | |
| 93 | 172 | } | |
| 94 | |||
| 95 | 194 | detail::relation_ptr detail::to_relation(const relation& value) | |
| 96 | { | ||
| 97 | 194 | return relation_access::node(value); | |
| 98 | } | ||
| 99 | |||
| 100 | namespace detail { | ||
| 101 | |||
| 102 | 16 | relation make_join(detail::join_kind kind, detail::relation_ptr left, detail::relation_ptr right, | |
| 103 | detail::expression_ptr condition) | ||
| 104 | { | ||
| 105 |
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16 | std::shared_ptr<detail::relation_node> node = std::make_shared<detail::relation_node>(); |
| 106 | 16 | node->kind = detail::relation_kind::join; | |
| 107 | 16 | node->join_type = kind; | |
| 108 | 16 | node->left = std::move(left); | |
| 109 | 16 | node->right = std::move(right); | |
| 110 | 16 | node->condition = std::move(condition); | |
| 111 | 32 | return relation_access::make(std::move(node)); | |
| 112 | 16 | } | |
| 113 | |||
| 114 | } // namespace detail | ||
| 115 | } // namespace sqlon | ||
| 116 |