mirror of
https://github.com/levinsv/pgadmin3.git
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193 lines
6.1 KiB
C++
193 lines
6.1 KiB
C++
#pragma once
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class Table;
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class Cols
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{
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public:
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wxString name;
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int num;
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// Для v - ссылка view/table текущего уровня (самый нижний уровень).
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// Для r - сыылка на FK таблицу
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Table *linkTable=NULL;
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int linknumcol;
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wxString linkOid;
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bool pk = false;
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//(самый нижний уровень).
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Table* relTable = NULL;
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int relcol = 0;
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bool operator< (const Cols& e) const
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{
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return (name < e.name);
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}
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bool operator==(const Cols& otherPoint) const
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{
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if (this->name == otherPoint.name ) return true;
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else return false;
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}
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struct HashFunction
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{
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size_t operator()(const Cols& point) const
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{
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size_t xHash = std::hash<wxString>()(point.name);
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//size_t yHash = std::hash<wxString>()(point.y) << 1;
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return xHash;
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}
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};
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};
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class Table
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{
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public:
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Table(const wxString &tablename);
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Table() {};
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const wxString& GetName(){ return name; };
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const wxString& GetSchema() { return schema; };
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const wxString& GetAlias() { return alias; };
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void SetAlias(const wxString str) { alias=str; };
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const wxString& GetOID() { return oid; };
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const int GetColsCount() { return cols.size(); };
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Cols& operator[](unsigned index) { return cols[index]; }
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void SetCol(int index,Cols & valcol){ cols[index]=valcol; }
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char GetType() { return type; };
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void Set(wxString kind,wxString sch,wxString toid, wxString tname);
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void AddColumn(wxString ncol, wxString colname, wxString oidTable, wxString ncolTable);
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bool operator< (const Table& e) const
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{
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return (schema < e.schema)||(schema == e.schema && name < e.name);
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}
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bool operator==(const Table& otherPoint) const
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{
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if (this->name == otherPoint.name && this->schema== otherPoint.schema) return true;
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else return false;
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}
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struct HashFunction
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{
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size_t operator()(const Table& point) const
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{
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size_t xHash = std::hash<wxString>()(point.name);
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size_t yHash = std::hash<wxString>()(point.schema) << 1;
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return xHash ^ yHash;
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}
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};
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private:
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void make_name(const wxString& tablename);
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wxString name;
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wxString schema;
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wxString alias;
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char type=0; // pg_class.relkind
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wxString oid;
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//std::unordered_set<Cols,Cols::HashFunction> cols;
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std::vector<Cols> cols;
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};
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/// <summary>
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/// Связка двух таблиц по колонкам
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/// </summary>
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class LinkTableFK
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{
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public:
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Table *parent;
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Table *child;
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std::vector<int> colsp;
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std::vector<int> colsc;
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};
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typedef struct tab_col_struct {
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Table* t; int column;
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bool operator< (const tab_col_struct& e) const
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{
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return (t < e.t) || (t == e.t && column < e.column);
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}
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bool operator==(const tab_col_struct& otherPoint) const
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{
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if (t == otherPoint.t && column == otherPoint.column) return true;
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else return false;
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}
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} tab_col_struct;
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typedef struct tab_tab_struct {
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Table* t;
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Table* t2;
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bool operator< (const tab_tab_struct& e) const
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{
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return (t < e.t) || (t == e.t && t2 < e.t2);
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}
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} tab_tab_struct;
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typedef struct fk_full_struct {
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tab_col_struct left;
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tab_col_struct right;
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bool operator< (const fk_full_struct& e) const
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{
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return (left < e.left) || (left == e.left && right < e.right);
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}
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} fk_full_struct;
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class TableColsMap
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{
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public:
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enum Flag {
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ALL_LEFT_TO_RIGHT = 1,
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SEQUENCE_LIST_TABLE = 2,
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USE_TRANSIT_FK = 4,
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NOT_ADD_FIRST_SPACE=8
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};
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#define CHKFLAG(va,par) (((va) & (par))==(par))
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#ifdef DEBUG
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static void TEST() {
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Table v1("\"schema\".table");
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Table v2("\"schema\".\"table\"");
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Table v3("schema.table");
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Table v4("schema.\"table\"");
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Table v5("\"table\"");
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Table v6("table");
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Table e1("sc.table.t");
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Table e2("\"\".table");
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Table e3("\".\".table");
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}
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#endif // DEBUG
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// Рекурсивное поисковое выражения для разбора внутреннего представления view
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// Получаем ссылку на таблицу и колонку связанную со столбцом view.
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TableColsMap() { regaction.Compile(
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R"((?x)
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\{TARGETENTRY.*?
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(\{ ([^{}]++|(?1))* \})
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\s+:resno\s(\d+)\s
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:resname\s(\S+)\s.*?
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:resorigtbl\s(\d+)\s.*?
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:resorigcol\s(\d+)(\s:)
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)",wxRE_EXTENDED);
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};
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void checkDBconn(pgConn *dbconn);
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/// <summary>
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/// Добавить таблицы для поиска ссылок.
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/// </summary>
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/// <param name="dbconn">Соединие к БД</param>
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/// <param name="tables">список таблиц</param>
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/// <param name="alias">список синонимов</param>
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/// <returns>true если успешно добавлены</returns>
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wxString AddTableList(pgConn* dbconn, const wxArrayString& tables, const wxArrayString& alias, const TableColsMap::Flag flag, const wxString& leftexp);
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void MapViewColToRelCol(const TableColsMap::Flag flag);
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Table* GetRelTableForViewCol(const wxString oid, int ncolview, int& outrelcol);
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Table* GetTablebyOID(const wxString oid);
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Table* GetTableByName(const wxString& sch, const wxString& tname);
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void BuildMapTableColumnsToSQLexp(Table* reltab, const wxString& alias, std::map<tab_col_struct, wxString>& map);
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wxString MapTableToTable(std::map<tab_col_struct, wxString>& maplefttables, std::map<tab_col_struct, wxString>& maprighttable, const TableColsMap::Flag flag, const wxString& leftexp);
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~TableColsMap();
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private:
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void getDatabaseViews();
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void getDatabaseTables(const TableColsMap::Flag flag);
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tab_col_struct search_link(tab_col_struct start, tab_col_struct chknode, std::set<fk_full_struct>& traz, int level);
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void Clear();
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pgConn* db = NULL;
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//std::map<Table *, std::vector<LinkTableFK>> tablechild_fk;
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std::multimap<tab_col_struct, tab_col_struct> all_fk_index; // {parent_t, n_col}={ftable, fcol}
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//std::map<Table *, wxString> alias;
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wxRegEx regaction;
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std::map<wxString, Table*> oids;
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wxString whereexp;
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};
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